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1. Photoelectrochemical reduction of carbon dioxide using Ge doped GaN nanowire photoanodes

Author

Yichen Wang, Bandar AlOtaibi, Faqrul A. Chowdhury, Shizhao Fan, Md G. Kibria, Lu Li, Chao-Jun Li, and Zetian Mi

Subjects
Biotechnology, TP248.13-248.65, Physics, QC1-999
Abstract

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.

Published
2015
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2. Photoelectrochemical reduction of carbon dioxide using Ge doped GaN nanowire photoanodes

Author

Zetian Mi, Bandar Alotaibi, Golam Kibria, Yichen Wang, Shizhao Fan, Faqrul A. Chowdhury, Chao-Jun Li, and Lu Li

Subjects
Materials science, Formic acid, lcsh:Biotechnology, Inorganic chemistry, chemistry.chemical_element, Germanium, Gallium nitride, 02 engineering and technology, 010402 general chemistry, 7. Clean energy, 01 natural sciences, law.invention, chemistry.chemical_compound, law, lcsh:TP248.13-248.65, General Materials Science, Compounds of carbon, chemistry.chemical_classification, General Engineering, Photoelectrochemical cell, 021001 nanoscience & nanotechnology, Cathode, lcsh:QC1-999, 0104 chemical sciences, Anode, chemistry, 13. Climate action, 0210 nano-technology, lcsh:Physics, Carbon monoxide
Abstract

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.

Published
2015

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