CN103400997A - 碳修饰海绵负载镍硼氢化物燃料电池阳极材料的制备方法 - Google Patents
碳修饰海绵负载镍硼氢化物燃料电池阳极材料的制备方法 Download PDFInfo
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- PXHVJJICTQNCMI-UHFFFAOYSA-N Nickel Chemical compound [Ni] PXHVJJICTQNCMI-UHFFFAOYSA-N 0.000 title claims abstract description 33
- 239000000446 fuel Substances 0.000 title claims abstract description 20
- 239000010405 anode material Substances 0.000 title claims abstract description 10
- 229910052759 nickel Inorganic materials 0.000 title claims abstract description 10
- 238000002360 preparation method Methods 0.000 title claims abstract description 9
- OKTJSMMVPCPJKN-UHFFFAOYSA-N Carbon Chemical compound [C] OKTJSMMVPCPJKN-UHFFFAOYSA-N 0.000 claims abstract description 30
- 229910052799 carbon Inorganic materials 0.000 claims abstract description 27
- XLYOFNOQVPJJNP-UHFFFAOYSA-N water Chemical compound O XLYOFNOQVPJJNP-UHFFFAOYSA-N 0.000 claims abstract description 9
- CSCPPACGZOOCGX-UHFFFAOYSA-N Acetone Chemical compound CC(C)=O CSCPPACGZOOCGX-UHFFFAOYSA-N 0.000 claims abstract description 8
- LFQSCWFLJHTTHZ-UHFFFAOYSA-N Ethanol Chemical compound CCO LFQSCWFLJHTTHZ-UHFFFAOYSA-N 0.000 claims abstract description 8
- 239000012153 distilled water Substances 0.000 claims abstract description 8
- 239000000725 suspension Substances 0.000 claims abstract description 8
- 239000007788 liquid Substances 0.000 claims abstract description 7
- GVGUFUZHNYFZLC-UHFFFAOYSA-N dodecyl benzenesulfonate;sodium Chemical compound [Na].CCCCCCCCCCCCOS(=O)(=O)C1=CC=CC=C1 GVGUFUZHNYFZLC-UHFFFAOYSA-N 0.000 claims abstract description 5
- 229940080264 sodium dodecylbenzenesulfonate Drugs 0.000 claims abstract description 5
- 238000005406 washing Methods 0.000 claims abstract description 5
- 239000011259 mixed solution Substances 0.000 claims abstract description 4
- 239000002041 carbon nanotube Substances 0.000 claims description 5
- 229910021393 carbon nanotube Inorganic materials 0.000 claims description 5
- 229920000049 Carbon (fiber) Polymers 0.000 claims description 4
- 239000006229 carbon black Substances 0.000 claims description 3
- 239000004917 carbon fiber Substances 0.000 claims description 3
- 230000008021 deposition Effects 0.000 claims description 3
- 239000002659 electrodeposit Substances 0.000 claims description 3
- VNWKTOKETHGBQD-UHFFFAOYSA-N methane Chemical compound C VNWKTOKETHGBQD-UHFFFAOYSA-N 0.000 claims description 3
