Operando evidence of Cu+ stabilization via a single-atom modifier for CO2 electroreduction

2020 ◽  
Vol 8 (48) ◽  
pp. 25970-25977 ◽  
Author(s):  
Wei Zhang ◽  
Peng He ◽  
Chao Wang ◽  
Tao Ding ◽  
Tao Chen ◽  
...  
Keyword(s):  
Single Atom ◽  
Stable Intermediate ◽  
Co Conversion ◽  
Co2 Electroreduction

Single-atom Sn modified Cu2O nanosheets with stable intermediate Cu+ species for efficient CO2-to-CO conversion proved by operando XAFS.

scholarly journals Electronic regulation of Ni single atom by confined Ni nanoparticles for fast and energy-efficient CO2 electroreduction

2021 ◽  
Author(s):  
Wenhao Ren ◽  
Xin Tan ◽  
Chen Jia ◽  
Anna Krammer ◽  
Qian Sun ◽  
...  
Keyword(s):  
Active Sites ◽  
Cell Voltage ◽  
Single Atom ◽  
Ni Nanoparticles ◽  
Precious Metal Catalysts ◽  
Co Conversion ◽  
Co2 Electroreduction ◽  
Enhanced Adsorption ◽  
Direct Solid ◽  
Nanoparticle Catalyst

Abstract Electrocatalytic CO2 to CO conversion is approaching the industrial benchmark. Currently, Au electrodes show the best performance, whereas non-precious metal catalysts exhibit inferior activity. Here we show a densely populated Ni single-atom on nanoparticle catalyst (NiSA/NP) via direct solid-sate pyrolysis, where Ni nanoparticles donate electrons to Ni(i)-N-C sites via carbon nanotubes network, achieves a high CO current of 352 mA cm− 2 at -0.55 V vs RHE in an alkaline flow cell. When coupled with a NiFe-based oxygen evolution anode into a zero-gap membrane electrolyser, it delivers an industrial-relevant CO current of 310 mA cm− 2 at a low cell voltage of -2.3 V, corresponding to an overall energy efficiency of 57%. The superior CO2 electroreduction performance is attributed to the enhanced adsorption of key intermediate COOH* on electron-rich Ni single atom, together with the dense active sites.

scholarly journals Electronic regulation of Ni single atom by confined Ni nanoparticles for fast and energy-efficient CO2 electroreduction

2021 ◽  
Author(s):  
Wenhao Ren ◽  
Xin Tan ◽  
Chen Jia ◽  
Anna Krammer ◽  
Qian Sun ◽  
...  
Keyword(s):  
Active Sites ◽  
Cell Voltage ◽  
Single Atom ◽  
Ni Nanoparticles ◽  
Precious Metal Catalysts ◽  
Co Conversion ◽  
Co2 Electroreduction ◽  
Enhanced Adsorption ◽  
Direct Solid ◽  
Nanoparticle Catalyst

Abstract Electrocatalytic CO2 to CO conversion is approaching the industrial benchmark. Currently, Au electrodes show the best performance, whereas non-precious metal catalysts exhibit inferior activity. Here we show a densely populated Ni single-atom on nanoparticle catalyst (NiSA/NP) via direct solid-sate pyrolysis, where Ni nanoparticles donate electrons to Ni(i)-N-C sites via carbon nanotubes network, achieves a high CO current of 352 mA cm−2 at -0.55 V vs RHE in an alkaline flow cell. When coupled with a NiFe-based oxygen evolution anode into a zero-gap membrane electrolyser, it delivers an industrial-relevant CO current of 310 mA cm−2 at a low cell voltage of -2.3 V, corresponding to an overall energy efficiency of 57%. The superior CO2 electroreduction performance is attributed to the enhanced adsorption of key intermediate COOH* on electron-rich Ni single atom, together with the dense active sites.

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

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...

Universal domino reaction strategy for mass production of single-atom metal-nitrogen catalysts for boosting CO2 electroreduction

Nano Energy ◽  
2021 ◽  
Vol 82 ◽  
pp. 105689
Author(s):  
Xingpu Wang ◽  
Shaosong Ding ◽  
Tong Yue ◽  
Ying Zhu ◽  
Mingwei Fang ◽  
...  
Keyword(s):  
Mass Production ◽  
Single Atom ◽  
Domino Reaction ◽  
Co2 Electroreduction

Universal Principle to Describe Reactivity and Selectivity of CO2 Electroreduction on Transition Metals and Single-Atom Catalysts

2020 ◽  
Vol 124 (47) ◽  
pp. 25898-25906
Author(s):  
Xin Guan ◽  
Chenxu Zhao ◽  
Xin Liu ◽  
Shanping Liu ◽  
Wang Gao ◽  
...  
Keyword(s):  
Transition Metals ◽  
Single Atom ◽  
Universal Principle ◽  
Co2 Electroreduction

Boosting CO2-to-CO conversion on a robust single-atom copper decorated carbon catalyst by enhancing intermediate binding strength

2021 ◽  
Author(s):  
Shixia Chen ◽  
Yuewei Li ◽  
Zhuogang Bu ◽  
Fangqi Yang ◽  
Junhui Luo ◽  
...  
Keyword(s):  
Hydrogen Bond ◽  
Energy Barrier ◽  
Single Atom ◽  
Carbon Catalyst ◽  
Binding Strength ◽  
Co Conversion

The hydrogen-bond strengthen the *COOH adsorption and lower the CO2(g)→*COOH energy barrier on Cu–N–C electrocatalyst, simultaneously yielding a high CO FE and TOF.

scholarly journals A Mn-N3 single-atom catalyst embedded in graphitic carbon nitride for efficient CO2 electroreduction

2020 ◽  
Vol 11 (1) ◽  
Author(s):  
Jiaqi Feng ◽  
Hongshuai Gao ◽  
Lirong Zheng ◽  
Zhipeng Chen ◽  
Shaojuan Zeng ◽  
...  
Keyword(s):  
Carbon Nitride ◽  
Graphitic Carbon ◽  
Graphitic Carbon Nitride ◽  
Single Atom ◽  
Co2 Electroreduction

Discovery of main group single Sb–N4 active sites for CO2 electroreduction to formate with high efficiency

2020 ◽  
Vol 13 (9) ◽  
pp. 2856-2863 ◽  
Author(s):  
Zhuoli Jiang ◽  
Tao Wang ◽  
Jiajing Pei ◽  
Huishan Shang ◽  
Danni Zhou ◽  
...  
Keyword(s):  
Active Sites ◽  
High Efficiency ◽  
Main Group ◽  
Single Atom ◽  
Carbon Nanosheets ◽  
Co2 Electroreduction

We discover that an Sb single atom material consisting of Sb–N4 moieties anchored on N-doped carbon nanosheets can serve as a CO2RR catalyst to produce formate with high efficiency.

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