JP2009520880A - 高い異なる圧力差を有する電気化学セル用電極、かかる電極の製造方法、及びかかる電極を使用する電気化学セル - Google Patents
高い異なる圧力差を有する電気化学セル用電極、かかる電極の製造方法、及びかかる電極を使用する電気化学セルInfo
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- 239000003054 catalyst Substances 0.000 claims abstract description 25
- BASFCYQUMIYNBI-UHFFFAOYSA-N platinum Chemical compound [Pt] BASFCYQUMIYNBI-UHFFFAOYSA-N 0.000 claims description 40
- UFHFLCQGNIYNRP-UHFFFAOYSA-N Hydrogen Chemical compound [H][H] UFHFLCQGNIYNRP-UHFFFAOYSA-N 0.000 claims description 33
- RTAQQCXQSZGOHL-UHFFFAOYSA-N Titanium Chemical compound [Ti] RTAQQCXQSZGOHL-UHFFFAOYSA-N 0.000 claims description 23
- 238000000034 method Methods 0.000 claims description 21
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- 229910052697 platinum Inorganic materials 0.000 claims description 20
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- MYMOFIZGZYHOMD-UHFFFAOYSA-N Dioxygen Chemical compound O=O MYMOFIZGZYHOMD-UHFFFAOYSA-N 0.000 claims description 14
- KDLHZDBZIXYQEI-UHFFFAOYSA-N Palladium Chemical compound [Pd] KDLHZDBZIXYQEI-UHFFFAOYSA-N 0.000 claims description 14
- 229910001882 dioxygen Inorganic materials 0.000 claims description 14
- 229910052741 iridium Inorganic materials 0.000 claims description 12
- GKOZUEZYRPOHIO-UHFFFAOYSA-N iridium atom Chemical compound [Ir] GKOZUEZYRPOHIO-UHFFFAOYSA-N 0.000 claims description 12
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- 229910052763 palladium Inorganic materials 0.000 claims description 7
- QCWXUUIWCKQGHC-UHFFFAOYSA-N Zirconium Chemical compound [Zr] QCWXUUIWCKQGHC-UHFFFAOYSA-N 0.000 claims description 5
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- 239000010941 cobalt Substances 0.000 claims description 5
- GUTLYIVDDKVIGB-UHFFFAOYSA-N cobalt atom Chemical compound [Co] GUTLYIVDDKVIGB-UHFFFAOYSA-N 0.000 claims description 5
- 229910052735 hafnium Inorganic materials 0.000 claims description 5
- VBJZVLUMGGDVMO-UHFFFAOYSA-N hafnium atom Chemical compound [Hf] VBJZVLUMGGDVMO-UHFFFAOYSA-N 0.000 claims description 5
- 229910052759 nickel Inorganic materials 0.000 claims description 5
- 229910052758 niobium Inorganic materials 0.000 claims description 5
- 239000010955 niobium Substances 0.000 claims description 5
- GUCVJGMIXFAOAE-UHFFFAOYSA-N niobium atom Chemical compound [Nb] GUCVJGMIXFAOAE-UHFFFAOYSA-N 0.000 claims description 5
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- 239000010937 tungsten Substances 0.000 claims description 5