- 238000012986 modification Methods 0.000 claims description 3
- 230000004048 modification Effects 0.000 claims description 3
- 230000003197 catalytic effect Effects 0.000 abstract description 3
- 239000011230 binding agent Substances 0.000 abstract description 2
- 239000006258 conductive agent Substances 0.000 abstract description 2
- 238000001035 drying Methods 0.000 abstract 3
- 238000004070 electrodeposition Methods 0.000 abstract 2
- NLXLAEXVIDQMFP-UHFFFAOYSA-N Ammonia chloride Chemical compound [NH4+].[Cl-] NLXLAEXVIDQMFP-UHFFFAOYSA-N 0.000 abstract 1
- 229910021586 Nickel(II) chloride Inorganic materials 0.000 abstract 1
- 235000019270 ammonium chloride Nutrition 0.000 abstract 1
- QMMRZOWCJAIUJA-UHFFFAOYSA-L nickel dichloride Chemical compound Cl[Ni]Cl QMMRZOWCJAIUJA-UHFFFAOYSA-L 0.000 abstract 1
- 238000002791 soaking Methods 0.000 abstract 1
- 238000009210 therapy by ultrasound Methods 0.000 abstract 1
- 241000243142 Porifera Species 0.000 description 15
- HEMHJVSKTPXQMS-UHFFFAOYSA-M Sodium hydroxide Chemical compound [OH-].[Na+] HEMHJVSKTPXQMS-UHFFFAOYSA-M 0.000 description 12
- 229910021607 Silver chloride Inorganic materials 0.000 description 8
- HKZLPVFGJNLROG-UHFFFAOYSA-M silver monochloride Chemical compound [Cl-].[Ag+] HKZLPVFGJNLROG-UHFFFAOYSA-M 0.000 description 8
- 239000000243 solution Substances 0.000 description 5
- UFHFLCQGNIYNRP-UHFFFAOYSA-N Hydrogen Chemical compound [H][H] UFHFLCQGNIYNRP-UHFFFAOYSA-N 0.000 description 4
- 229910052739 hydrogen Inorganic materials 0.000 description 4
- 239000001257 hydrogen Substances 0.000 description 4
- 239000002048 multi walled nanotube Substances 0.000 description 4
- KDLHZDBZIXYQEI-UHFFFAOYSA-N palladium Substances [Pd] KDLHZDBZIXYQEI-UHFFFAOYSA-N 0.000 description 4
- BASFCYQUMIYNBI-UHFFFAOYSA-N platinum Chemical compound [Pt] BASFCYQUMIYNBI-UHFFFAOYSA-N 0.000 description 4
- 239000003054 catalyst Substances 0.000 description 3
- 239000010931 gold Substances 0.000 description 3
- 229910000033 sodium borohydride Inorganic materials 0.000 description 3
- 239000012279 sodium borohydride Substances 0.000 description 3
- 230000000694 effects Effects 0.000 description 2
- 239000006260 foam Substances 0.000 description 2
- 229910052737 gold Inorganic materials 0.000 description 2
- 229910000510 noble metal Inorganic materials 0.000 description 2
- 229910052763 palladium Inorganic materials 0.000 description 2
