JPS5869786A - Porous electroconductive sintered body and manufacture - Google Patents
Porous electroconductive sintered body and manufactureInfo
- Publication number
- JPS5869786A JPS5869786A JP56166694A JP16669481A JPS5869786A JP S5869786 A JPS5869786 A JP S5869786A JP 56166694 A JP56166694 A JP 56166694A JP 16669481 A JP16669481 A JP 16669481A JP S5869786 A JPS5869786 A JP S5869786A
- Authority
- JP
- Japan
- Prior art keywords
- sintered body
- porous
- metal
- carbon
- baking
- Prior art date
- Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
- Granted
Links
- 238000004519 manufacturing process Methods 0.000 title claims description 8
- OKTJSMMVPCPJKN-UHFFFAOYSA-N Carbon Chemical compound [C] OKTJSMMVPCPJKN-UHFFFAOYSA-N 0.000 claims description 30
- 229910052799 carbon Inorganic materials 0.000 claims description 28
- 229910052751 metal Inorganic materials 0.000 claims description 20
- 239000002184 metal Substances 0.000 claims description 20
- XPFVYQJUAUNWIW-UHFFFAOYSA-N furfuryl alcohol Chemical compound OCC1=CC=CO1 XPFVYQJUAUNWIW-UHFFFAOYSA-N 0.000 claims description 18
- 239000011521 glass Substances 0.000 claims description 12
- 238000011049 filling Methods 0.000 claims description 10
- 239000000126 substance Substances 0.000 claims description 10
- 238000000034 method Methods 0.000 claims description 8
- WQZGKKKJIJFFOK-GASJEMHNSA-N Glucose Natural products OC[C@H]1OC(O)[C@H](O)[C@@H](O)[C@@H]1O WQZGKKKJIJFFOK-GASJEMHNSA-N 0.000 claims description 6
- 239000008103 glucose Substances 0.000 claims description 6
- 238000010438 heat treatment Methods 0.000 claims description 6
- VYPSYNLAJGMNEJ-UHFFFAOYSA-N silicon dioxide Inorganic materials O=[Si]=O VYPSYNLAJGMNEJ-UHFFFAOYSA-N 0.000 claims description 5
- RYGMFSIKBFXOCR-UHFFFAOYSA-N Copper Chemical compound [Cu] RYGMFSIKBFXOCR-UHFFFAOYSA-N 0.000 claims description 4
- XEEYBQQBJWHFJM-UHFFFAOYSA-N Iron Chemical compound [Fe] XEEYBQQBJWHFJM-UHFFFAOYSA-N 0.000 claims description 4
- PXHVJJICTQNCMI-UHFFFAOYSA-N Nickel Chemical compound [Ni] PXHVJJICTQNCMI-UHFFFAOYSA-N 0.000 claims description 4
- PNEYBMLMFCGWSK-UHFFFAOYSA-N aluminium oxide Inorganic materials [O-2].[O-2].[O-2].[Al+3].[Al+3] PNEYBMLMFCGWSK-UHFFFAOYSA-N 0.000 claims description 4
- 239000007864 aqueous solution Substances 0.000 claims description 4
- 229910052802 copper Inorganic materials 0.000 claims description 4
- 239000010949 copper Substances 0.000 claims description 4
- 239000010453 quartz Substances 0.000 claims description 4
- HBMJWWWQQXIZIP-UHFFFAOYSA-N silicon carbide Chemical compound [Si+]#[C-] HBMJWWWQQXIZIP-UHFFFAOYSA-N 0.000 claims description 4
- 229910010271 silicon carbide Inorganic materials 0.000 claims description 4
- VYZAMTAEIAYCRO-UHFFFAOYSA-N Chromium Chemical compound [Cr] VYZAMTAEIAYCRO-UHFFFAOYSA-N 0.000 claims description 3
- XLYOFNOQVPJJNP-UHFFFAOYSA-M hydroxide Chemical compound [OH-] XLYOFNOQVPJJNP-UHFFFAOYSA-M 0.000 claims description 3
- 239000003960 organic solvent Substances 0.000 claims description 3
- 239000000243 solution Substances 0.000 claims description 3
- ATJFFYVFTNAWJD-UHFFFAOYSA-N Tin Chemical compound [Sn] ATJFFYVFTNAWJD-UHFFFAOYSA-N 0.000 claims description 2
- 150000004996 alkyl benzenes Chemical class 0.000 claims description 2
- 239000000956 alloy Substances 0.000 claims description 2
- 229910045601 alloy Inorganic materials 0.000 claims description 2
- 238000010000 carbonizing Methods 0.000 claims description 2
- 239000011651 chromium Substances 0.000 claims description 2
