TY - JOUR
T1 - Incorporation of nickel single atoms into carbon paper as self-standing electrocatalyst for CO2reduction
AU - Li, Simin
AU - Ceccato, Marcel
AU - Lu, Xiuyuan
AU - Frank, Sara
AU - Lock, Nina
AU - Roldan, Alberto
AU - Hu, Xin Ming
AU - Skrydstrup, Troels
AU - Daasbjerg, Kim
N1 - Funding Information:
We thank the Danish National Research Foundation (grant no. DNRF118) for generous nancial support. Simin Li (CSC No. 201806370200) and Xiuyuan Lu (CSC No. 201806370221) are nancially supported by a PhD scholarship from China Scholarship Council. We acknowledge Diamond Light Source for beamtime, Giannantonio Cibin for experimental support at B18, and DanScatt for nancial support. We also acknowledge computing time on the facilities of HPC Wales and the Advanced Research Computing @ Cardiff (ARCCA) at Cardiff University. X.-M. Hu acknowledges the support of Qilu Young Scholars program from Shandong University.
Publisher Copyright:
© The Royal Society of Chemistry.
Copyright:
Copyright 2021 Elsevier B.V., All rights reserved.
PY - 2021/1
Y1 - 2021/1
N2 - The design of selective and efficient catalysts for electrochemical CO2 reduction is highly desirable yet still challenging, in particular, if the aim is to make them binder-free and self-standing. Here, we report a new and straightforward strategy to incorporate Ni single atoms into a commercially available carbon paper to prepare a self-standing electrode. This is accomplished by consecutive acid activation, adsorption of Ni2+ ions, and pyrolysis steps. Structural characterizations and calculations based on density functional theory consistently suggest that the Ni single atoms are coordinated with three N and one S atoms on the carbon paper. When used for CO2 electroreduction, the electrode exhibits an optimal selectivity (91%), activity (3.4 mA cm-2), and stability (at least 14 h) for CO production in water at an overpotential of 660 mV. This report may inspire the design and incorporation of single atoms of various metal types into carbon papers, or other kinds of carbon substrates, for a wide range of electrocatalytic processes. This journal is
AB - The design of selective and efficient catalysts for electrochemical CO2 reduction is highly desirable yet still challenging, in particular, if the aim is to make them binder-free and self-standing. Here, we report a new and straightforward strategy to incorporate Ni single atoms into a commercially available carbon paper to prepare a self-standing electrode. This is accomplished by consecutive acid activation, adsorption of Ni2+ ions, and pyrolysis steps. Structural characterizations and calculations based on density functional theory consistently suggest that the Ni single atoms are coordinated with three N and one S atoms on the carbon paper. When used for CO2 electroreduction, the electrode exhibits an optimal selectivity (91%), activity (3.4 mA cm-2), and stability (at least 14 h) for CO production in water at an overpotential of 660 mV. This report may inspire the design and incorporation of single atoms of various metal types into carbon papers, or other kinds of carbon substrates, for a wide range of electrocatalytic processes. This journal is
UR - http://www.scopus.com/inward/record.url?scp=85100067263&partnerID=8YFLogxK
U2 - 10.1039/d0ta08433f
DO - 10.1039/d0ta08433f
M3 - Journal article
AN - SCOPUS:85100067263
SN - 2050-7488
VL - 9
SP - 1583
EP - 1592
JO - Journal of Materials Chemistry A
JF - Journal of Materials Chemistry A
IS - 3
ER -