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...

scholarly journals FeNC catalysts for CO2 electroreduction to CO: effect of nanostructured carbon supports

2019 ◽  
Vol 3 (7) ◽  
pp. 1833-1840 ◽  
Author(s):  
Dilan Karapinar ◽  
Ngoc-Huan Tran ◽  
Domitille Giaume ◽  
Nastaran Ranjbar ◽  
Frédéric Jaouen ◽  
...  
Keyword(s):  
Carbon Nanofibers ◽  
Current Density ◽  
Carbon Materials ◽  
Nanostructured Carbon ◽  
Carbon Supports ◽  
Nitrogen Doped ◽  
Co2 Electroreduction ◽  
Nitrogen Doped Carbon

Iron- and nitrogen-doped carbon materials (FeNC) are excellent catalysts for CO2 electroreduction to CO. Current density and selectivity can be significantly improved by mixing FeNC with carbon materials such as carbon nanofibers.

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.

Engineering Mn Atomic Sites in Multi-Dimensional Nitrogen-Doped Carbon for Highly Efficient Oxygen Reduction Reaction

2022 ◽  
Author(s):  
Huixin Ma ◽  
Daijie Deng ◽  
Honghui Zhang ◽  
Feng Chen ◽  
Junchao Qian ◽  
...  
Keyword(s):  
Catalytic Activity ◽  
Oxygen Reduction Reaction ◽  
Oxygen Reduction ◽  
Reduction Reaction ◽  
Single Atom ◽  
Two Dimensional ◽  
One Dimensional ◽  
Nitrogen Doped ◽  
Half Wave ◽  
Nitrogen Doped Carbon

Nitrogen-coordinated single-atom manganese in multi-dimensional nitrogen-doped carbon electrocatalysts (Mn-NC) was successful constructed by combing two-dimensional nanosheets and one-dimensional nanofibers. The Mn-NC exhibited excellent oxygen reduction reaction catalytic activity with half-wave...

Metal-Nitrogen-doped carbon single-atom electrocatalysts for CO2 electroreduction

2021 ◽  
pp. 108986
Author(s):  
Liping Huang ◽  
Wenyao Li ◽  
Min Zeng ◽  
Guanjie He ◽  
Paul R. Shearing ◽  
...  
Keyword(s):  
Single Atom ◽  
Nitrogen Doped ◽  
Co2 Electroreduction ◽  
Nitrogen Doped Carbon

scholarly journals Single-atom-Ni-decorated, nitrogen-doped carbon layers for efficient electrocatalytic CO2 reduction reaction

2020 ◽  
Vol 116 ◽  
pp. 106758 ◽  
Author(s):  
Chao Zhang ◽  
Zhongheng Fu ◽  
Qi Zhao ◽  
Zhiguo Du ◽  
Ruifeng Zhang ◽  
...  
Keyword(s):  
Co2 Reduction ◽  
Reduction Reaction ◽  
Single Atom ◽  
Nitrogen Doped ◽  
Nitrogen Doped Carbon ◽  
Co2 Reduction Reaction
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