Metallic Cu2N Monolayer with Planar Tetracoordinated Nitrogen as a Promising Catalyst for CO2 Electroreduction

2022 ◽  
Author(s):  
Jingjing Jia ◽  
Zhongxu Wang ◽  
Yu Liu ◽  
Fengyu Li ◽  
Yongchen Shang ◽  
...  
Keyword(s):  
Carbon Dioxide ◽  
Co2 Emission ◽  
Carbon Dioxide Reduction ◽  
High Energy ◽  
Reduction Reaction ◽  
Great Promise ◽  
Grand Challenge ◽  
Co2 Electroreduction

The electrochemical carbon dioxide reduction reaction (CO2RR) holds great promise for mitigating CO2 emission and simultaneously generating high energy fuels. However, it remains a grand challenge to reduce CO2 to...

scholarly journals Micro-kinetic model of electrochemical carbon dioxide reduction over platinum in non-aqueous solvents

2020 ◽  
Vol 22 (16) ◽  
pp. 9040-9045
Author(s):  
Brian A. Rohr ◽  
Aayush R. Singh ◽  
Joseph A. Gauthier ◽  
Michael J. Statt ◽  
Jens K. Nørskov
Keyword(s):  
Carbon Dioxide ◽  
Kinetic Model ◽  
Carbon Dioxide Reduction ◽  
Reduction Reaction ◽  
Proton Donor ◽  
Theoretical Modeling ◽  
Donor Concentration

Theoretical modeling indicates that proton donor concentration and catalyst geometry control the selectivity to multicarbon products in the electrochemical carbon dioxide reduction reaction.

In-situ growth of Cu2O with honeycomb structure on roughed graphite paper for efficient electroreduction of CO2 to C2H4

2021 ◽  
Author(s):  
Zuoyu Yan ◽  
Xiuxiu Wang ◽  
Yang Tan ◽  
Aihua Liu ◽  
Fenqiang Luo ◽  
...  
Keyword(s):  
Carbon Dioxide ◽  
Cuprous Oxide ◽  
Carbon Dioxide Reduction ◽  
Honeycomb Structure ◽  
Reduction Reaction ◽  
In Situ Growth

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)...

Hierarchical three-dimensional copper selenide nanocubes microelectrodes for improved carbon dioxide reduction reaction

2021 ◽  
Author(s):  
Rajasekaran Elakkiya ◽  
Govindhan Maduraiveeran
Keyword(s):  
Carbon Dioxide ◽  
High Performance ◽  
Three Dimensional ◽  
Co2 Reduction ◽  
Value Added ◽  
Carbon Dioxide Reduction ◽  
Reduction Reaction ◽  
Earth Abundant ◽  
Carbon Dioxide Co2 ◽  
Co2 Reduction Reaction

Design of high-performance and Earth-abundant electrocatalysts for electrochemical carbon dioxide (CO2) reduction reaction (CO2RR) into fuels and value-added chemicals offers an emergent pathway for environment and energy sustainable concerns. Herein,...

Recent Advances in Photo-Assisted Electrocatalysts for Energy Conversion

2021 ◽  
Author(s):  
Haoyue Zhang ◽  
Fang Song
Keyword(s):  
Carbon Dioxide ◽  
Energy Conversion ◽  
Oxygen Reduction ◽  
Hydrogen Evolution ◽  
Hydrogen Evolution Reaction ◽  
Carbon Dioxide Reduction ◽  
Reduction Reaction ◽  
Recent Advances ◽  
Storage Technologies ◽  
Electrochemical Energy

Electrocatalysts are essential for the widespread of promising electrochemical energy conversion/storage technologies, where oxygen reduction/evolution reaction (ORR/OER), hydrogen evolution reaction (HER), and carbon dioxide reduction reaction (CRR) are intensively involved....

