Selective CO Production by Photoelectrochemical CO2 Reduction in an Aqueous Solution with Cobalt-Based Molecular Redox Catalysts

2020 ◽  
Vol 12 (37) ◽  
pp. 41644-41648
Author(s):  
Yong Wang ◽  
Yong Zhu ◽  
Licheng Sun ◽  
Fei Li
Keyword(s):  
Aqueous Solution ◽  
Co2 Reduction ◽  
Redox Catalysts

Photocatalytic CO2 reduction using water as an electron donor by a powdered Z-scheme system consisting of metal sulfide and an RGO–TiO2 composite

2017 ◽  
Vol 198 ◽  
pp. 397-407 ◽  
Author(s):  
Tomoaki Takayama ◽  
Ko Sato ◽  
Takehiro Fujimura ◽  
Yuki Kojima ◽  
Akihide Iwase ◽  
...  
Keyword(s):  
Aqueous Solution ◽  
Graphene Oxide ◽  
Visible Light ◽  
Water Splitting ◽  
Electron Donor ◽  
Visible Light Irradiation ◽  
Co2 Reduction ◽  
Metal Sulfide ◽  
Electron Donors ◽  
Reduced Graphene

CuGaS2, (AgInS2)x–(ZnS)2−2x, Ag2ZnGeS4, Ni- or Pb-doped ZnS, (ZnS)0.9–(CuCl)0.1, and ZnGa0.5In1.5S4 showed activities for CO2 reduction to form CO and/or HCOOH in an aqueous solution containing K2SO3 and Na2S as electron donors under visible light irradiation. Among them, CuGaS2 and Ni-doped ZnS photocatalysts showed relatively high activities for CO and HCOOH formation, respectively. CuGaS2 was applied in a powdered Z-scheme system combining with reduced graphene oxide (RGO)-incorporated TiO2 as an O2-evolving photocatalyst. The powdered Z-scheme system produced CO from CO2 in addition to H2 and O2 due to water splitting. Oxygen evolution with an almost stoichiometric amount indicates that water was consumed as an electron donor in the Z-schematic CO2 reduction. Thus, we successfully demonstrated CO2 reduction of artificial photosynthesis using a simple Z-scheme system in which two kinds of photocatalyst powders (CuGaS2 and an RGO–TiO2 composite) were only dispersed in water under 1 atm of CO2.

Electrochemical CO2 Reduction to Hydrocarbons on a Heterogeneous Molecular Cu Catalyst in Aqueous Solution

2016 ◽  
Vol 138 (26) ◽  
pp. 8076-8079 ◽  
Author(s):  
Zhe Weng ◽  
Jianbing Jiang ◽  
Yueshen Wu ◽  
Zishan Wu ◽  
Xiaoting Guo ◽  
...  
Keyword(s):  
Aqueous Solution ◽  
Co2 Reduction ◽  
Electrochemical Co2 Reduction ◽  
Cu Catalyst

Photocathode Characteristics of a Spray-Deposited Cu2ZnGeS4 Thin Film for CO2 Reduction in a CO2-Saturated Aqueous Solution

2019 ◽  
Vol 2 (9) ◽  
pp. 6911-6918 ◽  
Author(s):  
Shigeru Ikeda ◽  
Shotaro Fujikawa ◽  
Takashi Harada ◽  
Thi Hiep Nguyen ◽  
Shuji Nakanishi ◽  
...  
Keyword(s):  
Thin Film ◽  
Aqueous Solution ◽  
Co2 Reduction ◽  
Saturated Aqueous Solution

scholarly journals Electrocatalytic CO2 reduction with a membrane supported manganese catalyst in aqueous solution

2014 ◽  
Vol 50 (84) ◽  
pp. 12698-12701 ◽  
Author(s):  
James J. Walsh ◽  
Gaia Neri ◽  
Charlotte L. Smith ◽  
Alexander J. Cowan
Keyword(s):  
Aqueous Solution ◽  
Aqueous Electrolyte ◽  
Co2 Reduction ◽  
Nafion Membranes

[Mn(bpy)(CO)3Br]/MWCNT/Nafion membranes are active heterogeneous electrocatalysts for CO2 reduction to CO in aqueous electrolyte at relatively low overpotentials.

scholarly journals Visible-light-driven CO2 reduction on a hybrid photocatalyst consisting of a Ru(ii) binuclear complex and a Ag-loaded TaON in aqueous solutions

2016 ◽  
Vol 7 (7) ◽  
pp. 4364-4371 ◽  
Author(s):  
Akinobu Nakada ◽  
Takuya Nakashima ◽  
Keita Sekizawa ◽  
Kazuhiko Maeda ◽  
Osamu Ishitani
Keyword(s):  
Aqueous Solution ◽  
Aqueous Solutions ◽  
Visible Light ◽  
Visible Light Irradiation ◽  
Binuclear Complex ◽  
Co2 Reduction ◽  
Light Irradiation ◽  
Photocatalytic System ◽  
Visible Light Driven ◽  
Hybrid Photocatalyst

A hybrid photocatalytic system consisting of a Ru(ii) binuclear complex and Ag-loaded TaON can reduce CO2 to HCOOH by visible light irradiation even in aqueous solution (TONHCOOH = 750, ΦHCOOH = 0.48%).

scholarly journals Pyrene-functionalized polymeric carbon nitride with promoted aqueous–organic biphasic photocatalytic CO2 reduction

2019 ◽  
Vol 7 (13) ◽  
pp. 7373-7379 ◽  
Author(s):  
Xuezhong Gong ◽  
Sijia Yu ◽  
Meili Guan ◽  
Xianglin Zhu ◽  
Can Xue
Keyword(s):  
Aqueous Solution ◽  
Organic Phase ◽  
Carbon Nitride ◽  
Co2 Reduction ◽  
Alkene Oxidation ◽  
Polymeric Carbon

Covalently grafting pyrene groups on polymeric carbon nitride enables photocatalytic CO2 reduction in aqueous solution with simultaneous alkene oxidation in organic phase.

Efficient photocatalytic CO2 reduction over Co(II) species modified CdS in aqueous solution

2018 ◽  
Vol 226 ◽  
pp. 252-257 ◽  
Author(s):  
Guixia Zhao ◽  
Wei Zhou ◽  
Yubing Sun ◽  
Xiangke Wang ◽  
Huimin Liu ◽  
...  
Keyword(s):  
Aqueous Solution ◽  
Co2 Reduction
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