- 229910052804 chromium Inorganic materials 0.000 claims description 2
- 150000001875 compounds Chemical class 0.000 claims description 2
- 229910052742 iron Inorganic materials 0.000 claims description 2
- 229910000000 metal hydroxide Inorganic materials 0.000 claims description 2
- 229910044991 metal oxide Inorganic materials 0.000 claims description 2
- 150000004706 metal oxides Chemical class 0.000 claims description 2
- 229910052759 nickel Inorganic materials 0.000 claims description 2
- 229910000510 noble metal Inorganic materials 0.000 claims description 2
- 230000001376 precipitating effect Effects 0.000 claims description 2
- 150000003839 salts Chemical class 0.000 claims description 2
- 239000000725 suspension Substances 0.000 claims description 2
- 229910052718 tin Inorganic materials 0.000 claims description 2
- 239000011135 tin Substances 0.000 claims description 2
- UCKMPCXJQFINFW-UHFFFAOYSA-N Sulphide Chemical compound [S-2] UCKMPCXJQFINFW-UHFFFAOYSA-N 0.000 claims 1
- 239000000919 ceramic Substances 0.000 claims 1
- 229910052573 porcelain Inorganic materials 0.000 claims 1
- 238000001556 precipitation Methods 0.000 claims 1
- BASFCYQUMIYNBI-UHFFFAOYSA-N platinum Substances [Pt] BASFCYQUMIYNBI-UHFFFAOYSA-N 0.000 description 19
- 239000011148 porous material Substances 0.000 description 12
- 229910052697 platinum Inorganic materials 0.000 description 9
- 239000002245 particle Substances 0.000 description 8
- XLYOFNOQVPJJNP-UHFFFAOYSA-N water Substances O XLYOFNOQVPJJNP-UHFFFAOYSA-N 0.000 description 8
- 229910001868 water Inorganic materials 0.000 description 8
- 229910000831 Steel Inorganic materials 0.000 description 6
- 239000010959 steel Substances 0.000 description 6
- BQCADISMDOOEFD-UHFFFAOYSA-N Silver Chemical compound [Ag] BQCADISMDOOEFD-UHFFFAOYSA-N 0.000 description 4
- 238000002474 experimental method Methods 0.000 description 4
- 239000000463 material Substances 0.000 description 4
- 230000035699 permeability Effects 0.000 description 4
- 229910052709 silver Inorganic materials 0.000 description 4
- 239000004332 silver Substances 0.000 description 4
- 238000003763 carbonization Methods 0.000 description 3
- 238000006243 chemical reaction Methods 0.000 description 3
- 238000005470 impregnation Methods 0.000 description 3
- 239000007788 liquid Substances 0.000 description 3
- QGZKDVFQNNGYKY-UHFFFAOYSA-N Ammonia Chemical compound N QGZKDVFQNNGYKY-UHFFFAOYSA-N 0.000 description 2
- QAOWNCQODCNURD-UHFFFAOYSA-N Sulfuric acid Chemical compound OS(O)(=O)=O QAOWNCQODCNURD-UHFFFAOYSA-N 0.000 description 2
- 239000007809 chemical reaction catalyst Substances 0.000 description 2
- 238000009826 distribution Methods 0.000 description 2
- 238000005868 electrolysis reaction Methods 0.000 description 2
- 238000000227 grinding Methods 0.000 description 2
- 150000002739 metals Chemical class 0.000 description 2
- 239000000843 powder Substances 0.000 description 2
- NLXLAEXVIDQMFP-UHFFFAOYSA-N Ammonium chloride Substances [NH4+].[Cl-] NLXLAEXVIDQMFP-UHFFFAOYSA-N 0.000 description 1
- QPLDLSVMHZLSFG-UHFFFAOYSA-N Copper oxide Chemical compound [Cu]=O QPLDLSVMHZLSFG-UHFFFAOYSA-N 0.000 description 1
- GRYLNZFGIOXLOG-UHFFFAOYSA-N Nitric acid Chemical compound O[N+]([O-])=O GRYLNZFGIOXLOG-UHFFFAOYSA-N 0.000 description 1
- 229910052774 Proactinium Inorganic materials 0.000 description 1
- 239000006004 Quartz sand Substances 0.000 description 1
- 239000002253 acid Substances 0.000 description 1
- 229910021529 ammonia Inorganic materials 0.000 description 1
- 235000011114 ammonium hydroxide Nutrition 0.000 description 1
