JP2014508038A - 白金原子の原子層を有する触媒を形成する方法 - Google Patents
白金原子の原子層を有する触媒を形成する方法 Download PDFInfo
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- BASFCYQUMIYNBI-UHFFFAOYSA-N platinum Chemical group [Pt] BASFCYQUMIYNBI-UHFFFAOYSA-N 0.000 title claims abstract description 66
- 238000000034 method Methods 0.000 title claims abstract description 33
- 239000003054 catalyst Substances 0.000 title claims abstract description 28
- 229910052751 metal Inorganic materials 0.000 claims abstract description 40
- 239000002184 metal Substances 0.000 claims abstract description 40
- 239000000463 material Substances 0.000 claims abstract description 25
- 150000003057 platinum Chemical class 0.000 claims abstract description 14
- 238000006467 substitution reaction Methods 0.000 claims abstract description 13
- 238000006243 chemical reaction Methods 0.000 claims abstract description 10
- 230000003197 catalytic effect Effects 0.000 claims abstract description 6
- 230000015572 biosynthetic process Effects 0.000 claims abstract description 5
- 239000004094 surface-active agent Substances 0.000 claims description 20
- KRKNYBCHXYNGOX-UHFFFAOYSA-N citric acid Chemical compound OC(=O)CC(O)(C(O)=O)CC(O)=O KRKNYBCHXYNGOX-UHFFFAOYSA-N 0.000 claims description 18
- RYGMFSIKBFXOCR-UHFFFAOYSA-N Copper Chemical compound [Cu] RYGMFSIKBFXOCR-UHFFFAOYSA-N 0.000 claims description 17
- 238000004758 underpotential deposition Methods 0.000 claims description 9
- KCXVZYZYPLLWCC-UHFFFAOYSA-N EDTA Chemical compound OC(=O)CN(CC(O)=O)CCN(CC(O)=O)CC(O)=O KCXVZYZYPLLWCC-UHFFFAOYSA-N 0.000 claims description 8
- 239000010949 copper Substances 0.000 claims description 8
- 238000000151 deposition Methods 0.000 claims description 8
- 229910000510 noble metal Inorganic materials 0.000 claims description 8
- 229910052802 copper Inorganic materials 0.000 claims description 7
- 239000002245 particle Substances 0.000 claims description 7
- 239000002253 acid Substances 0.000 claims description 6
- 239000000203 mixture Substances 0.000 claims description 4
- 150000001875 compounds Chemical class 0.000 claims description 3
- 230000002401 inhibitory effect Effects 0.000 claims 4
- 239000000243 solution Substances 0.000 description 20
- 239000010410 layer Substances 0.000 description 17
- KDLHZDBZIXYQEI-UHFFFAOYSA-N Palladium Chemical compound [Pd] KDLHZDBZIXYQEI-UHFFFAOYSA-N 0.000 description 12
- 229910052697 platinum Inorganic materials 0.000 description 12
- 239000000843 powder Substances 0.000 description 9
- 230000000694 effects Effects 0.000 description 6
- OKTJSMMVPCPJKN-UHFFFAOYSA-N Carbon Chemical compound [C] OKTJSMMVPCPJKN-UHFFFAOYSA-N 0.000 description 5
- 230000008021 deposition Effects 0.000 description 5
- QAOWNCQODCNURD-UHFFFAOYSA-N Sulfuric acid Chemical compound OS(O)(=O)=O QAOWNCQODCNURD-UHFFFAOYSA-N 0.000 description 4
- 229910052799 carbon Inorganic materials 0.000 description 4
- UFHFLCQGNIYNRP-UHFFFAOYSA-N Hydrogen Chemical compound [H][H] UFHFLCQGNIYNRP-UHFFFAOYSA-N 0.000 description 3
- 229910052739 hydrogen Inorganic materials 0.000 description 3
- 239000001257 hydrogen Substances 0.000 description 3
- 239000002356 single layer Substances 0.000 description 3
- 239000007771 core particle Substances 0.000 description 2
- 238000003487 electrochemical reaction Methods 0.000 description 2
