Photoelectrochemical reduction of carbon dioxide using Ge doped GaN nanowire photoanodes | Zendy

Yichen Wang | Zendy; Bandar AlOtaibi | Zendy; Faqrul A. Chowdhury | Zendy; Shizhao Fan | Zendy; Md Golam Kibria | Zendy; Lü Li | Zendy; ChaoJun Li | Zendy; Zetian Mi | Zendy

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Photoelectrochemical reduction of carbon dioxide using Ge doped GaN nanowire photoanodes

Author(s) -

Yichen Wang,

Bandar AlOtaibi,

Faqrul A. Chowdhury,

Shizhao Fan,

Md Golam Kibria,

Lü Li,

ChaoJun Li,

Zetian Mi

Publication year - 2015

Publication title -

apl materials

Language(s) - English

Resource type - Journals

SCImago Journal Rank - 1.571

H-Index - 60

ISSN - 2166-532X

DOI - 10.1063/1.4935307

Subject(s) - materials science , formic acid , electrochemical reduction of carbon dioxide , faraday efficiency , nanowire , anode , photoelectrochemical cell , cathode , germanium , inorganic chemistry , methane , doping , photoelectrochemistry , gallium nitride , electrochemistry , carbon monoxide , electrode , optoelectronics , nanotechnology , catalysis , electrolyte , silicon , chemistry , layer (electronics) , biochemistry , organic chemistry , chromatography

We report on the direct conversion of carbon dioxide (CO₂) in a photoelectrochemical cell consisting of germanium doped gallium nitride nanowire anode and copper (Cu) cathode. Various products including methane (CH₄), carbon monoxide (CO), and formic acid (HCOOH) were observed under light illumination. A Faradaic efficiency of ∼10% was measured for HCOOH. Furthermore, this photoelectrochemical system showed enhanced stability for 6 h CO₂ reduction reaction on low cost, large area Si substrates

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