- 239000006229 carbon black Substances 0.000 description 1
- 239000003054 catalyst Substances 0.000 description 1
- 239000003153 chemical reaction reagent Substances 0.000 description 1
- 239000003795 chemical substances by application Substances 0.000 description 1
- 239000006185 dispersion Substances 0.000 description 1
- 238000001035 drying Methods 0.000 description 1
- 229910052571 earthenware Inorganic materials 0.000 description 1
- 230000000694 effects Effects 0.000 description 1
- 238000003487 electrochemical reaction Methods 0.000 description 1
- 239000003792 electrolyte Substances 0.000 description 1
- 150000004679 hydroxides Chemical class 0.000 description 1
- 239000003350 kerosene Substances 0.000 description 1
- 238000005461 lubrication Methods 0.000 description 1
- 239000000203 mixture Substances 0.000 description 1
- 229910017604 nitric acid Inorganic materials 0.000 description 1
- 229910052762 osmium Inorganic materials 0.000 description 1
- 239000003973 paint Substances 0.000 description 1
- 239000000049 pigment Substances 0.000 description 1
- 239000010970 precious metal Substances 0.000 description 1
- 239000002244 precipitate Substances 0.000 description 1
- 229910052707 ruthenium Inorganic materials 0.000 description 1
- 239000012266 salt solution Substances 0.000 description 1
- XNRABACJWNCNEQ-UHFFFAOYSA-N silver;azane;nitrate Chemical compound N.[Ag+].[O-][N+]([O-])=O XNRABACJWNCNEQ-UHFFFAOYSA-N 0.000 description 1
- 238000005245 sintering Methods 0.000 description 1
- 239000010935 stainless steel Substances 0.000 description 1
- 229910001220 stainless steel Inorganic materials 0.000 description 1
- 239000011800 void material Substances 0.000 description 1
Landscapes
- Powder Metallurgy (AREA)
- Non-Insulated Conductors (AREA)
- Manufacturing Of Electric Cables (AREA)
- Catalysts (AREA)
- Electrodes For Compound Or Non-Metal Manufacture (AREA)
Abstract
(57)【要約】本公報は電子出願前の出願データであるた
め要約のデータは記録されません。(57) [Summary] This bulletin contains application data before electronic filing, so abstract data is not recorded.
Description
【発明の詳細な説明】
本発明は多孔性導電性焼結体およびその製造方法に関す
る。DETAILED DESCRIPTION OF THE INVENTION The present invention relates to a porous conductive sintered body and a method for manufacturing the same.
ガラス、石英、アルミナ等の多孔性焼結体に貴金属を焼
付けて得られる多孔性電極社公知（４＄開昭４９−１！
１０８７１１号公報） ”ｔ”＆、！＃、この公知例に
おいては、所定の導電性を得るために金属膜を厚くする
必要があり、このためには金属塩溶液の含浸と加熱焼付
処理をくり返す必要があり工業的生産性を低下させる欠
点があった。１＋化学反応における触媒や、電気化学反
応における電極として、前記公知例は、反応させるべき
物質を通過させ得ることが大きな特徴であったが、通過
性をよくするためには孔径の大きな焼結体を使用せねば
ならず、反応効率や導電性を良くするためには、内部表
面積が大で孔径の小さな焼結体を使用せねばならないと
いう矛盾が生じ九。Known by Porous Electrode Co., Ltd., which is obtained by baking a noble metal onto a porous sintered body such as glass, quartz, alumina, etc.
Publication No. 108711) "t"&,!# In this known example, it is necessary to thicken the metal film in order to obtain a predetermined conductivity, and for this purpose, it is necessary to repeat impregnation with a metal salt solution and heat baking treatment, which reduces industrial productivity. There was a drawback. As a catalyst in a 1+ chemical reaction or an electrode in an electrochemical reaction, the major feature of the known examples is that they allow the substance to be reacted to pass through, but in order to improve the permeability, a sintered body with a large pore size is This creates a contradiction in that in order to improve reaction efficiency and conductivity, a sintered body with a large internal surface area and small pore diameter must be used.
