scholarly journals Cooperative Catalysis of Nickel and Nickel Oxide for Efficient Reduction of CO2 to CH4

ChemCatChem ◽  
2019 ◽  
Vol 11 (4) ◽  
pp. 1295-1302 ◽  
Author(s):  
Qingyuan Bi ◽  
Xieyi Huang ◽  
Guoheng Yin ◽  
Tianyuan Chen ◽  
Xianlong Du ◽  
...  
Keyword(s):  
Nickel Oxide ◽  
Cooperative Catalysis ◽  
Efficient Reduction ◽  
Reduction Of Co2

Prominent Electron Penetration through Ultrathin Graphene Layer from FeNi Alloy for Efficient Reduction of CO2 to CO

ChemSusChem ◽  
2017 ◽  
Vol 10 (15) ◽  
pp. 3044-3048 ◽  
Author(s):  
Qingyuan Bi ◽  
Xin Wang ◽  
Feng Gu ◽  
Xianlong Du ◽  
Hongliang Bao ◽  
...  
Keyword(s):  
Graphene Layer ◽  
Efficient Reduction ◽  
Reduction Of Co2 ◽  
Feni Alloy

scholarly journals Photoreduction of Carbon Dioxide to Methanol over Copper Based Zeolitic Imidazolate Framework-8: A New Generation Photocatalyst

Catalysts ◽  
2018 ◽  
Vol 8 (12) ◽  
pp. 581 ◽  
Author(s):  
Sonam Goyal ◽  
Maizatul Shaharun ◽  
Chong Kait ◽  
Bawadi Abdullah ◽  
Mariam Ameen
Keyword(s):  
Photocatalytic Activity ◽  
Photoelectron Spectroscopy ◽  
Ammonium Hydroxide ◽  
Photocatalytic Reduction ◽  
Zeolitic Imidazolate Framework ◽  
X Ray ◽  
Efficient Reduction ◽  
Vis Spectroscopy ◽  
Metal Organic ◽  
Reduction Of Co2

The efficient reduction of CO2 into valuable products such as methanol, over metal-organic frameworks (MOFs) based catalyst, has received much attention. The photocatalytic reduction is considered the most economical method due to the utilization of solar energy. In this study, Copper (II)/Zeolitic Imidazolate Framework-8 (Cu/ZIF-8) catalysts were synthesized via a hydrothermal method for photocatalytic reduction of CO2 to methanol. The synthesized catalysts were characterized by X-ray Photoelectron Spectroscopy (XPS), Field Emission Scanning Electron Microscopy (FESEM) coupled with Energy Dispersive X-ray (EDX), Ultraviolet-visible (UV-vis) spectroscopy, and X-Ray Diffraction (XRD). The host ZIF-8, treated with 2 mmol copper prepared in 2M ammonium hydroxide solution showed the highest photocatalytic activity. The crystal structures of ZIF-8 and 2Cu/ZIF-8N2 catalysts were observed as cubic and orthorhombic, respectively and the XPS analysis confirmed the deposition of Cu (II) ions over ZIF-8 surface among all the prepared catalysts. The orthorhombic structure, nano-sized crystals, morphology and Cu loading of the 2Cu/ZIF-8N2 catalyst were the core factors to influence the photocatalytic activity. The yield of Methanol was found to be 35.82 µmol/L·g after 6 h of irradiations on 2Cu/ZIF-8N2 catalyst in the wavelength range between 530–580 nm. The copper-based ZIF-8 catalyst has proven as an alternative approach for the economical photocatalytic reduction of CO2 to CH3OH.

Incorporation of Nitrogen Defects for Efficient Reduction of CO2 via Two-Electron Pathway on Three-Dimensional Graphene Foam

Nano Letters ◽  
2015 ◽  
Vol 16 (1) ◽  
pp. 466-470 ◽  
Author(s):  
Jingjie Wu ◽  
Mingjie Liu ◽  
Pranav P. Sharma ◽  
Ram Manohar Yadav ◽  
Lulu Ma ◽  
...  
Keyword(s):  
Three Dimensional ◽  
Graphene Foam ◽  
Efficient Reduction ◽  
Reduction Of Co2

scholarly journals Solar-Driven Simultaneous Electrochemical CO2 Reduction and Water Oxidation Using Perovskite Solar Cells

