Photo-electrocatalytic H2 evolution on poly(2,2′-bithiophene) at neutral pH

Chun Hin Ng; Orawan Winther-Jensen; Bartlomiej Kolodziejczyk; C. André Ohlin; Bjorn Winther Jensen

doi:10.1016/j.ijhydene.2014.09.003

Photo-electrocatalytic H₂ evolution on poly(2,2′-bithiophene) at neutral pH

Chun Hin Ng^*, Orawan Winther-Jensen, Bartlomiej Kolodziejczyk, C. André Ohlin, Bjorn Winther Jensen

^*この研究の対応する著者

研究成果: Article › 査読

14 被引用数 (Scopus)

抄録

Vapour phase polymerised (VPP) polybithiophene (PBTh) on glassy carbon is revealed to be an efficient photo-electrocatalytic electrode for the hydrogen evolution reaction (HER). An onset potential of-0.03 V vs SCE for the HER is observed on illumination using visible light in 0.1 mol L^-1 phosphate buffer at pH 6.9, 600 mV lower in energy than E. Hydrogen evolution is confirmed using gas chromatography with a calculated faradaic efficiency of 34% when holding at a potential of-0.5 V. Importantly, this process occurs without platinum and under neutral aqueous conditions thus revealing a significant but overlooked application for PBTh: a potential low-cost cathode material for the splitting of water.

本文言語	English
ページ（範囲）	18230-18234
ページ数	5
ジャーナル	International Journal of Hydrogen Energy
巻	39
号	32
DOI	https://doi.org/10.1016/j.ijhydene.2014.09.003
出版ステータス	Published - 2014 10月 31
外部発表	はい

ASJC Scopus subject areas

再生可能エネルギー、持続可能性、環境
燃料技術
凝縮系物理学
エネルギー工学および電力技術

UN SDG

この成果は、次の持続可能な開発目標に貢献しています

文献へのアクセス

10.1016/j.ijhydene.2014.09.003

他のファイルとリンク

引用スタイル

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title = "Photo-electrocatalytic H2 evolution on poly(2,2′-bithiophene) at neutral pH",

abstract = "Vapour phase polymerised (VPP) polybithiophene (PBTh) on glassy carbon is revealed to be an efficient photo-electrocatalytic electrode for the hydrogen evolution reaction (HER). An onset potential of-0.03 V vs SCE for the HER is observed on illumination using visible light in 0.1 mol L-1 phosphate buffer at pH 6.9, 600 mV lower in energy than E. Hydrogen evolution is confirmed using gas chromatography with a calculated faradaic efficiency of 34% when holding at a potential of-0.5 V. Importantly, this process occurs without platinum and under neutral aqueous conditions thus revealing a significant but overlooked application for PBTh: a potential low-cost cathode material for the splitting of water.",

keywords = "Conducting polymer, Hydrogen, Photo-electrocatalyst, Polythiophene, Renewable energy",

author = "Ng, {Chun Hin} and Orawan Winther-Jensen and Bartlomiej Kolodziejczyk and Ohlin, {C. Andr{\'e}} and {Winther Jensen}, Bjorn",

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AU - Ng, Chun Hin

AU - Winther-Jensen, Orawan

AU - Kolodziejczyk, Bartlomiej

AU - Ohlin, C. André

AU - Winther Jensen, Bjorn

PY - 2014/10/31

Y1 - 2014/10/31

N2 - Vapour phase polymerised (VPP) polybithiophene (PBTh) on glassy carbon is revealed to be an efficient photo-electrocatalytic electrode for the hydrogen evolution reaction (HER). An onset potential of-0.03 V vs SCE for the HER is observed on illumination using visible light in 0.1 mol L-1 phosphate buffer at pH 6.9, 600 mV lower in energy than E. Hydrogen evolution is confirmed using gas chromatography with a calculated faradaic efficiency of 34% when holding at a potential of-0.5 V. Importantly, this process occurs without platinum and under neutral aqueous conditions thus revealing a significant but overlooked application for PBTh: a potential low-cost cathode material for the splitting of water.

AB - Vapour phase polymerised (VPP) polybithiophene (PBTh) on glassy carbon is revealed to be an efficient photo-electrocatalytic electrode for the hydrogen evolution reaction (HER). An onset potential of-0.03 V vs SCE for the HER is observed on illumination using visible light in 0.1 mol L-1 phosphate buffer at pH 6.9, 600 mV lower in energy than E. Hydrogen evolution is confirmed using gas chromatography with a calculated faradaic efficiency of 34% when holding at a potential of-0.5 V. Importantly, this process occurs without platinum and under neutral aqueous conditions thus revealing a significant but overlooked application for PBTh: a potential low-cost cathode material for the splitting of water.

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KW - Photo-electrocatalyst

KW - Polythiophene

KW - Renewable energy

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