本発明者はこのような欠点を改善するために種々の検討
を重ねた結果、基材となる焼結体にあらかじめ炭素を充
填しておき、この上に金属を焼付ければ、通過性のよい
孔径の大きな焼結体を使用しても、金属膜の有効面積を
増大させることができ、導電性や反応触媒としての性質
を改善することができることを見い出し本発明に到達り
、た。As a result of various studies in order to improve these drawbacks, the inventors of the present invention have found that by filling the sintered body as a base material with carbon in advance and baking metal on top of it, it is possible to achieve good permeability. The present invention was achieved based on the discovery that even if a sintered body with a large pore diameter is used, the effective area of the metal film can be increased and the conductivity and properties as a reaction catalyst can be improved.
即ち、本発明は多孔性焼結体に炭素を充填し、この上に
金属を焼付けてなる多孔性導電性焼結体を提供するもの
である。That is, the present invention provides a porous conductive sintered body which is obtained by filling a porous sintered body with carbon and baking metal onto the porous sintered body.
多孔性焼結体に炭素を充填する方法としては、カーボン
ブラックを顔料として含有する塗料を含浸させたり、炭
素微粉末を燈油、有機溶剤。Porous sintered bodies can be filled with carbon by impregnating them with paint containing carbon black as a pigment, or by applying fine carbon powder to kerosene or organic solvents.
水等に分散させたものを含浸させ、しかる後に加熱、乾
燥、炭化処理によって焼結体中に炭素を析出させること
ができる。しかしながら炭素微粉末に粒径分布があると
、大きな粒子が孔の閉塞をおこしたり、小さな粒子が焼
結体から流失したりして、空隙中の炭素の分布状態が不
均一になる恐れがある。従って本発明者等はかかる欠点
のない製造方法を更に検討した結果、多孔性焼結体に有
機物を含浸させ、しかる後に有機物を加熱膨化させるこ
とにより炭素を均一に焼結体中に析出させることができ
ることを見い出した。従って、更に本発明は多孔性焼結
体に有機物を含浸させ、しかる後に有機物を加熱炭化さ
せることにより炭素を充填し、この上に金属を焼付ける
ことを特徴とする多孔性導電性焼結体の製造方法を提供
する本のである。Carbon can be precipitated into the sintered body by impregnating it with a dispersion in water or the like, followed by heating, drying, and carbonization treatment. However, if the fine carbon powder has a particle size distribution, there is a risk that large particles may clog the pores or small particles may be washed away from the sintered body, resulting in uneven distribution of carbon in the pores. . Therefore, the present inventors further investigated a manufacturing method that does not have such drawbacks, and found that by impregnating a porous sintered body with an organic substance and then heating and expanding the organic substance, carbon can be uniformly precipitated in the sintered body. I discovered that it can be done. Therefore, the present invention further provides a porous conductive sintered body characterized by impregnating the porous sintered body with an organic substance, then heating and carbonizing the organic substance to fill it with carbon, and baking a metal thereon. This is a book that provides a method for manufacturing.
本発明において用いられる基材の多孔性焼結体としては
ガラス、石英、アルミナ、炭化けい素、陶器、ａ器等が
挙げられる。焼結体に対する気体や液体の通過性は、通
過する物質の粘性。Examples of the porous sintered body of the base material used in the present invention include glass, quartz, alumina, silicon carbide, earthenware, and A-ware. The permeability of gas and liquid through a sintered body depends on the viscosity of the substance passing through it.
圧力差、および焼結体中の孔の大きさに依存するから、
孔径のみにより通過性を特定することはできないが、炭
素を充填したり、金属膜を形成させた時に孔の閉塞がお
こるようでは、多孔性であることの利点が失なわれるの
で、基材の焼結体は、粒径４０ミクロン以上２０００ミ
クロン以下の粒子を焼結したもので、空隙率が１０１以
上６０１１以下であることが望ましい。Because it depends on the pressure difference and the size of the pores in the sintered body,
Although it is not possible to determine permeability based on the pore diameter alone, if the pores become clogged when filled with carbon or formed with a metal film, the advantage of being porous will be lost, so The sintered body is obtained by sintering particles having a particle size of 40 microns or more and 2000 microns or less, and preferably has a porosity of 101 or more and 6011 or less.
また炭素を充填した後の空隙率が少くとも５−以上であ
ることが望ましい。このような焼結体においては、最小
孔径は約６ミクロンとなり、気体や液体を支障なく通過
させることができる。Further, it is desirable that the porosity after filling with carbon is at least 5- or more. In such a sintered body, the minimum pore diameter is about 6 microns, allowing gas and liquid to pass through it without any problem.
