JP2014101551A - 光化学反応装置 - Google Patents
光化学反応装置 Download PDFInfo
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- JP2014101551A JP2014101551A JP2012254701A JP2012254701A JP2014101551A JP 2014101551 A JP2014101551 A JP 2014101551A JP 2012254701 A JP2012254701 A JP 2012254701A JP 2012254701 A JP2012254701 A JP 2012254701A JP 2014101551 A JP2014101551 A JP 2014101551A
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- catalyst layer
- reduction
- oxidation
- photochemical reaction
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- 125000002496 methyl group Chemical group [H]C([H])([H])* 0.000 description 1
- 230000005012 migration Effects 0.000 description 1
- 238000013508 migration Methods 0.000 description 1
- DIAIBWNEUYXDNL-UHFFFAOYSA-N n,n-dihexylhexan-1-amine Chemical compound CCCCCCN(CCCCCC)CCCCCC DIAIBWNEUYXDNL-UHFFFAOYSA-N 0.000 description 1
- GNVRJGIVDSQCOP-UHFFFAOYSA-N n-ethyl-n-methylethanamine Chemical compound CCN(C)CC GNVRJGIVDSQCOP-UHFFFAOYSA-N 0.000 description 1
- PXSXRABJBXYMFT-UHFFFAOYSA-N n-hexylhexan-1-amine Chemical compound CCCCCCNCCCCCC PXSXRABJBXYMFT-UHFFFAOYSA-N 0.000 description 1
- JACMPVXHEARCBO-UHFFFAOYSA-N n-pentylpentan-1-amine Chemical compound CCCCCNCCCCC JACMPVXHEARCBO-UHFFFAOYSA-N 0.000 description 1
- 229910000510 noble metal Inorganic materials 0.000 description 1
- 235000006408 oxalic acid Nutrition 0.000 description 1
- 229940100684 pentylamine Drugs 0.000 description 1
- 239000010702 perfluoropolyether Substances 0.000 description 1
- 238000000206 photolithography Methods 0.000 description 1
- 229920005597 polymer membrane Polymers 0.000 description 1
- 230000003405 preventing effect Effects 0.000 description 1
- 230000002265 prevention Effects 0.000 description 1
- UMJSCPRVCHMLSP-UHFFFAOYSA-N pyridine Natural products COC1=CC=CN=C1 UMJSCPRVCHMLSP-UHFFFAOYSA-N 0.000 description 1
- 239000010453 quartz Substances 0.000 description 1
- 229920005989 resin Polymers 0.000 description 1
- 239000011347 resin Substances 0.000 description 1
- 150000003839 salts Chemical class 0.000 description 1
- VYPSYNLAJGMNEJ-UHFFFAOYSA-N silicon dioxide Inorganic materials O=[Si]=O VYPSYNLAJGMNEJ-UHFFFAOYSA-N 0.000 description 1
- 229910052938 sodium sulfate Inorganic materials 0.000 description 1
- 235000011152 sodium sulphate Nutrition 0.000 description 1
- 239000007787 solid Substances 0.000 description 1
- 238000001228 spectrum Methods 0.000 description 1
- 229920001187 thermosetting polymer Polymers 0.000 description 1
- 229910052719 titanium Inorganic materials 0.000 description 1
- 239000010936 titanium Substances 0.000 description 1
- IMFACGCPASFAPR-UHFFFAOYSA-N tributylamine Chemical compound CCCCN(CCCC)CCCC IMFACGCPASFAPR-UHFFFAOYSA-N 0.000 description 1
- 238000009966 trimming Methods 0.000 description 1
- YFTHZRPMJXBUME-UHFFFAOYSA-N tripropylamine Chemical compound CCCN(CCC)CCC YFTHZRPMJXBUME-UHFFFAOYSA-N 0.000 description 1