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- JJWKPURADFRFRB-UHFFFAOYSA-N carbonyl sulfide Chemical compound O=C=S JJWKPURADFRFRB-UHFFFAOYSA-N 0.000 description 1
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- C—CHEMISTRY; METALLURGY
- C02—TREATMENT OF WATER, WASTE WATER, SEWAGE, OR SLUDGE
- C02F—TREATMENT OF WATER, WASTE WATER, SEWAGE, OR SLUDGE
- C02F1/00—Treatment of water, waste water, or sewage
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Abstract
【選択図】図2
Description
好ましくは、保持ユニットはリング状に形成され、より好ましくは内側に溝を有するリング状ユニットである。
・所定の場合に、担体の基材として働くスポンジ及び/又は顆粒及び/又は繊維材料を平均粒径又は平均直径に基づいて2以上の画分に分割する。及び
・個々の画分を計画された層の数に従ってプレス器具内でそれぞれの頂部に積層し、その後コールドプレス又は焼結する。
1.O2フリットプレス
2.洗浄、検査
3.組立
実際は、2層から成るフリットである。リブ付きの側では、粗粒チタン粉末(粒径:400〜1000μm(4×10−4m〜1×10−3m))4.5gを使用する。一方、膜と接触する側では、微細粒チタン粉末(粒径:400μm未満(4×10−4m未満))0.5gを使用する。よってそれらの総重量は5.0gである。
チタンと接触する器具の表面を、アルコールに浸漬した人工綿で又は10% HCl溶液で洗浄し、蒸留水ですすぎ、そしてすばやく乾燥する。
作成済みのプラスチックリングをプレス器具の下部に配置する。その後、粗粒チタン粉末をプレス器具内に均等に流し込み、粉末を適当な器具を用いてやさしく広げる。その後、器具を水平に保持して器具を回転させながら、混合物を分配する。
プレス棒をプレス器具内に配置し、チタン粉末をプレスする。操作後、プレス棒をプレス器具から除去する。次の工程では、微細粒チタン粉末をプレス器具に流し込み、広げる。分布後、プレスインサートをプレス器具上部内に配置し、チタン粉末をプレスする。
プレス器具をプレス内に配置し、10トン(1×107g)の重量でプレスする。プレスを開き、プレス器具を取り出す。プレス器具を分解し、プレスされたフリットをプレス器具から叩き出す。プレス後、プレスされたフリット及びプレス器具を圧縮空気で洗浄する。
プレスされたフリットをエタノール中に15分間浸漬し、その後乾燥した。任意の考えられるチタン粒子をフリットの両面から除去し、表面の平滑度を検査した。
O2フリットを、平滑面を上向きにした人工綿上に配置した。イリジウム懸濁液(80mg/ml)500μl(5×10−4l)をフリットのチタン部分にプレスした。さらに、先の操作を、さらにかかるイリジウム懸濁液500μl(5×10−4l)を用いて繰り返し、そして乾燥した。イリジウムでコーティングした電極を、水圧プレスを用いて2トン(2×106g)で懸濁液側にプレスした。
Claims (15)
- 膜の形態である電解質を含有する電解セルにおいて使用される、担体及び/又は触媒を含有する多孔質電極であって、該多孔質電極が異なる平均孔径を有する2以上の層から成り、それらの層のうち、最小の平均孔径を有する接触層(11)が前記膜(2)と接触し、より大きな平均孔径を有する1以上の支持層(12)がこの接触層(11)の他の面と接続することを特徴とする多孔質電極。
- より小さな平均孔径を有する接触層(11)及びより大きな平均孔径を有する支持層(12)から成ることを特徴とする、請求項1に記載の電極。
- 前記接触層(11)がナノ粒子から成る層によって形成されるか、又はナノ粒子から成るさらなる層が前記接触層(11)上に形成されることを特徴とする、請求項2に記載の電極。
- ナノ粒子から成る前記層が白金及び/又はパラジウムを含有することを特徴とする、請求項3に記載の電極。
- 異なる平均孔径を有する前記層が、好ましくはプラスチック製の保持ユニット、好ましくはリング(309、310)によって取り囲まれていることを特徴とする、請求項1〜4のいずれかに記載の電極。
- 前記担体の材料が、金属又は黒鉛、好ましくはニッケル、コバルト、チタン、ジルコニウム、ハフニウム、ニオブ、タングステン、鉄、白金又は黒鉛、最も好ましくはチタンであることを特徴とする、請求項1〜5のいずれかに記載の電極。
- 前記触媒が白金、ロジウム、パラジウム、オスミウム又はイリジウム、好ましくは白金又はイリジウム、最も好ましくはイリジウムであることを特徴とする、請求項1〜5のいずれかに記載の電極。
- 前記接触層(11)の平均孔径が、0.5〜30μm(5×10−7m〜3×10−5m)、好ましくは1.0〜10μm(1×10−6m〜1×10−5m)、最も好ましくは1.5〜2.5μm(1.5×10−6m〜2.5×10−6m)であり、かつ、前記支持層(複数可)(12)の平均孔径が、30〜800μm(3×10−8m〜8×10−4m)、好ましくは50〜500μm(5×10−5m〜5×10−4m)、最も好ましくは100〜300μm(1×10−4m〜3×10−4m)であることを特徴とする、請求項1〜7のいずれかに記載の電極。
- プレスによって膜の形態である電解質を含有する電解セルにおいて使用される、担体及び/又は触媒を含有する多孔質電極の製造方法であって、少なくとも、次の工程を実施することを特徴とする、多孔質電極の製造方法:
