TY - JOUR
T1 - Large-Scale and Highly Selective CO 2 Electrocatalytic Reduction on Nickel Single-Atom Catalyst
AU - Zheng, Tingting
AU - Jiang, Kun
AU - Ta, Na
AU - Hu, Yongfeng
AU - Zeng, Jie
AU - Liu, Jingyue
AU - Wang, Haotian
N1 - Funding Information:
This work was supported by the Rowland Fellows Program at Rowland Institute , Harvard University. The Center for Nanoscale Systems (CNS) is part of Harvard University. This research used resources of the Canadian Light Source, which is supported by NSERC , the National Research Council Canada , the Canadian Institutes of Health Research , the Province of Saskatchewan , Western Economic Diversification Canada , and the University of Saskatchewan . J.L. and N.T. were supported by the National Science Foundation under CHE-1465057 , and gratefully acknowledge the use of facilities within the John M. Cowley Center for High Resolution Electron Microscopy at Arizona State University. T.Z. and N.T. acknowledge funding from the China Scholarship Council (CSC) ( 201706340152 and 201704910441 , respectively). J.Z. acknowledges support from MOST of China ( 2014CB932700 ) and NSFC ( 21573206 ). This work was performed in part at the CNS, a member of the National Nanotechnology Infrastructure Network (NNIN), which is supported by the National Science Foundation under NSF award no. ECS-0335765. H.W. acknowledges support from Rice University .
Funding Information:
This work was supported by the Rowland Fellows Program at Rowland Institute, Harvard University. The Center for Nanoscale Systems (CNS) is part of Harvard University. This research used resources of the Canadian Light Source, which is supported by NSERC, the National Research Council Canada, the Canadian Institutes of Health Research, the Province of Saskatchewan, Western Economic Diversification Canada, and the University of Saskatchewan. J.L. and N.T. were supported by the National Science Foundation under CHE-1465057, and gratefully acknowledge the use of facilities within the John M. Cowley Center for High Resolution Electron Microscopy at Arizona State University. T.Z. and N.T. acknowledge funding from the China Scholarship Council (CSC) (201706340152 and 201704910441, respectively). J.Z. acknowledges support from MOST of China (2014CB932700) and NSFC (21573206). This work was performed in part at the CNS, a member of the National Nanotechnology Infrastructure Network (NNIN), which is supported by the National Science Foundation under NSF award no. ECS-0335765. H.W. acknowledges support from Rice University.
Publisher Copyright:
© 2018 Elsevier Inc.
PY - 2019/1/16
Y1 - 2019/1/16
N2 - The scaling up of electrocatalytic CO 2 reduction for practical applications is still hindered by a few challenges: low selectivity, small current density to maintain a reasonable selectivity, and the cost of the catalytic materials. Here we report a facile synthesis of earth-abundant Ni single-atom catalysts on commercial carbon black, which were further employed in a gas-phase electrocatalytic reactor under ambient conditions. As a result, those single-atomic sites exhibit an extraordinary performance in reducing CO 2 to CO, yielding a current density above 100 mA cm −2 , with nearly 100% selectivity for CO and around 1% toward the hydrogen evolution side reaction. By further scaling up the electrode into a 10 × 10-cm 2 modular cell, the overall current in one unit cell can easily ramp up to more than 8 A while maintaining an exclusive CO evolution with a generation rate of 3.34 L hr −1 per unit cell.
AB - The scaling up of electrocatalytic CO 2 reduction for practical applications is still hindered by a few challenges: low selectivity, small current density to maintain a reasonable selectivity, and the cost of the catalytic materials. Here we report a facile synthesis of earth-abundant Ni single-atom catalysts on commercial carbon black, which were further employed in a gas-phase electrocatalytic reactor under ambient conditions. As a result, those single-atomic sites exhibit an extraordinary performance in reducing CO 2 to CO, yielding a current density above 100 mA cm −2 , with nearly 100% selectivity for CO and around 1% toward the hydrogen evolution side reaction. By further scaling up the electrode into a 10 × 10-cm 2 modular cell, the overall current in one unit cell can easily ramp up to more than 8 A while maintaining an exclusive CO evolution with a generation rate of 3.34 L hr −1 per unit cell.
KW - CO evolution
KW - CO reduction
KW - MEA
KW - membrane electrode assembly
KW - practical CO electrolysis
KW - scaling up CO reduction
KW - single-atom catalyst
UR - http://www.scopus.com/inward/record.url?scp=85060006685&partnerID=8YFLogxK
UR - http://www.scopus.com/inward/citedby.url?scp=85060006685&partnerID=8YFLogxK
U2 - 10.1016/j.joule.2018.10.015
DO - 10.1016/j.joule.2018.10.015
M3 - Article
AN - SCOPUS:85060006685
SN - 2542-4351
VL - 3
SP - 265
EP - 278
JO - Joule
JF - Joule
IS - 1
ER -