- 238000007740 vapor deposition Methods 0.000 description 1
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Abstract
【解決手段】本実施形態の光化学反応装置によれば、水を酸化して酸素とプロトンを生成する酸化触媒層19と、二酸化炭素を還元して炭素化合物を生成する還元触媒層20と、前記酸化触媒層と前記還元触媒層との間に形成され、光エネルギーにより電荷分離する半導体層17と、を有する積層体と、前記酸化触媒層側と前記還元触媒層側との間でイオンを移動させるイオン移動経路と、を具備する。
【選択図】 図2
Description
以下に図1および図2を用いて、本実施形態に係る光化学反応セルについて説明する。
2CO2+4H++4e− → 2CO+2H2O ・・・(2)
(1)式に示すように、酸化触媒層19付近において、H2Oが酸化されて(電子を失い)O2とH+が生成される。そして、酸化触媒層19側で生成されたH+は、後述するイオン移動経路を介して還元触媒層20側に移動する。
以下に図3乃至図23を用いて、本実施形態に係る光化学反応セルを用いた光化学反応装置について説明する。
図3乃至図12を用いて、第1の実施形態に係る光化学反応装置について説明する。
まず、第1の実施形態に係る光化学反応装置の構造について説明する。
次に、第1の実施形態に係る光化学反応装置における変形例について説明する。
次に、第1の実施形態に係る光化学反応装置の製造方法について説明する。ここでは、イオン移動経路となる開口部51として貫通孔52を形成する場合を例に説明する。
上記第1の実施形態によれば、光化学反応装置は、酸化触媒層19、還元触媒層20、およびこれらの間に形成された多接合型太陽電池17の積層体で構成される光化学反応セルと、酸化触媒層19と還元触媒層20との間でイオン(H+)を移動させるイオン移動経路と、を備える。これにより、酸化触媒層19で発生するH+を、イオン移動経路を介して還元触媒層20に輸送することが可能になる。その結果、還元触媒層20におけるCO2の還元分解反応を促進することができ、高い光還元効率を得ることが可能である。
図13乃至図19を用いて、第2の実施形態に係る光化学反応装置について説明する。
まず、第2の実施形態に係る光化学反応装置の構造について説明する。
次に、第2の実施形態に係る光化学反応装置の製造方法について説明する。
上記第2の実施形態によれば、第1の実施形態と同様の効果を得ることができる。
次に、第2の実施形態に係る光化学反応装置における変形例について説明する。
図24乃至図27を用いて、第3の実施形態に係る光化学反応装置について説明する。第3の実施形態は、光化学反応セルを管状(パイプ状)の配管に適用する例である。これにより、CO2を分解しつつ、酸化触媒層19および還元触媒層20で生成された化合物を容易に運搬することができ、化学エネルギーとして利用することができる。以下に、第3の実施形態について詳説する。なお、第3の実施形態において、上記第1の光化学反応装置と同様の点については説明を省略し、主に異なる点について説明する。
まず、第3の実施形態に係る光化学反応装置の構造について説明する。
次に、第3の実施形態に係る光化学反応装置における変形例について説明する。
上記第3の実施形態によれば、第1の実施形態と同様の効果を得ることができる。
次に、第3の実施形態に係る光化学反応装置の適用例について説明する。
Claims (18)
- 水を酸化して酸素とプロトンを生成する酸化触媒層と、二酸化炭素を還元して炭素化合物を生成する還元触媒層と、前記酸化触媒層と前記還元触媒層との間に形成され、光エネルギーにより電荷分離する半導体層と、を有する積層体と、
前記酸化触媒層側と前記還元触媒層側との間でイオンを移動させるイオン移動経路と、
を具備することを特徴とする光化学反応装置。 - 前記積層体を内部に含み、前記積層体によって分離された前記酸化触媒層側に配置される酸化反応用電解槽と前記還元反応用電極側に配置される還元反応用電解槽とを備える電解槽をさらに具備することを特徴とする請求項1に記載の光化学反応装置。
- 前記イオン移動経路は、前記積層体を貫通する開口部であることを特徴とする請求項2に記載の光化学反応装置。
- 前記イオン移動経路は、イオン交換膜を含むことを特徴とする請求項2または請求項3に記載の光化学反応装置。
- 前記イオン移動経路は、前記電解槽に接続された電解槽流路であることを特徴とする請求項2に記載の光化学反応装置。
- 前記積層体は、前記酸化触媒層、前記還元触媒層、および前記半導体層を支持し、前記酸化反応用電解槽と前記還元反応用電解槽とを分離し、イオン交換膜で構成される基板をさらに有することを特徴とする請求項2に記載の光化学反応装置。
- 前記還元反応用電解槽は、二酸化炭素吸収剤を含むことを特徴とする請求項2乃至請求項6のいずれか1項に記載の光化学反応装置。
- 前記二酸化炭素吸収剤は、アミン構造またはイオン液体を有することを特徴とする請求項7に記載の光化学反応装置。
- 前記電解槽および前記イオン移動経路においてイオンを循環させる循環機構をさらに具備することを特徴とする請求項2乃至請求項8のいずれか1項に記載の光化学反応装置。
- 前記炭素化合物は、一酸化炭素、蟻酸、メタノール、および/またはメタンであることを特徴とする請求項1乃至請求項9のいずれか1項に記載の光化学反応装置。
- 前記半導体層の開放電圧が、前記酸化触媒層で生じる酸化反応の標準酸化還元電位と前記還元触媒層で生じる還元反応の標準酸化還元電位との差よりも大きいことを特徴とする請求項1乃至請求項10のいずれか1項に記載の光化学反応装置。
- 水を酸化して酸素とプロトンを生成する酸化触媒層と、二酸化炭素を還元して炭素化合物を生成する還元触媒層と、前記酸化触媒層と前記還元触媒層との間に形成され、光エネルギーにより電荷分離する半導体層と、を有する積層体と、
前記酸化触媒層側と前記還元触媒層側との間でイオンを移動させるイオン移動経路と、
前記積層体を内部に含み、前記積層体によって分離された前記酸化触媒層側に配置される酸化反応用電解槽と前記還元反応用電極側に配置される還元反応用電解槽とを備え、管状の配管である電解槽をさらに具備することを特徴とする光化学反応装置。 - 前記積層体は、平板状であることを特徴とする請求項12に記載の光化学反応装置。