・所定の場合に、前記担体の基材として働くスポンジ及び/又は顆粒及び/又は繊維材料を平均粒径又は平均直径に基づいて2以上の画分に分割する。
・個々の画分を計画された層の数に従ってプレス器具内でそれぞれの頂部に積層し、その後コールドプレスする。 - 好ましくはプラスチック製の保持ユニット、好ましくはリング(309、310)が、スポンジ画分、顆粒画分又は繊維画分をそれぞれの頂部に積層する前に前記プレス器具内に配置されることを特徴とする、請求項9に記載の方法。
- チャネル(13)が電極(4)の支持層(12)内でプレスされることを特徴とする、請求項9又は10に記載の方法。
- ナノ粒子から成る層が1以上のプレスされた層上に形成されることを特徴とする、請求項9〜11のいずれかに記載の方法。
- 少なくとも膜、電極、電気接続部及びその他の接続部、並びにこれらすべてを取り囲むハウジングを含む電解セルであって、前記電極の少なくとも1つが異なる平均孔径を有する2以上の層から成り、それらの層のうち、最小の平均孔径を有する接触層(11)が膜(2)と接触し、より大きな平均孔径を有する1以上の支持層(12)がこの接触層(11)の他の面に接続することを特徴とする電解セル。
- 電解セルシステムの要素を形成することを特徴とする、請求項13に記載の電解セル。
- 水素ガス(10)及び/又は酸素ガス(9)の発生用であることを特徴とする、請求項13又は14に記載の電解セル。
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HUP0501201 | 2005-12-23 | ||
PCT/HU2006/000124 WO2007072096A1 (en) | 2005-12-23 | 2006-12-22 | Electrode for electrochemical cell operating with high differential pressure difference, procedure for the manufacturing of such electrode and electrochemical cell for the use of such electrode |
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US20110198232A1 (en) * | 2010-02-15 | 2011-08-18 | Hamilton Sundstrand Corporation | High-differential-pressure water electrolysis cell and method of operation |
EP2963723A1 (en) | 2014-07-04 | 2016-01-06 | Elestor BV | A hydrogen-redox flow battery assembly |
US9777382B2 (en) * | 2015-06-03 | 2017-10-03 | Kabushiki Kaisha Toshiba | Electrochemical cell, oxygen reduction device using the cell and refrigerator using the oxygen reduction device |
EA034943B1 (ru) * | 2017-06-13 | 2020-04-09 | Федеральное государственное бюджетное образовательное учреждение высшего образования "Пензенский государственный университет" (ФГБОУ ВО "Пензенский государственный университет") | Электролизер для производства водорода и способ его изготовления |
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NO20083261L (no) | 2008-09-19 |
RU2008129936A (ru) | 2010-01-27 |
CN101405900B (zh) | 2013-03-20 |
AU2006327900A1 (en) | 2007-06-28 |
HUP0501201A2 (en) | 2007-07-30 |
WO2007072096B1 (en) | 2007-08-23 |
AU2006327900B2 (en) | 2011-10-13 |
EP1977465A1 (en) | 2008-10-08 |
ATE525763T1 (de) | 2011-10-15 |
US20090242391A1 (en) | 2009-10-01 |
WO2007072096A1 (en) | 2007-06-28 |
HU0501201D0 (en) | 2006-02-28 |
CN101405900A (zh) | 2009-04-08 |
UA92774C2 (ru) | 2010-12-10 |
US8152974B2 (en) | 2012-04-10 |
EP1977465B1 (en) | 2011-09-21 |
JP5627183B2 (ja) | 2014-11-19 |
IL192324A (en) | 2013-05-30 |
IL192324A0 (en) | 2008-12-29 |
RU2414020C2 (ru) | 2011-03-10 |
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