- 229910052697 platinum Inorganic materials 0.000 description 2
- BQCADISMDOOEFD-UHFFFAOYSA-N Silver Chemical compound [Ag] BQCADISMDOOEFD-UHFFFAOYSA-N 0.000 description 1
- 241001346815 Spongia officinalis Species 0.000 description 1
- UORVGPXVDQYIDP-UHFFFAOYSA-N borane Chemical compound B UORVGPXVDQYIDP-UHFFFAOYSA-N 0.000 description 1
- 229910010277 boron hydride Inorganic materials 0.000 description 1
- 238000006243 chemical reaction Methods 0.000 description 1
- 239000003795 chemical substances by application Substances 0.000 description 1
- 239000013013 elastic material Substances 0.000 description 1
- 239000007772 electrode material Substances 0.000 description 1
- 238000006056 electrooxidation reaction Methods 0.000 description 1
- PCHJSUWPFVWCPO-UHFFFAOYSA-N gold Chemical compound [Au] PCHJSUWPFVWCPO-UHFFFAOYSA-N 0.000 description 1
- 238000006460 hydrolysis reaction Methods 0.000 description 1
- 229910052741 iridium Inorganic materials 0.000 description 1
- 239000002105 nanoparticle Substances 0.000 description 1
- 230000003647 oxidation Effects 0.000 description 1
- 238000007254 oxidation reaction Methods 0.000 description 1
- 239000000376 reactant Substances 0.000 description 1
- 229910052709 silver Inorganic materials 0.000 description 1
- 239000004332 silver Substances 0.000 description 1
- 239000011232 storage material Substances 0.000 description 1
- 230000001988 toxicity Effects 0.000 description 1
- 231100000419 toxicity Toxicity 0.000 description 1
- 238000009736 wetting Methods 0.000 description 1
Classifications
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- Y—GENERAL TAGGING OF NEW TECHNOLOGICAL DEVELOPMENTS; GENERAL TAGGING OF CROSS-SECTIONAL TECHNOLOGIES SPANNING OVER SEVERAL SECTIONS OF THE IPC; TECHNICAL SUBJECTS COVERED BY FORMER USPC CROSS-REFERENCE ART COLLECTIONS [XRACs] AND DIGESTS
- Y02—TECHNOLOGIES OR APPLICATIONS FOR MITIGATION OR ADAPTATION AGAINST CLIMATE CHANGE
- Y02E—REDUCTION OF GREENHOUSE GAS [GHG] EMISSIONS, RELATED TO ENERGY GENERATION, TRANSMISSION OR DISTRIBUTION
- Y02E60/00—Enabling technologies; Technologies with a potential or indirect contribution to GHG emissions mitigation
- Y02E60/30—Hydrogen technology
- Y02E60/50—Fuel cells
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Abstract