多孔性焼結体に含浸させる有機物としてはグルコース、
ｉ＊ｍ、フルフリルアルコール、アルキルフェノール、
アルキルベンゼン等の５１環または６員環を有する化合
物が好ましい。グルコース、ＪＩＩＩ軸等は水溶液の形
で含浸させることもできる。The organic substances impregnated into the porous sintered body include glucose,
i*m, furfuryl alcohol, alkylphenol,
Compounds having 51 rings or 6-membered rings such as alkylbenzene are preferred. Glucose, JIII axis, etc. can also be impregnated in the form of an aqueous solution.
本発明において用いられる金属としては銅。The metal used in the present invention is copper.
鉄、ニッケル、クロム、錫、貴金属（Ａｇ、ムｕ、Ｐｔ
。Iron, nickel, chromium, tin, precious metals (Ag, Mu, Pt
.
工ｒ、Ｏｓ、Ｐａ、Ｒｕ） ｊたはこれらの合金が挙げ
られる。(R, Os, Pa, Ru) or alloys thereof.
又、金属を焼付ける方法としては、金属の塩の水溶液ま
たは有機溶剤溶液をあらかじめ炭素を充填した多孔性焼
結体に含浸させ、しかる後に金属を析出させる方法、金
属酸化物或いは水酸化物の懸濁液をあらかじめ炭素を充
填した多孔性焼結体に含浸させ、炭素により酸化物を九
は水酸化物を加熱還元して金属を析出させる方法等があ
る。In addition, methods for baking metals include impregnating a porous sintered body filled with carbon in advance with an aqueous solution or organic solvent solution of a metal salt, and then precipitating the metal, or baking a metal oxide or hydroxide. There is a method of impregnating a porous sintered body filled with carbon in advance with a suspension, and heating and reducing oxides or hydroxides with carbon to precipitate metals.
以下実施例により本発明を更に詳述する。The present invention will be explained in more detail with reference to Examples below.
実施例 １
粒径１００ないし２００ミクロンの炭化けい素から製造
された空隙率的４０ｑＩＩの市販ビトリファイド砥石に
、空隙率が約３８−になるよう炭素を充填し、この上に
塩化白金酸Ｓ液を含浸させて、白金量が１５０ ＭＷ／
ａｎ’になるように白金を焼付けた。Example 1 A commercially available vitrified grindstone with a porosity of 40qII made from silicon carbide with a particle size of 100 to 200 microns was filled with carbon so that the porosity was about 38-, and a chloroplatinic acid S solution was poured on top of it. Impregnated with platinum amount of 150 MW/
Platinum was baked so that it became an'.
同じビトリファイド砥石に炭素を充填せずに白金を１５
０ Ｑ／ｃｍ’ になるよう焼付けたものと、粒径１
００ないし２００ζクロンのガラス粉の焼結体（空隙本
釣４２−）に同量の白金を焼付けたものを用意し、０．
Ｉ Ｎ ＫＯｔを電解質とし、ステンレス板を陰極とし
、導電性多孔性焼結体を陽極として、水の電解実験を行
ない、第１図に示す結果を得た。15% platinum without filling the same vitrified grinding wheel with carbon.
0 Q/cm' and one with a particle size of 1
A sintered body of glass powder of 0.00 to 200 ζ chrome (gap hole 42-) is prepared by baking the same amount of platinum.
A water electrolysis experiment was conducted using I N KOt as an electrolyte, a stainless steel plate as a cathode, and a conductive porous sintered body as an anode, and the results shown in FIG. 1 were obtained.
第１図において１は炭素充填したビ） ＩＪファイド砥
石、２ｉ１を炭素充填していないビトリファイド砥石、
ＳＵ焼結ガラスにそれぞれ白金を焼付けたものを陽極と
せる実験の結果であり、４Ｆｉ白金平板を陽極とした場
合の実験結果である。In Figure 1, 1 is a vitrified whetstone filled with carbon, and 2i1 is a vitrified whetstone that is not filled with carbon.
These are the results of an experiment using SU sintered glass with platinum baked on each as an anode, and the results of an experiment using a 4Fi platinum flat plate as an anode.
曲線が低電位側にあるほど、一定電流密度を得るための
電圧が低くてよいので、電極内部における損失が少く、
電極としての性能がすぐれていることを示している。The lower the potential of the curve, the lower the voltage needed to obtain a constant current density, and the less loss inside the electrode.
This shows that the performance as an electrode is excellent.
５と４の比較から、多孔性にすることによる４９−１！
５０８７８号公報および文献「潤滑旦、 ２０８． （
１９７４） Ｊから公知である。From the comparison of 5 and 4, 49-1 by making it porous!