Energies ◽  
2021 ◽  
Vol 15 (1) ◽  
pp. 270
Author(s):  
Jaehoon Chung ◽  
Nam Joong Jeon ◽  
Jun Hong Noh
Keyword(s):  
Solar Cells ◽  
Water Oxidation ◽  
Fuel Efficiency ◽  
Perovskite Solar Cells ◽  
Co2 Reduction ◽  
Electrode System ◽  
Efficient Reduction ◽  
Electrochemical Co2 Reduction ◽  
Products Analysis ◽  
Reduction Of Co2

The utilization of solar energy into electrochemical reduction systems has received considerable attention. Most of these attempts have been conducted in a single electrolyte without a membrane. Here, we report the system combined by the electrochemical CO2 reduction on the Au dendrite electrode and the water oxidation on the Co-Pi electrode with a Nafion membrane. An efficient reduction of CO2 to CO in the cathode using the proton from water oxidation in the anode is conducted using perovskite solar cells under 1 sun condition. The sustainable reaction condition is secured by balancing each reaction rate based on products analysis. Through this system, we collect reduction products such as CO and H2 and oxidation product, O2, separately. Employing separation of each electrode system and series-connected perovskite solar cells, we achieve 8% of solar to fuel efficiency with 85% of CO selectivity under 1 sun illumination.

scholarly journals Tuning the coordination number of Fe single atoms for the efficient reduction of CO2

2020 ◽  
Vol 22 (21) ◽  
pp. 7529-7536
Author(s):  
Huihuang Chen ◽  
Xu Guo ◽  
Xiangdong Kong ◽  
Yulin Xing ◽  
Yan Liu ◽  
...  
Keyword(s):  
Coordination Number ◽  
Single Atom ◽  
Single Atoms ◽  
Electrocatalytic Performance ◽  
Efficient Reduction ◽  
Co Conversion ◽  
Reduction Of Co2

The coordination number of Fe single-atom catalysts (Fe–N5/Fe–N6) significantly affects the electrocatalytic performance during CO2-to-CO conversion.

Coupling of methyl coenzyme M reduction with carbon dioxide activation in extracts of Methanobacterium thermoautotrophicum

1982 ◽  
Vol 152 (2) ◽  
pp. 840-847
Author(s):  
J A Romesser ◽  
R S Wolfe
Keyword(s):  
Carbon Dioxide ◽  
Co2 Reduction ◽  
Methanobacterium Thermoautotrophicum ◽  
Coenzyme M ◽  
Cell Extracts ◽  
Low Concentrations ◽  
Efficient Reduction ◽  
High Concentrations ◽  
Reduction Of Co2 ◽  
Stimulation Of

The stimulation of carbon dioxide reduction to methane by addition of 2-(methylthio)ethanesulfonate (CH3-S-CoM) to cell extracts of Methanobacterium thermoautotrophicum was investigated. Similar stimulation of CO2 reduction by CH3-S-CoM was found for cell extracts of Methanobacterium bryantii and Methanospirillum hungatei. The CH3-S-CoM requirement could be met by the methanogenic precursors formaldehyde, serine, or pyruvate, or by 2-(ethylthio)ethanesulfonate (CH3CH2-S-CoM), but not by other coenzyme M derivatives. Efficient reduction of CO2 to CH4 was favored by low concentrations of CH3-S-CoM and high concentrations of CO2. Sulfhydryl compounds were identified as effective inhibitors of CO2 reduction. Both an allosteric model and a free-radical model for the mechanism of CO2 activation and reduction are discussed.

A new Ni/Ni3(BO3)2/NiO heterostructured photocatalyst with efficient reduction of CO2 into CH4

2015 ◽  
Vol 142 ◽  
pp. 14-17 ◽  
Author(s):  
Yanlong Yu ◽  
Limei Guo ◽  
Han Cao ◽  
Yuekai Lv ◽  
Enjun Wang ◽  
...  
Keyword(s):  
Efficient Reduction ◽  
Reduction Of Co2

Highly selective and efficient reduction of CO2 to CO on cadmium electrodes derived from cadmium hydroxide

2018 ◽  
Vol 54 (43) ◽  
pp. 5450-5453 ◽  
Author(s):  
Jinbiao Shi ◽  
Dan Shao ◽  
Jianling Zhang ◽  
Dongxing Tan ◽  
Xiuniang Tan ◽  
...  
Keyword(s):  
Carbon Dioxide ◽  
Carbon Monoxide ◽  
High Selectivity ◽  
Efficient Reduction ◽  
Reduction Of Co2 ◽  
Cadmium Electrode

A non-noble cadmium electrode was synthesized via an electrolysis strategy, which can electroreduce carbon dioxide into carbon monoxide with high selectivity and efficiency.

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