本发明提供的是一种碳修饰海绵负载镍硼氢化物燃料电池阳极材料的制备方法。用丙酮和乙醇将海绵清洗数次,在110-130℃下干燥10-15h;取100-150mg碳和500mg十二烷基笨磺酸钠溶于50mL蒸馏水中,超声10-15h得到悬浮液;将清洗过的海绵浸入所述悬浮液中,静置30s后取出,在110-130℃下干燥2h后用大量的蒸馏水洗涤,进而在110-130℃下干燥2-4h,制成导电的碳修饰海绵;取含有2mol dm-3的NH4Cl和0.1mol dm-3的NiCl2的混合溶液作为电沉积液,采用10mA电流,沉积4-6h,最终制成产品。本发明不但Ni、碳和海绵的储量极其丰富易得,价格低廉;载体碳Sponge的比表面积大,导电性好;不使用粘结剂和导电剂;而且催化活性高,性能稳定。解决了硼氢化物燃料阳极放电电流小的问题。
Description
技术领域
本发明涉及的是一种直接硼氢化物燃料电池的阳极材料的制备方法。
背景技术
直接硼氢化物燃料电池(DBFC)是以硼氢化物为燃料的燃料电池,NaBH4是含氢量很高(11wt.%)的储氢材料,理论上NaBH4的直接电氧化可为8e-反应,参见(1)式:
BH4 -+8OH-→BO2 -+4H2O+8e- (1)
DBFC有很高的能量密度(比能量为9300Wh/kg)、比容量(5668Ah/kg)和电池电压(阴极为O2时1.64V);NaBH4不易燃、毒性低(除非吞食,否则无害)、不产生CO2,理论上NaBH4可以使用非铂催化剂;NaBH4溶液能充当热交换介质来冷却电池而无须额外的冷却板;水的电渗拖曳可用做阴极反应物,而无须象氢气那样需要润湿。这些特性对于燃料电池的设计和组装是非常有益的。NaBH4电氧化催化剂主要分为两大类,一类是Pt、Pd、Au、Ir等贵金属,其中Pt的电催化活性最高,但也易于发生NaBH4的水解反应,参见(2)式:
NaBH4+2H2O→4H2+NaBO2 (2)
可参阅Kui Cheng;Dianxue Cao;Fan Yang;Dongming Zhang;Peng Yan;Jinling Yin;guiling wang.Pd doped three-dimensional porous Ni film supported on Ni foam and itshigh performance towards NaBH4 electrooxidation.Journal of Power Sources,2013,242:141-147,以及Cao Dianxue,Gao Yinyi,Wang Guiling,Miao Rongrong,Liu Yao.A directNaBH4-H2O2 fuel cell using Ni foam supported Au nanoparticles as electrodes.International Journal of Hydrogen Energy,2010,35:807-813.。
发明内容
本发明的目的在于提供一种能提高硼氢化钠燃料电池阳极活性,成本低廉的碳修饰海绵负载镍硼氢化物燃料电池阳极材料的制备方法。
本发明的目的是这样实现的:
(1)用丙酮和乙醇将海绵清洗数次,进而将其在110-130℃下干燥10-15h备用;
(2)取100-150mg碳和500mg十二烷基笨磺酸钠溶于50mL蒸馏水中,超声10-15h得到悬浮液;
(3)将清洗过的海绵浸入所述悬浮液中,静置30s后取出,在110-130℃下干燥2h后用大量的蒸馏水洗涤,进而在110-130℃下干燥2-4h,制成导电的碳修饰海绵;
(4)取含有2mol dm-3的NH4Cl和0.1mol dm-3的NiCl2的混合溶液作为电沉积液,采用10mA电流,沉积4-6h,最终制成碳修饰海绵负载镍硼氢化物燃料电池阳极材料。
所述碳为碳纳米管、活性炭、炭黑或碳纤维。
本发明的实质是采用硼氢化钠燃料电池等的电池结构,以碳修饰海绵负载镍(Ni碳Sponge)取代钯、金、银等贵金属催化剂,构成燃料电池的阳极。
本发明的优点在于利用Ni碳Sponge作为硼氢化钠直接电优化的催化剂,不但Ni、碳和海绵的储量极其丰富易得,价格低廉;载体碳Sponge的比表面积大,导电性好;不使用粘结剂和导电剂;而且催化活性高,性能稳定。解决了硼氢化物燃料阳极放电电流小的问题。
本发明中的碳优选为碳纳米管(MWNTs),得到的产物为NiMWNTsSponge电极材料。所述海绵包括含有商用海绵、工业海绵、再生海绵以及各种多孔弹性材料等。
具体实施方式
(1)用丙酮和乙醇将海绵清洗数次,进而将其在110-130℃下干燥10-15h备用;
(2)取1030mg碳纳米管(MWNTs)和500mg十二烷基笨磺酸钠(SDBS)溶于50mL蒸馏水中,超声10-15h得到悬浮液;
(3)将清洗过的海绵浸入所述悬浮液中,静置30s后取出,在110-130℃下干燥2h后用大量的蒸馏水洗涤,进而在110-130℃下干燥2-4h,制成导电的MWNTs修饰海绵(MWNTsSponge);
(4)取含有2mol dm-3的NH4Cl和0.1mol dm-3的NiCl2的混合溶液作为电沉积液,采用10mA电流,沉积4-6h,最终制成碳修饰海绵负载镍硼氢化物燃料电池阳极材料(NiMWNTsSponge)。
上述实施方式中的碳纳米管也可以用活性炭、炭黑或碳纤维代替。所得到的产物的作用与性能如下:
1、以NiMWNTsSponge为工作电极,碳棒为对电极,以Ag/AgCl为参比电极,在2M的NaOH和0.10M的NaBH4的溶液中,-0.7V vs.Ag/AgCl的电压下,计时电流密度达321mA/cm2。
2、以Ni活性炭Sponge为工作电极,碳棒为对电极,以Ag/AgCl为参比电极,在2M的NaOH和0.10M的NaBH4的溶液中,-0.7V vs.Ag/AgCl的电压下,计时电流密度达246mA/cm2。