Publication No. 50878 and the document "Lubrication Dan, 208. (
1974) is known from J.
２と３の比較から、導電性（炭化けい素）焼結体と絶縁
性（ガラス）焼結体とでは導電性焼結体のほうがややす
ぐれていることがわかる。From the comparison of 2 and 3, it can be seen that the conductive sintered body is slightly superior to the conductive (silicon carbide) sintered body and the insulated (glass) sintered body.
［７かし本発明の目的は電極に限定されるものではない
から、使用目的によっては２と３ｔｉ同等と考えられる
。[7 However, since the purpose of the present invention is not limited to electrodes, 2 and 3ti may be considered equivalent depending on the purpose of use.
１と２は基材の材質９粒度、空隙率がほぼ同等で、炭素
充填の有無のみが差であるから、性能の差は炭素光＊に
ょる効果を示すものであゐ。No. 1 and No. 2 have almost the same grain size and porosity of the base material, and the only difference is the presence or absence of carbon filling, so the difference in performance is due to the effect of carbon light*.
３と４および１と２の比較は、いずれも白金の実効表面
積の増加による性能の向上を示しているから、本発明の
焼結体は化学反応触媒としてもすぐれていると結論でき
る。Comparisons between No. 3 and No. 4 and No. 1 and No. 2 show improved performance due to an increase in the effective surface area of platinum, so it can be concluded that the sintered body of the present invention is also excellent as a chemical reaction catalyst.
以上の結果から、基材の焼結体の材質や空隙率が等しく
、焼付ける金属の種類と焼付量が同等でも、縦索を充填
することにょシ多孔性導電性焼結体の性質（金属の有効
表面積）が改善されることか明らかであるが０、炭素を
充填する時に孔の閉塵や空隙率の著しい低下がおこると
、本発明の目的である通気性または通液性の良い焼結体
を得ることが困離となる。From the above results, even if the material and porosity of the base sintered body are the same, and the type and amount of baked metal are the same, the properties of the porous conductive sintered body (metallic It is clear that the effective surface area of It becomes difficult to obtain a body.
以下の実施例によれば、上に述べたような欠点がなく、
良好な多孔性導電性焼結体を得ることができる。According to the following examples, there are no drawbacks as mentioned above,
A good porous conductive sintered body can be obtained.
実施例 ２
粒径１００ないし２００ミクロンのアルミナから製造さ
れた市販ビトリファイド砥石にフルフリルアルコールを
含浸し、鋼製容器に入れて点火してから、排気管付のふ
たをし、排気管から炎が出なくなってから徐々に加熱し
、約５００℃に１５分間保持してフルフリルアルコール
を炭化させた。フルフリルアルコール含浸前の空隙率に
約４０チであったが、炭素充填後には約１５１ｓになっ
た。炭素充填後に特開昭４９−１３０８７８号公報に記
載された方法により白金量が２５ ｑ／ａＲゝになるよ
う白金を焼付けた・以上の方法により、空隙率が約１５
優で導電性のよい焼結体（ビトリファイド砥石）が得ら
れた。Example 2 A commercially available vitrified grinding wheel made from alumina with a grain size of 100 to 200 microns was impregnated with furfuryl alcohol, placed in a steel container, ignited, and then covered with a lid with an exhaust pipe so that flames were emitted from the exhaust pipe. After it stopped coming out, it was gradually heated and kept at about 500°C for 15 minutes to carbonize the furfuryl alcohol. The porosity before impregnation with furfuryl alcohol was about 40s, but after carbon filling it became about 151s. After filling with carbon, platinum was baked so that the amount of platinum was 25 q/aR by the method described in JP-A-49-130878. By the above method, the porosity was reduced to about 15 q/aR.
A sintered body (vitrified grindstone) with excellent conductivity was obtained.
実施例 ５
粒＠４０ないし１５０建クロンのガラス粉末より製造さ
れた焼結ガラス（空隙本釣１２−）を鋼製容器に入れて
、この上に、空隙を温良すに十分な量のグルコースを含
むゲルコール５０嗟水溶液を注ぎ、水分が蒸発して、グ
ルコースがカラメル状になり、はとんど発泡しなくなる
まで１００〜１５０℃に加熱した。次に容器に排気管を
有するふたを取りつけ、１５〜ｓＯ分間かけて５００℃
まで昇温し炭化させた。炭化終了後ガラス焼結体の空隙
率は約８−となり、含浸に要したグルコースの重量の約
ｓｏｎの炭素がガラス焼結体に充填された。Example 5 A sintered glass made from glass powder with grains of 40 to 150 square meters (Kogap Honzuri 12-) was placed in a steel container, and an amount of glucose sufficient to warm the void was poured on top of it. A 50-ounce aqueous solution containing gelcol was poured into the flask and heated to 100-150° C. until the water evaporated, the glucose became caramelized, and hardly foamed. Next, attach a lid with an exhaust pipe to the container and heat to 500°C for 15 to sO minutes.
