A highly efficient diatomic nickel electrocatalyst for CO2 reduction

2020 ◽  
Vol 56 (62) ◽  
pp. 8798-8801 ◽  
Author(s):  
Meng-Jiao Sun ◽  
Zhi-Wei Gong ◽  
Jun-Dong Yi ◽  
Teng Zhang ◽  
Xiaodong Chen ◽  
...  
Keyword(s):  
Carbon Dioxide ◽  
Co2 Reduction ◽  
Carbon Dioxide Reduction ◽  
Carbon Composite ◽  
Nitrogen Doped ◽  
Highly Efficient ◽  
Reduction Activity ◽  
Nitrogen Doped Carbon

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

scholarly journals Microwave-Assisted Solvothermal Synthesis of Chalcogenide Composite Photocatalyst and Its Photocatalytic CO2 Reduction Activity under Simulated Solar Light

Catalysts ◽  
2020 ◽  
Vol 10 (7) ◽  
pp. 789
Author(s):  
Gang-Juan Lee ◽  
Yu-Hong Hou ◽  
Hsin-Ting Huang ◽  
Wenmin Wang ◽  
Cong Lyu ◽  
...  
Keyword(s):  
Carbon Dioxide ◽  
Photocatalytic Activity ◽  
Co2 Reduction ◽  
Carbon Dioxide Reduction ◽  
Photoluminescence Intensity ◽  
Composite Photocatalyst ◽  
Microwave Assisted ◽  
Reduction Activity ◽  
Operation Conditions ◽  
Co Doped

A novel heterostructure consisting of Ru and Cu co-doped ZnS nanopowders (RCZS) into a MoS2-graphene hybrid (MSG) is successfully prepared by the microwave-assisted solvothermal approach. RCZS nanopowders are fabricated on the surface of MSG, which produces a nanoscale interfacial between RCZS and MSG. As the photo-excited electrons of RCZS can easily migrate to MoS2 through graphene by hindering the electron and hole (e– and h+) recombination, the photocatalytic activity could be improved by effective charge transfer. As RCZS are anchored onto the MSG, the photoluminescence intensity of the chalcogenide composite photocatalyst obviously decreases. In addition, a quaternary ruthenium and copper-based chalcogenide RCZS/MSG is able to improve the harvest and utilization of light. With the increase in the concentrations of Ru until 4 mol%, the band gap significantly decreases from 3.52 to 2.73 eV. At the same time, moderate modification by ruthenium can decrease the PL intensity compared to the pristine CZS/MSG sample, which indicates the enhancement of e– and h+ separation by Ru addition. The photocatalytic activity of as-synthesized chalcogenide composite photocatalysts is evaluated by the photocatalytic carbon dioxide reduction. Optimized operation conditions for carbon dioxide reduction have been performed, including the concentration of NaOH solution, the amount of RCZS/MSG photocatalyst, and the content of co-doped ruthenium. The doping of ruthenium would efficiently improve the performance of the photocatalytic activity for carbon dioxide reduction. The optimal conditions, such as the concentration of 2 M NaOH and the 0.5RCZS/MSG dosage of 0.05 g L–1, provide the maximum methane gas yield of 58.6 μmol h−1 g–1.

Achieving Highly Efficient, Selective, and Stable CO2 Reduction on Nitrogen-Doped Carbon Nanotubes

ACS Nano ◽  
2015 ◽  
Vol 9 (5) ◽  
pp. 5364-5371 ◽  
Author(s):  
Jingjie Wu ◽  
Ram Manohar Yadav ◽  
Mingjie Liu ◽  
Pranav P. Sharma ◽  
Chandra Sekhar Tiwary ◽  
...  
Keyword(s):  
Carbon Nanotubes ◽  
Co2 Reduction ◽  
Nitrogen Doped ◽  
Highly Efficient ◽  
Nitrogen Doped Carbon

scholarly journals Unveiling the Active Site of Metal-Free Nitrogen-doped Carbon for Electrocatalytic Carbon Dioxide Reduction

2020 ◽  
Vol 1 (8) ◽  
pp. 100145 ◽  
Author(s):  
Zheng Zhang ◽  
Liang Yu ◽  
Yunchuan Tu ◽  
Ruixue Chen ◽  
Lihui Wu ◽  
...  
Keyword(s):  
Carbon Dioxide ◽  
Active Site ◽  
Carbon Dioxide Reduction ◽  
Nitrogen Doped ◽  
Metal Free ◽  
Nitrogen Doped Carbon

Metal‐Modulated Nitrogen‐Doped Carbon Electrocatalyst for Efficient Carbon Dioxide Reduction

2020 ◽  
Vol 7 (5) ◽  
pp. 1142-1148 ◽  
Author(s):  
Zhen Peng ◽  
Yiyin Huang ◽  
Jian Wang ◽  
Rui Yang ◽  
Jiafang Xie ◽  
...  
Keyword(s):  
Carbon Dioxide ◽  
Carbon Dioxide Reduction ◽  
Nitrogen Doped ◽  
Nitrogen Doped Carbon

scholarly journals Volcano Trend in Electrocatalytic CO2 Reduction Activity over Atomically Dispersed Metal Sites on Nitrogen-Doped Carbon

ACS Catalysis ◽  
2019 ◽  
Vol 9 (11) ◽  
pp. 10426-10439 ◽  
Author(s):  
Jingkun Li ◽  
Paulina Pršlja ◽  
Tatsuya Shinagawa ◽  
Antonio José Martín Fernández ◽  
Frank Krumeich ◽  
...  
Keyword(s):  
Co2 Reduction ◽  
Nitrogen Doped ◽  
Reduction Activity ◽  
Nitrogen Doped Carbon

scholarly journals Nitrogen-doped Carbon Catalyst by Ultrasonic for Electrocatalytic CO2 Reduction

2020 ◽  
Vol 22 (3) ◽  
pp. 24-38
Author(s):  
Jianfeng Liu ◽  
Ting Wang ◽  
Zhenhai Zhang ◽  
Kai Ning ◽  
Shibin Yin ◽  
...  
Keyword(s):  
Carbon Dioxide ◽  
Catalytic Properties ◽  
Ultrasonic Method ◽  
Co2 Reduction ◽  
Electrocatalytic Reduction ◽  
Carbon Catalyst ◽  
Carbon Structure ◽  
Nitrogen Doped ◽  
Normal Method ◽  
Nitrogen Doped Carbon

AbstractThe electrocatalytic reduction of carbon dioxide into valued chemicals such as formic acid has the most promising potential in applying renewable energy for useful materials and mitigating the greenhouse effect. However, the studies still focus on developing catalysts with low price and high catalytic properties. In this study, nitrogen atoms were decorated into carbon structure by a unique ultrasonic method, then the nitrogen-doped carbon material was applied as catalyst in CO2 reduction, it exhibited excellent electrochemical activity, 4 times higher than the normal method. The improved activity should be attributed to the interaction between nitrogen and carbon atoms through analysis.

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