Photoelectrochemical CO2 Reduction to Acetate on Iron–Copper Oxide Catalysts

ACS Catalysis ◽  
2016 ◽  
Vol 7 (1) ◽  
pp. 177-180 ◽  
Author(s):  
Xin Yang ◽  
Elizabeth A. Fugate ◽  
Yutichai Mueanngern ◽  
L. Robert Baker
Keyword(s):  
Copper Oxide ◽  
Co2 Reduction ◽  
Oxide Catalysts ◽  
Iron Copper ◽  
Co2 Reduction To Acetate

Copper-Oxide-Coated Silver Nanodendrites for Photoelectrocatalytic CO2 Reduction to Acetate at Low Overpotential

2020 ◽  
Vol 3 (4) ◽  
pp. 3478-3486 ◽  
Author(s):  
Esteban Landaeta ◽  
Rafael A. Masitas ◽  
Thomas B. Clarke ◽  
Simon Rafacz ◽  
Darby A. Nelson ◽  
...  
Keyword(s):  
Copper Oxide ◽  
Co2 Reduction ◽  
Low Overpotential ◽  
Co2 Reduction To Acetate ◽  
Silver Nanodendrites ◽  
Photoelectrocatalytic Co2 Reduction

scholarly journals Enhanced C2 and C3 Product Selectivity in Electrochemical CO2 Reduction on Carbon-Doped Copper Oxide Catalysts Prepared by Deep Eutectic Solvent Calcination

Catalysts ◽  
2021 ◽  
Vol 11 (5) ◽  
pp. 542
Author(s):  
Melanie Iwanow ◽  
Johannes Seidler ◽  
Luciana Vieira ◽  
Manuela Kaiser ◽  
Daniel Van Opdenbosch ◽  
...  
Keyword(s):  
Thermal Treatment ◽  
Copper Oxide ◽  
Deep Eutectic Solvent ◽  
Co2 Reduction ◽  
Deep Eutectic Solvents ◽  
Oxide Catalysts ◽  
Product Concentration ◽  
Calcination Time ◽  
Carbon Doped ◽  
Electrochemical Co2 Reduction

Copper and its oxides are the main catalyst materials able to promote the formation of hydrocarbons from the electrocatalytic CO2 conversion. Herein, we describe a novel preparation method for carbon-doped copper oxide catalysts based on an oxidative thermal treatment of copper-containing deep eutectic solvents (DES). XRD and EDX analysis of the samples show that thermal treatment at 500 °C in air for a prolonged time (60 min) provides exclusively carbon-doped copper(II) oxide catalysts, whereas shorter calcination time leads to a mixture of less oxidized forms of copper (Cu2O and Cu0), CuO, and a higher carbon content from the DES. Chronoamperometry of the electrode containing the prepared materials in 0.5 M KHCO3 electrolyte show the reduction of CuO to less oxidized copper species. The materials prepared by the use of different DES, copper precursors and calcination times were used as electrocatalysts for the electrochemical CO2 reduction. Chemical analysis of the products reveals an enhanced selectivity toward C2 and C3 products for the catalyst prepared from the DES galactose-urea with copper nanoparticles and calcination for 60 min in air. The electrocatalytic activity of the prepared materials were compared to commercial CuO and showed a higher product concentration at −1.7 V vs. Ag/AgCl, with formation rates of 7.4, 6.0, and 10.4 µmol h−1 cm−2 for ethanol, n-propanol, and ethylene, respectively.

ChemInform Abstract: FTIR Study of the Effects of Sulfur Poisons on NO Adsorption on Supported Copper Oxide Catalysts.

ChemInform ◽  
2010 ◽  
Vol 26 (17) ◽  
pp. no-no
Author(s):  
M. B. PADLEY ◽  
C. H. ROCHESTER ◽  
G. J. HUTCHINGS ◽  
F. KING
Keyword(s):  
Copper Oxide ◽  
Oxide Catalysts ◽  
No Adsorption ◽  
Ftir Study

Methanol oxidation on copper-oxide catalysts

1979 ◽  
Vol 11 (2) ◽  
pp. 125-128 ◽  
Author(s):  
Z. R. Ismagilov ◽  
N. M. Dobrynkin ◽  
V. V. Popovskii
Keyword(s):  
Copper Oxide ◽  
Methanol Oxidation ◽  
Oxide Catalysts

Characterization and Catalytic Functionalities of Copper Oxide Catalysts Supported on Zirconia

2007 ◽  
Vol 111 (3) ◽  
pp. 543-550 ◽  
Author(s):  
Komandur V. R. Chary ◽  
Guggilla Vidya Sagar ◽  
Chakravarthula S. Srikanth ◽  
Vattikonda Venkat Rao
Keyword(s):  
Copper Oxide ◽  
Oxide Catalysts

A computational exploration of CO2 reduction via CO dimerization on mixed-valence copper oxide surface

2018 ◽  
Vol 20 (25) ◽  
pp. 16906-16909 ◽  
Author(s):  
Chun-Chih Chang ◽  
Elise Y. Li ◽  
Ming-Kang Tsai
Keyword(s):  
Copper Oxide ◽  
Mixed Valence ◽  
Co2 Reduction ◽  
Electron Localization Function ◽  
Oxide Surface ◽  
Electron Localization ◽  
Localization Function ◽  
Computational Exploration

The electron-localization function plots of OCCO adsorbed on Ov–CuO(111), Ov–Cu4O3(202) and Cu2O(111) surfaces.

scholarly journals In situ spectroscopic monitoring of CO2 reduction at copper oxide electrode

2017 ◽  
Vol 197 ◽  
pp. 517-532 ◽  
Author(s):  
Liying Wang ◽  
Kalyani Gupta ◽  
Josephine B. M. Goodall ◽  
Jawwad A. Darr ◽  
Katherine B. Holt
Keyword(s):  
Infrared Spectroscopy ◽  
Copper Oxide ◽  
Photoelectron Spectroscopy ◽  
Co2 Reduction ◽  
Modified Electrodes ◽  
Starting Material ◽  
Ex Situ ◽  
Spectroscopic Monitoring ◽  
Carbonate Species

Copper oxide modified electrodes were investigated as a function of applied electrode potential using in situ infrared spectroscopy and ex situ Raman and X-ray photoelectron spectroscopy. In deoxygenated KHCO3 electrolyte bicarbonate and carbonate species were found to adsorb to the electrode during reduction and the CuO was reduced to Cu(i) or Cu(0) species. Carbonate was incorporated into the structure and the CuO starting material was not regenerated on cycling to positive potentials. In contrast, in CO2 saturated KHCO3 solution, surface adsorption of bicarbonate and carbonate was not observed and adsorption of a carbonato-species was observed with in situ infrared spectroscopy. This species is believed to be activated, bent CO2. On cycling to negative potentials, larger reduction currents were observed in the presence of CO2; however, less of the charge could be attributed to the reduction of CuO. In the presence of CO2 CuO underwent reduction to Cu2O and potentially Cu, with no incorporation of carbonate. Under these conditions the CuO starting material could be regenerated by cycling to positive potentials.

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