The temperature was raised to 100% and carbonized. After the carbonization was completed, the porosity of the glass sintered body was approximately 8 -, and the glass sintered body was filled with carbon in an amount of approximately 1 son, which is the weight of glucose required for impregnation.
次いで、炭素の充填されたガラス焼結体をガラス皿に移
し、公知の銀鏡反応試薬（硝酸銀アンモニア溶液）を含
浸させてから５０〜８０℃に加熱して銀を析出させた。Next, the glass sintered body filled with carbon was transferred to a glass dish, impregnated with a known silver mirror reaction reagent (silver nitrate ammonia solution), and heated to 50 to 80°C to precipitate silver.
銀が十分に析出してから、焼結体を水でゆすぎ再び鋼製
容器にもどして、最高温度５００℃になるまでゆっくり
加熱して、水、硝酸、アンモニアを除去した。After sufficient silver had precipitated, the sintered body was rinsed with water, returned to the steel container, and slowly heated to a maximum temperature of 500° C. to remove water, nitric acid, and ammonia.
以上の操作で約７１５の銀が充填され、空隙率が約８−
で導電性が良好な焼結体が得られた。With the above operations, approximately 715 silver particles are filled, and the porosity is approximately 8-8.
A sintered body with good conductivity was obtained.
実施例 ４
粒径が１５０ないし２５０ミクロンの石英砂を原料とせ
る焼結体（空隙率約４５饅）に、０．１慢の硫酸を含む
フルフリルアルコール１００重量部と水３５重量部の混
合物を含浸し、８０〜１１０℃に加熱して硬化させた後
３５０〜ｓｏｎ℃に加熱して炭化させる。炭化終了後焼
結体が冷却してから、目皿Ｆ斗の上に敷いた１紙の上に
移し、酸化銅微粉末を水に分散させた液を注ぎ、酸化鋼
を焼結体中に沈積させる。次いで焼結体を電気炉に移し
最高温度９５０〜１０００℃に加熱して酸化鋼を還元し
、銅を析出させた。以上の方法により、孔径１５〜３５
０ミクロンの孔を有し、空隙率約２４チの多孔性導電性
焼結体が得られた。Example 4 A mixture of 100 parts by weight of furfuryl alcohol containing 0.1% sulfuric acid and 35 parts by weight of water was added to a sintered body made from quartz sand with a grain size of 150 to 250 microns (porosity of about 45). is impregnated, heated to 80 to 110°C to harden, and then heated to 350 to 350°C to carbonize. After the sintered body has cooled down after carbonization, it is transferred to a sheet of paper placed on a perforated plate, and a liquid containing fine copper oxide powder dispersed in water is poured into the sintered body. deposit. Next, the sintered body was transferred to an electric furnace and heated to a maximum temperature of 950 to 1000°C to reduce the oxidized steel and precipitate copper. By the above method, the pore size is 15 to 35.
A porous conductive sintered body having 0 micron pores and a porosity of about 24 cm was obtained.
実施例 ５
炭素と酸化鋼の充填を実施例４と同方法にて行ない、次
いで焼結体を石英管状炉の中に入れ、ＣＯガスを通しな
がら２５０〜５５０℃に加熱Ｅ７て酸化鋼管還元した。Example 5 Filling with carbon and oxidized steel was performed in the same manner as in Example 4, and then the sintered body was placed in a quartz tubular furnace and heated to 250 to 550°C while CO gas was passed through E7 to reduce the oxidized steel tube. .
この結果孔径１５〜５０ミクロン、空隙率的１２−の導
電性の良い焼結体が得られた。銅の充填量は約４５０
Ｗｌｌ／ｅｒａであった。As a result, a highly conductive sintered body with a pore diameter of 15 to 50 microns and a porosity of 12- was obtained. The amount of copper filling is approximately 450
It was Wll/era.
