JP6030916B2 - ホルムアルデヒドの製造方法 - Google Patents
ホルムアルデヒドの製造方法 Download PDFInfo
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- JP6030916B2 JP6030916B2 JP2012232358A JP2012232358A JP6030916B2 JP 6030916 B2 JP6030916 B2 JP 6030916B2 JP 2012232358 A JP2012232358 A JP 2012232358A JP 2012232358 A JP2012232358 A JP 2012232358A JP 6030916 B2 JP6030916 B2 JP 6030916B2
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Description
本発明における好ましい実施の形態としては、ボロンドープダイヤモンド(以下BDDと略記する)電極を用いる。このBDD電極は、ダイヤモンド構造を有する炭素膜もしくはバルク状炭素にボロン(B)がドープされているものである。その作製法については、本発明者がすでに報告しているCVD法をはじめとして、基板上に形成したダイヤモンド構造の炭素膜にボロン(B)ドープが可能とされる各種の方法として考慮されてよい。
[参考例]
BDD電極の作製はマイクロ波CVD装置を用いた。前処理としてシリコン基板Si(111)表面をダイヤモンドパウダーで核付けし、次に炭素源としてアセトン50mlとトリメトキシボラン(ホウ素濃度1%)4mlを用いて、プラズマ出力3000Wで2時間、次いで5000Wで6時間、水素60torrの条件で基板上に製膜した。作製したBDD電極は、ラマン分光法およびSEMにて確認した。
上記参考例において作製したBDD電極を作用極とし、対極を白金メッシュ電極、参照極をAg/AgClとした三電極系を構築した。
2)電解液にN2をバブリング(酸素を除去するため)
3)電解液にCO2をバブリング(流量:100ml/min、2時間)
4)電解還元を行った。
<実施例2>
実施例1における電解液を海水に代えて同様にして電解還元を行った。
<実施例3>
電解液として、過塩素酸テトラブチルアンモニウム(濃度0.1M)含有のメタノール溶液を用い、参照極をAg/Ag+として、同様にCO2の電解還元を行った。電位−1〜−1.9V vs.Ag/Ag+の範囲において、ファラデー効率として図3の結果を得た。
Claims (4)
- 液媒体中において導電性ダイヤモンド電極を用いてCO2を電解還元し、
前記液媒体が電解質含有の水溶液、有機溶液または有機水溶液であり、
前記液媒体がNaCl、KCl、及びアルコールからなる群から選択される1以上の成分を含み、
前記導電性ダイヤモンド電極が、ボロンドープ量が0.5〜5質量%の範囲内のボロンドープダイヤモンド電極であることを特徴とするホルムアルデヒドの製造方法。 - 前記液媒体が海水であることを特徴とする請求項1に記載のホルムアルデヒドの製造方法。
- 前記アルコールがメタノールであることを特徴とする請求項1または2に記載のホルムアルデヒドの製造方法。
- 前記液媒体が過塩素酸テトラブチルアンモニウム含有のメタノール溶液であることを特徴とする請求項1から3のいずれかに記載のホルムアルデヒドの製造方法。
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JP6030916B2 true JP6030916B2 (ja) | 2016-11-24 |
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KR101869521B1 (ko) * | 2015-12-29 | 2018-06-22 | 경북대학교 산학협력단 | 액체-액체 계면에서 전기화학전지를 이용한 이산화탄소 전환 시스템 및 방법 |
GB2552526A (en) | 2016-07-28 | 2018-01-31 | Siemens Ag | Electrochemical method of ammonia generation |
CN107841764B (zh) * | 2016-09-19 | 2019-06-18 | 中国科学院大连化学物理研究所 | 一种二氧化碳电还原阴极及其制备方法 |
KR101911751B1 (ko) | 2017-04-27 | 2018-10-25 | 경북대학교 산학협력단 | 액체-액체 계면 및 전자주개-받개 촉매를 이용한 이산화탄소 전환 시스템 및 이산화탄소 전환 방법 |
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JP2011000511A (ja) * | 2009-06-17 | 2011-01-06 | Satoshi Kaneko | 銅及び銅酸化物触媒を利用した大気環境修復方法 |
JP5368340B2 (ja) * | 2010-02-25 | 2013-12-18 | 株式会社神戸製鋼所 | 二酸化炭素の電解還元装置 |
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