Single-atom catalysts on supported silicomolybdic acid for CO2 electroreduction: a DFT prediction

2022 ◽  
Author(s):  
Concong Zhao ◽  
Xiao-Fang Su ◽  
Shuo Wang ◽  
Yu Tian ◽  
Li-Kai Yan ◽  
...  
Keyword(s):  
Reduction Reaction ◽  
Single Atom ◽  
Activation Barriers ◽  
Co2 Electroreduction ◽  
New Frontier

Electrocatalytic CO2 reduction reaction (CO2RR) is an effective way to convert CO2 into fuels which relies on the efficient catalysts due to extreme reaction activation barriers. As a new frontier...

Understanding the role of axial O in CO2 electroreduction on NiN4 single-atom catalysts via simulations in realistic electrochemical environment

2021 ◽  
Author(s):  
Xu Hu ◽  
Sai Yao ◽  
Letian Chen ◽  
Xu Zhang ◽  
Menggai Jiao ◽  
...  
Keyword(s):  
Sustainable Development ◽  
Heterogeneous Catalysis ◽  
Co2 Reduction ◽  
Reduction Reaction ◽  
Single Atom ◽  
Electrochemical Co2 Reduction ◽  
Co2 Electroreduction ◽  
Important Approach ◽  
Co2 Reduction Reaction

Electrochemical CO2 reduction reaction (CO2RR) is a very important approach to realize sustainable development. Single-atom catalysts show advantages in both homogeneous and heterogeneous catalysis, and considerable progress has been made...

A generalized amino-modification strategy to boost CO2 electroreduction current density of single-atom catalysts to industrial application level

2020 ◽  
Author(s):  
Zhipeng Chen ◽  
Xinxin Zhang ◽  
Wei Liu ◽  
Mingyang Jiao ◽  
Kaiwen Mou ◽  
...  
Keyword(s):  
Electronic Structure ◽  
Current Density ◽  
Reduction Reaction ◽  
Single Atom ◽  
Potential Range ◽  
Carbon Supports ◽  
Co2 Electroreduction ◽  
Operating Potential ◽  
Ingenious Method ◽  
Industrial Level

Abstract Although Faraday efficiency (FE) for CO production of single-atom catalysts immobilized on nitrogen-doped carbon supports (M-N/C) for CO2 electrocatalytic reduction reaction (CO2RR) is generally over 90%, M-N/C catalysts demonstrate a poor reaction current density, much worse than the current density of industrial level. Herein, we first report a generalized strategy of amino-functionalized carbon supports to regulate electronic structure of M-N/C catalysts (M=Ni, Fe, Zn) to significantly increase current density of CO production. The aminated Ni single-atom catalyst achieves a remarkable CO partial current density of 447.6 mA cm-2 (a total current density over 500 mA cm-2) with a nearly 90% CO FE at a moderate overpotential of 0.89 V, and especially CO FE can be maintained over 85% in a wide operating potential range from -0.5 V to -1.0 V. DFT calculations and experimental researches demonstrate that the superior activity is attributed to enhanced adsorption energies of CO2* and COOH* intermediates caused by the change of electronic structure of aminated catalysts. This work provides an ingenious method for significantly increasing current density at industrial-relevant level of single-atom catalysts for CO2RR.

Amination strategy to boost CO2 electroreduction current density of M-N/C single-atom catalysts to industrial application level

2021 ◽  
Author(s):  
Zhipeng Chen ◽  
Xinxin Zhang ◽  
Wei Liu ◽  
Mingyang Jiao ◽  
Kaiwen Mou ◽  
...  
Keyword(s):  
Current Density ◽  
Industrial Application ◽  
Reduction Reaction ◽  
Single Atom ◽  
Electrocatalytic Reduction ◽  
Carbon Supports ◽  
Nitrogen Doped ◽  
Co2 Electroreduction ◽  
Nitrogen Doped Carbon

Although Faraday efficiency (FE) for CO production of single-atom catalysts immobilized on nitrogen-doped carbon supports (M-N/C) for CO2 electrocatalytic reduction reaction (CO2RR) is generally over 90%, M-N/C catalysts demonstrate a...

Mechanistic Understanding and Design of Non-noble Metal-based Single-atom Catalysts Supported on Two-dimensional Materials for CO2 Electroreduction

2021 ◽  
Author(s):  
Ya Huang ◽  
Faisal Rehman ◽  
Mohsen Tamtaji ◽  
Xuning Li ◽  
Yanqiang Huang ◽  
...  
Keyword(s):  
Low Cost ◽  
Co2 Reduction ◽  
Reduction Reaction ◽  
Single Atom ◽  
Two Dimensional ◽  
Co2 Electroreduction ◽  
Wide Range ◽  
Two Dimensional Materials ◽  
Earth Abundant ◽  
Co2 Reduction Reaction

Single-atom catalysts (SACs) composing of low-cost, earth-abundant metals, with two-dimensional material supports have displayed great potential in a wide range of electrochemical reactions, including CO2 reduction reaction (CO2RR) to convert...

scholarly journals Fabricating high-loading Fe-N4 single-atom catalysts for oxygen reduction reaction by carbon-assisted pyrolysis of metal complexes

2021 ◽  
Vol 42 (5) ◽  
pp. 753-761
Author(s):  
Jun-Sheng Jiang ◽  
He-Lei Wei ◽  
Ai-Dong Tan ◽  
Rui Si ◽  
Wei-De Zhang ◽  
...  
Keyword(s):  
Oxygen Reduction Reaction ◽  
Metal Complexes ◽  
Oxygen Reduction ◽  
Reduction Reaction ◽  
High Loading ◽  
Single Atom

Engineering Ag–Nx Single-Atom Sites on Porous Concave N-Doped Carbon for Boosting CO2 Electroreduction

2021 ◽  
Author(s):  
Rui Sui ◽  
Jiajing Pei ◽  
Jinjie Fang ◽  
Xuejiang Zhang ◽  
Yufeng Zhang ◽  
...  
Keyword(s):  
Single Atom ◽  
Co2 Electroreduction

Double Boosting Single Atom Fe-N4 Sites for High Efficiency O2 and CO2 Electroreduction

Carbon ◽  
2021 ◽  
Author(s):  
Huijuan Yang ◽  
Xingpu Wang ◽  
ShengBao Wang ◽  
Pengyang Zhang ◽  
Chi Xiao ◽  
...  
Keyword(s):  
High Efficiency ◽  
Single Atom ◽  
Co2 Electroreduction
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