- 前記積層体は、前記電解槽に内包され、前記酸化触媒層および前記還元層の一方を外側、他方を内側にした管状であることを特徴とする請求項12に記載の光化学反応装置。
- 水を酸化して酸素とプロトンを生成する酸化触媒層と、二酸化炭素を還元して炭素化合物を生成する還元触媒層と、前記酸化触媒層と前記還元触媒層との間に形成され、光エネルギーにより電荷分離する半導体層と、を有する積層体と、
前記酸化触媒層側と前記還元触媒層側との間でイオンを移動させ、前記積層体を貫通する貫通孔と、
を具備することを特徴とする光化学反応装置。 - 前記貫通孔の円相当径は、1μm以下であることを特徴とする請求項15に記載の光化学反応装置。
- 前記貫通孔は、光の入射面側からその裏面側に向かって円相当径が小さくなるテーパー形状であることを特徴とする請求項15または請求項16に記載の光化学反応装置。
- 前記貫通孔の内面上に、誘電体で構成される保護層が形成されることを特徴とする請求項15乃至請求項17のいずれか1項に記載の光化学反応装置。
Priority Applications (10)
Application Number | Priority Date | Filing Date | Title |
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JP2012254701A JP6034151B2 (ja) | 2012-11-20 | 2012-11-20 | 光化学反応装置 |
EP13856220.2A EP2924146B1 (en) | 2012-11-20 | 2013-11-08 | Photochemical reaction device |
PCT/JP2013/080198 WO2014080774A1 (ja) | 2012-11-20 | 2013-11-08 | 光化学反応装置 |
KR1020157012799A KR101780572B1 (ko) | 2012-11-20 | 2013-11-08 | 광화학 반응 장치 |
AU2013349017A AU2013349017B2 (en) | 2012-11-20 | 2013-11-08 | Photochemical reaction device |
CN201710466495.0A CN107287613A (zh) | 2012-11-20 | 2013-11-08 | 光化学反应装置 |
CN201380060239.1A CN104797741B (zh) | 2012-11-20 | 2013-11-08 | 光化学反应装置 |
TW102141674A TWI490373B (zh) | 2012-11-20 | 2013-11-15 | 光化學反應裝置 |
US14/717,501 US9708717B2 (en) | 2012-11-20 | 2015-05-20 | Photochemical reaction device |
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- 2013-11-08 KR KR1020157012799A patent/KR101780572B1/ko not_active Application Discontinuation
- 2013-11-08 CN CN201710466495.0A patent/CN107287613A/zh active Pending
- 2013-11-08 EP EP13856220.2A patent/EP2924146B1/en active Active
- 2013-11-08 CN CN201380060239.1A patent/CN104797741B/zh active Active
- 2013-11-08 WO PCT/JP2013/080198 patent/WO2014080774A1/ja active Application Filing
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2015
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US10472724B2 (en) | 2013-09-17 | 2019-11-12 | Kabushiki Kaisha Toshiba | Chemical reaction device |
US10494724B2 (en) | 2014-03-11 | 2019-12-03 | Kabushiki Kaisha Toshiba | Photochemical reaction device |
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JP7009341B2 (ja) | 2018-09-25 | 2022-01-25 | 本田技研工業株式会社 | アルカリ水電解装置 |
Also Published As
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US9708717B2 (en) | 2017-07-18 |
AU2013349017B2 (en) | 2016-06-02 |
US20170268115A1 (en) | 2017-09-21 |
TWI490373B (zh) | 2015-07-01 |
KR101780572B1 (ko) | 2017-09-21 |
CN104797741A (zh) | 2015-07-22 |
JP6034151B2 (ja) | 2016-11-30 |
AU2013349017A1 (en) | 2015-06-04 |
EP2924146A4 (en) | 2016-11-02 |
CN107287613A (zh) | 2017-10-24 |
CN104797741B (zh) | 2017-07-14 |
EP2924146A1 (en) | 2015-09-30 |
TW201435148A (zh) | 2014-09-16 |
US20150252482A1 (en) | 2015-09-10 |
KR20150074061A (ko) | 2015-07-01 |
EP2924146B1 (en) | 2017-12-27 |
WO2014080774A1 (ja) | 2014-05-30 |
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