3、以Ni炭黑Sponge为工作电极,碳棒为对电极,以Ag/AgCl为参比电极,在2M的NaOH和0.10M的NaBH4的溶液中,-0.7V vs.Ag/AgCl的电压下,计时电流密度达293mA/cm2。
4、以Ni碳纤维Sponge为工作电极,碳棒为对电极,以Ag/AgCl为参比电极,在2M的NaOH和0.10M的NaBH4的溶液中,-0.7V vs.Ag/AgCl的电压下,计时电流密度达382mA/cm2。
Claims (2)
1.一种碳修饰海绵负载镍硼氢化物燃料电池阳极材料的制备方法,其特征是:
(1)用丙酮和乙醇将海绵清洗数次,进而将其在110-130℃下干燥10-15h备用;
(2)取100-150mg碳和500mg十二烷基笨磺酸钠溶于50mL蒸馏水中,超声10-15h得到悬浮液;
(3)将清洗过的海绵浸入所述悬浮液中,静置30s后取出,在110-130℃下干燥2h后用大量的蒸馏水洗涤,进而在110-130℃下干燥2-4h,制成导电的碳修饰海绵;
(4)取含有2mol dm-3的NH4Cl和0.1mol dm-3的NiCl2的混合溶液作为电沉积液,采用10mA电流,沉积4-6h,最终制成碳修饰海绵负载镍硼氢化物燃料电池阳极材料。
2.根据权利要求1所述的碳修饰海绵负载镍硼氢化物燃料电池阳极材料的制备方法,其特征是:所述碳为碳纳米管、活性炭、炭黑或碳纤维。
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Cited By (5)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
CN105107509A (zh) * | 2015-09-08 | 2015-12-02 | 徐金富 | 柔性负载型碳纤维载CoB催化剂及其制备方法 |
CN105668711A (zh) * | 2016-02-01 | 2016-06-15 | 浙江工商大学 | 一种用于污染物降解的海绵电极及其制备和应用 |
CN106910898A (zh) * | 2017-02-17 | 2017-06-30 | 哈尔滨工程大学 | 催化H2O2电氧化的碳修饰泡沫碳负载Ni催化剂的制备方法 |
CN110556545A (zh) * | 2019-08-02 | 2019-12-10 | 重庆大学 | 一种硼氢化钠直接氧化的镍基多孔催化剂 |
CN112599798A (zh) * | 2020-12-16 | 2021-04-02 | 北京大学 | 一种NaBH4海绵及其制备方法 |
Citations (2)
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CN101290989A (zh) * | 2007-04-18 | 2008-10-22 | 比亚迪股份有限公司 | 一种燃料电池催化电极的制备方法 |
US20110011772A1 (en) * | 2009-07-15 | 2011-01-20 | Stephen Raymond Schmidt | Nickel and Cobalt Plated Sponge Catalysts |
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Patent Citations (2)
Publication number | Priority date | Publication date | Assignee | Title |
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CN101290989A (zh) * | 2007-04-18 | 2008-10-22 | 比亚迪股份有限公司 | 一种燃料电池催化电极的制备方法 |
US20110011772A1 (en) * | 2009-07-15 | 2011-01-20 | Stephen Raymond Schmidt | Nickel and Cobalt Plated Sponge Catalysts |
Cited By (6)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
CN105107509A (zh) * | 2015-09-08 | 2015-12-02 | 徐金富 | 柔性负载型碳纤维载CoB催化剂及其制备方法 |
CN105668711A (zh) * | 2016-02-01 | 2016-06-15 | 浙江工商大学 | 一种用于污染物降解的海绵电极及其制备和应用 |
CN106910898A (zh) * | 2017-02-17 | 2017-06-30 | 哈尔滨工程大学 | 催化H2O2电氧化的碳修饰泡沫碳负载Ni催化剂的制备方法 |
CN110556545A (zh) * | 2019-08-02 | 2019-12-10 | 重庆大学 | 一种硼氢化钠直接氧化的镍基多孔催化剂 |
CN112599798A (zh) * | 2020-12-16 | 2021-04-02 | 北京大学 | 一种NaBH4海绵及其制备方法 |
CN112599798B (zh) * | 2020-12-16 | 2021-12-07 | 北京大学 | 一种NaBH4海绵及其制备方法 |
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