scholarly journals Corrigendum to “Carbon dioxide reduction to multicarbon hydrocarbons and oxygenates on plant moss-derived, metal-free, in situ nitrogen-doped biochar” [Sci. Total Environ. 739 (2020) 140340]

2022 ◽  
Vol 807 ◽  
pp. 150798
Haoran Yuan ◽  
Xin Qian ◽  
Bo Luo ◽  
Lufeng Wang ◽  
Lifang Deng ◽  
2020 ◽  
Vol 1 (8) ◽  
pp. 100145 ◽  
Zheng Zhang ◽  
Liang Yu ◽  
Yunchuan Tu ◽  
Ruixue Chen ◽  
Lihui Wu ◽  

Zuoyu Yan ◽  
Xiuxiu Wang ◽  
Yang Tan ◽  
Aihua Liu ◽  
Fenqiang Luo ◽  

Metals and their alloys based electrocatalysts continue to attract great attention for electrochemical carbon dioxide reduction reaction (CO2RR). Herein, cuprous oxide (Cu2O) supported on N-doped flexible roughed graphite paper (NGP)...

2020 ◽  
Vol 8 (3) ◽  
pp. 1205-1211 ◽  
Qilong Wu ◽  
Jin Gao ◽  
Jianrui Feng ◽  
Qian Liu ◽  
Yunjie Zhou ◽  

A defect-derived metal-free electrocatalyst with appropriate CO2 adsorption for efficient carbon dioxide reduction.

2020 ◽  
Vol 44 (27) ◽  
pp. 11824-11828 ◽  
Tingting Zhao ◽  
Yu Tian ◽  
Likai Yan ◽  
Zhongmin Su

Converting CO2 into useful fuels and chemicals offers a promising strategy for mitigating the issues of energy crisis and global warming.

2020 ◽  
Vol MA2020-02 (63) ◽  
pp. 3223-3223
Jack Lee ◽  
Tristan Asset ◽  
Plamen Atanassov ◽  
Shelley D. Minteer

Catalysts ◽  
2019 ◽  
Vol 9 (8) ◽  
pp. 636 ◽  
Giane B. Damas ◽  
Caetano R. Miranda ◽  
Ricardo Sgarbi ◽  
James M. Portela ◽  
Mariana R. Camilo ◽  

The electrochemical reduction of carbon dioxide into carbon monoxide, hydrocarbons and formic acid has offered an interesting alternative for a sustainable energy scenario. In this context, Sn-based electrodes have attracted a great deal of attention because they present low price and toxicity, as well as high faradaic efficiency (FE) for formic acid (or formate) production at relatively low overpotentials. In this work, we investigate the role of tin oxide surfaces on Sn-based electrodes for carbon dioxide reduction into formate by means of experimental and theoretical methods. Cyclic voltammetry measurements of Sn-based electrodes, with different initial degree of oxidation, result in similar onset potentials for the CO2 reduction to formate, ca. −0.8 to −0.9 V vs. reversible hydrogen electrode (RHE), with faradaic efficiencies of about 90–92% at −1.25 V (vs. RHE). These results indicate that under in-situ conditions, the electrode surfaces might converge to very similar structures, with partially reduced or metastable Sn oxides, which serve as active sites for the CO2 reduction. The high faradaic efficiencies of the Sn electrodes brought by the etching/air exposition procedure is ascribed to the formation of a Sn oxide layer with optimized thickness, which is persistent under in situ conditions. Such oxide layer enables the CO2 “activation”, also favoring the electron transfer during the CO2 reduction reaction due to its better electric conductivity. In order to elucidate the reaction mechanism, we have performed density functional theory calculations on different slab models starting from the bulk SnO and Sn6O4(OH)4 compounds with focus on the formation of -OH groups at the water-oxide interface. We have found that the insertion of CO2 into the Sn-OH bond is thermodynamically favorable, leading to the stabilization of the tin-carbonate species, which is subsequently reduced to produce formic acid through a proton-coupled electron transfer process. The calculated potential for CO2 reduction (E = −1.09 V vs. RHE) displays good agreement with the experimental findings and, therefore, support the CO2 insertion onto Sn-oxide as a plausible mechanism for the CO2 reduction in the potential domain where metastable oxides are still present on the Sn surface. These results not only rationalize a number of literature divergent reports but also provide a guideline for the design of efficient CO2 reduction electrocatalysts.

2020 ◽  
Vol 56 (62) ◽  
pp. 8798-8801 ◽  
Meng-Jiao Sun ◽  
Zhi-Wei Gong ◽  
Jun-Dong Yi ◽  
Teng Zhang ◽  
Xiaodong Chen ◽  

Diatomic Ni2 clusters embedded in a nitrogen-doped carbon composite show high electrocatalytic carbon dioxide reduction activity.

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