Alloy Nanocatalysts for the Electrochemical Oxygen Reduction (ORR) and the Direct Electrochemical Carbon Dioxide Reduction Reaction (CO 2 RR)

2018 ◽  
Vol 31 (31) ◽  
pp. 1805617 ◽  
Author(s):  
Cheonghee Kim ◽  
Fabio Dionigi ◽  
Vera Beermann ◽  
Xingli Wang ◽  
Tim Möller ◽  
...  
Keyword(s):  
Carbon Dioxide ◽  
Oxygen Reduction ◽  
Carbon Dioxide Reduction ◽  
Reduction Reaction ◽  
Electrochemical Oxygen

Enhancing CO2 reduction by suppressing hydrogen evolution with polytetrafluoroethylene protected copper nanoneedles

2020 ◽  
Vol 8 (31) ◽  
pp. 15936-15941 ◽  
Author(s):  
Pengda An ◽  
Lai Wei ◽  
Huangjingwei Li ◽  
Baopeng Yang ◽  
Kang Liu ◽  
...  
Keyword(s):  
Carbon Dioxide ◽  
Hydrogen Evolution ◽  
Co2 Reduction ◽  
Carbon Dioxide Reduction ◽  
Reduction Reaction

Enhanced carbon dioxide reduction reaction (CO2RR) with suppressed HER was achieved on polytetrafluoroethylene (PTFE) coated Cu nanoneedles (CuNNs).

Vitamin B12‐Immobilized Graphene Oxide for Efficient Electrocatalytic Carbon Dioxide Reduction Reaction

ChemSusChem ◽  
2020 ◽  
Vol 13 (21) ◽  
pp. 5620-5624
Author(s):  
Natarajan Saravanan ◽  
Mani Balamurugan ◽  
K. S. Shalini Devi ◽  
Ki Tae Nam ◽  
Annamalai Senthil Kumar
Keyword(s):  
Carbon Dioxide ◽  
Graphene Oxide ◽  
Vitamin B12 ◽  
Carbon Dioxide Reduction ◽  
Reduction Reaction

Heteroatom-doped C3N as a promising metal-free catalyst for a high-efficiency carbon dioxide reduction reaction

2020 ◽  
Vol 44 (27) ◽  
pp. 11824-11828 ◽  
Author(s):  
Tingting Zhao ◽  
Yu Tian ◽  
Likai Yan ◽  
Zhongmin Su
Keyword(s):  
Carbon Dioxide ◽  
Global Warming ◽  
High Efficiency ◽  
Carbon Dioxide Reduction ◽  
Reduction Reaction ◽  
Energy Crisis ◽  
Metal Free ◽  
Promising Strategy ◽  
Fuels And Chemicals

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

scholarly journals Gold-Like Activity, Copper-Like Selectivity of Heteroatomic Transition Metal Carbides (M2C) for Electrocatalytic Carbon Dioxide Reduction Reaction

2021 ◽  
Author(s):  
Mohammadreza Esmaeilirad ◽  
Artem Baskin ◽  
Alireza Kondori ◽  
Ana Sanz Matias ◽  
Jin Qian ◽  
...  
Keyword(s):  
Carbon Dioxide ◽  
Transition Metal ◽  
Density Functional ◽  
Choline Chloride ◽  
Fuel Efficiency ◽  
Photovoltaic Cell ◽  
Carbon Dioxide Reduction ◽  
Reduction Reaction ◽  
Transition Metal Carbide ◽  
Highly Active

Abstract An overarching challenge of the electrochemical carbon dioxide reduction reaction (eCO2RR) is finding an earth-abundant, highly active catalyst that selectively produces hydrocarbons at relatively low overpotentials. Here, we have studied the two-dimensional transition metal carbide (TMC) class of materials and found that di-tungsten carbide (W2C) nanoflakes exhibit maximum methane (CH4) current density of -421.63 mA/cm2 and a CH4 faradic efficiency of 82.7%±2% in a hybrid electrolyte of 3 M potassium hydroxide (KOH) and 2 M choline-chloride (CC). Powered by a triple junction photovoltaic cell, we have demonstrated a flow electrolyzer that uses humidified CO2 to produce CH4 in a 700-hours process under one sun illumination with a CO2RR energy efficiency of about 62.3% and a solar-to-fuel efficiency of 20.7%. Density functional theory (DFT) calculations reveal that dissociation of water, chemisorption of CO2 and cleavage of the C-O bond – the most energy consuming elementary steps in other catalysts such as copper – become nearly spontaneous at the W2C surface. This results in instantaneous formation of adsorbed CO – an important reaction intermediate – and an unlimited source of protons near the tungsten surface sites that are the main reasons for the observed superior activity, selectivity, and small potential.

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