- 239000000446 fuel Substances 0.000 description 2
- 238000004519 manufacturing process Methods 0.000 description 2
- 238000010926 purge Methods 0.000 description 2
- 239000012266 salt solution Substances 0.000 description 2
- UGFAIRIUMAVXCW-UHFFFAOYSA-N Carbon monoxide Chemical compound [O+]#[C-] UGFAIRIUMAVXCW-UHFFFAOYSA-N 0.000 description 1
- 229910002091 carbon monoxide Inorganic materials 0.000 description 1
- 239000011248 coating agent Substances 0.000 description 1
- 238000000576 coating method Methods 0.000 description 1
- 238000007796 conventional method Methods 0.000 description 1
- 230000001351 cycling effect Effects 0.000 description 1
- PCHJSUWPFVWCPO-UHFFFAOYSA-N gold Chemical compound [Au] PCHJSUWPFVWCPO-UHFFFAOYSA-N 0.000 description 1
- 229910052737 gold Inorganic materials 0.000 description 1
- 239000010931 gold Substances 0.000 description 1
- 229910002804 graphite Inorganic materials 0.000 description 1
- 239000010439 graphite Substances 0.000 description 1
- 150000002739 metals Chemical class 0.000 description 1
- 238000012986 modification Methods 0.000 description 1
- 230000004048 modification Effects 0.000 description 1
- 229910052763 palladium Inorganic materials 0.000 description 1
- 238000002360 preparation method Methods 0.000 description 1
- 230000002269 spontaneous effect Effects 0.000 description 1
- 239000000758 substrate Substances 0.000 description 1
- 238000002604 ultrasonography Methods 0.000 description 1
- 238000005406 washing Methods 0.000 description 1
- XLYOFNOQVPJJNP-UHFFFAOYSA-N water Substances O XLYOFNOQVPJJNP-UHFFFAOYSA-N 0.000 description 1
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Abstract
Description
白金単層触媒の調製
Pd/C粉末を、黒鉛シート上に直接、ゆるく配置するか、または、基体上に流し込み、加圧成形する。
Claims (14)
- 触媒材料を形成する方法であって、
白金クラスターの形成を制御するように置換反応の反応速度を抑制する、
ことを含み、金属原子の原子層は、白金原子の原子層を備える触媒材料を製造するように、白金原子と置換されることを特徴とする、触媒材料を形成する方法。 - 金属原子は、銅を含むことを特徴とする請求項1記載の方法。
- 前記の抑制することは、界面活性剤を使用することを含むことを特徴とする請求項1記載の方法。
- 前記の抑制することは、クエン酸を使用することを含むことを特徴とする請求項1記載の方法。
- 前記の抑制することは、エチレンジアミン四酢酸(EDTA)を使用することを含むことを特徴とする請求項1記載の方法。
- 前記の抑制することは、界面活性剤と、金属原子および白金原子の少なくとも1つとの配位化合物を形成することを含むことを特徴とする請求項1記載の方法。
- 金属原子の原子層は、貴金属コア上にあることを特徴とする請求項1記載の方法。
- 触媒材料を形成する方法であって、
白金原子の原子層を備える触媒材料を製造するように、界面活性剤の存在下で金属原子の原子層を白金原子と置換する、
ことを含むことを特徴とする、触媒材料を形成する方法。 - 界面活性剤は、クエン酸、EDTA、およびこれらの混合物から成る群より選択されることを特徴とする請求項8記載の方法。
- 界面活性剤は、酸および白金塩を有する溶液中にあることを特徴とする請求項8記載の方法。
- 触媒材料を形成する方法であって、
金属原子の原子層で被覆された金属コアを備える粒子を提供し、
界面活性剤および白金塩を含有する溶液を提供し、
金属原子を溶液からの白金原子と置換して白金原子の原子層で被覆された金属コアを備える触媒材料を製造するように粒子を溶液で処理する、
ことを含むことを特徴とする、触媒材料を形成する方法。 - 電位下堆積(UPD)を用いて金属コア上に金属原子の原子層を堆積させることをさらに含むことを特徴とする請求項11記載の方法。
- 界面活性剤は、クエン酸、EDTA、およびこれらの混合物から成る群より選択されることを特徴とする請求項11記載の方法。
- 粒子を溶液で処理することは、粒子を溶液と混合することを含むことを特徴とする請求項11記載の方法。
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PCT/US2011/025693 WO2012115624A1 (en) | 2011-02-22 | 2011-02-22 | Method of forming a catalyst with an atomic layer of platinum atoms |
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EP2678105A1 (en) | 2014-01-01 |
US9610566B2 (en) | 2017-04-04 |
CN103402631A (zh) | 2013-11-20 |
US20130324394A1 (en) | 2013-12-05 |
CN107649110B (zh) | 2021-02-02 |
KR101568070B1 (ko) | 2015-11-10 |
WO2012115624A1 (en) | 2012-08-30 |
CN107649110A (zh) | 2018-02-02 |
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