第１図は実施例１で行なった水の電解実験の結果を示す
グラフである。
出願人代理人 古 谷 馨FIG. 1 is a graph showing the results of the water electrolysis experiment conducted in Example 1. Applicant's agent Kaoru Furuya
Claims (1)
付けてなる多孔性導電性焼結体。 ２、 多孔性焼結体がガラス、石英、アルミナ。 炭化けい素、陶器又は磁器である特許請求の範囲第１）
Ｊ記載の多孔性導電性焼結体。 ５、金属が銅、鉄、ニッケル、クロム、錫、貴金属また
はこれらの合金である特許請求の範囲第１項記載の多孔
性導電性焼結体。 ４、 多孔性焼結体に有機物を含浸させ、しかる後に有
機物管加熱炭化させることにより炭素を充填し、この上
に金属を焼付けることを特徴とする多孔性導電性焼結体
の製造方法。 ５、 有機物がグルコース、ａｍ、フルフリルアルコ
ール、アルキルフェノール、アルキルベンゼンから選ば
れる５員環またｆｆ１６員環を有する化合物である特許
請求の範Ｓ第４項記載の多孔性導電性焼結体の製造方法
。 ６、金属の焼付を、金属の塩の水溶液または有機溶剤溶
液をあらかじめ炭素を充填した多孔性焼結体に含浸させ
、しかる後に金属を析出させることにより行う特許請求
の範囲第４項記載の多孔性導電性焼結体の製造方法。 乙 金属の焼付を、金属酸化物或いは水酸化物の懸濁液
を、あらかじめ炭素を充填した多孔性焼結体に含浸させ
、炭素によシ駿化物または水酸化物を加熱還元して金属
を析出させることによ如行う特許請求の範囲第４項記載
の多孔性導電性焼結体の製造方法。[Scope of Claims] 1. A porous conductive sintered body obtained by filling a porous sintered body with carbon and baking metal onto the porous sintered body. 2. Porous sintered bodies are glass, quartz, and alumina. Claim 1) which is silicon carbide, ceramic or porcelain
The porous conductive sintered body described in J. 5. The porous conductive sintered body according to claim 1, wherein the metal is copper, iron, nickel, chromium, tin, a noble metal, or an alloy thereof. 4. A method for producing a porous conductive sintered body, which comprises impregnating the porous sintered body with an organic substance, then heating and carbonizing the organic substance tube to fill it with carbon, and baking a metal thereon. 5. The method for producing a porous conductive sintered body according to claim S, item 4, wherein the organic substance is a compound having a 5-membered ring or a 16-membered ring selected from glucose, am, furfuryl alcohol, alkylphenol, and alkylbenzene. . 6. The porous structure according to claim 4, in which the metal is baked by impregnating a porous sintered body filled with carbon in advance with an aqueous solution or an organic solvent solution of a metal salt, and then precipitating the metal. A method for manufacturing a conductive sintered body. B. Baking of metal is done by impregnating a porous sintered body filled with carbon in advance with a suspension of metal oxide or hydroxide, and reducing the sulfide or hydroxide with carbon by heating. A method for producing a porous conductive sintered body according to claim 4, which is carried out by precipitation.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP56166694A JPS5869786A (en) | 1981-10-19 | 1981-10-19 | Porous electroconductive sintered body and manufacture |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP56166694A JPS5869786A (en) | 1981-10-19 | 1981-10-19 | Porous electroconductive sintered body and manufacture |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| JPS5869786A true JPS5869786A (en) | 1983-04-26 |
| JPS621355B2 JPS621355B2 (en) | 1987-01-13 |
Family
ID=15836003
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| JP56166694A Granted JPS5869786A (en) | 1981-10-19 | 1981-10-19 | Porous electroconductive sintered body and manufacture |
Country Status (1)
| Country | Link |
|---|---|
| JP (1) | JPS5869786A (en) |
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JPH01286983A (en) * | 1988-05-12 | 1989-11-17 | Toshiba Ceramics Co Ltd | Carbonaceous composite material |
| JPH11310893A (en) * | 1998-03-03 | 1999-11-09 | Elf Atochem Sa | Bimetal-carrying catalyst using platinum or silver as base, its production and use in electrochemical cell |
-
1981
- 1981-10-19 JP JP56166694A patent/JPS5869786A/en active Granted
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JPH01286983A (en) * | 1988-05-12 | 1989-11-17 | Toshiba Ceramics Co Ltd | Carbonaceous composite material |
| JPH11310893A (en) * | 1998-03-03 | 1999-11-09 | Elf Atochem Sa | Bimetal-carrying catalyst using platinum or silver as base, its production and use in electrochemical cell |
Also Published As
| Publication number | Publication date |
|---|---|
| JPS621355B2 (en) | 1987-01-13 |
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