TY - JOUR
T1 - Pd nanocrystals grown on MXene and reduced graphene oxide co-constructed three-dimensional nanoarchitectures for efficient formic acid oxidation reaction
AU - Yang, Cuizhen
AU - He, Haiyan
AU - Jiang, Quanguo
AU - Liu, Xiaoyan
AU - Shah, Surendra P.
AU - Huang, Huajie
AU - Li, Weihua
N1 - Funding Information:
This work was financially supported by the National Natural Science Foundation of China ( 51802077 ), the Fundamental Research Funds for the Central Universities ( 2019B66614 and 2017B05614 ), Postgraduate Research & Practice Innovation Program of Jiangsu Province ( SJKY19-0464 ), and the National Science Fund for Distinguished Young Scholars ( 51525903 ).
PY - 2021/1/1
Y1 - 2021/1/1
N2 - Although direct formic acid fuel cell (DFAFC) is regarded as one of the most promising energy-conversion systems, its commercialization process is impeded by the high costs of electrode catalysts as well as the sluggish catalytic reaction kinetics. Herein, we present a convenient bottom-up method to the synthesis of nanosized Pd crystals grown on 3D porous hybrid nanoarchitectures constructed from MXene (Ti3C2Tx) and reduced graphene oxide nanosheets (Pd/MX-rGO) through a co-assembly process. The as-derived 3D Pd/MX-rGO nanoarchitecture is equipped with a number of attractive textural features, such as 3D cross-linked porous networks, large specific surface area, uniform Pd dispersion, optimized electronic structure, and good electron conductivity. As a result, unusual formic acid oxidation properties in terms of high catalytic activity, strong poison tolerance, and reliable long-term stability are achieved for the 3D Pd/MX-rGO catalyst, significantly superior to those for conventional Pd catalysts supported by carbon black, graphene, and Ti3C2Tx matrixes.
AB - Although direct formic acid fuel cell (DFAFC) is regarded as one of the most promising energy-conversion systems, its commercialization process is impeded by the high costs of electrode catalysts as well as the sluggish catalytic reaction kinetics. Herein, we present a convenient bottom-up method to the synthesis of nanosized Pd crystals grown on 3D porous hybrid nanoarchitectures constructed from MXene (Ti3C2Tx) and reduced graphene oxide nanosheets (Pd/MX-rGO) through a co-assembly process. The as-derived 3D Pd/MX-rGO nanoarchitecture is equipped with a number of attractive textural features, such as 3D cross-linked porous networks, large specific surface area, uniform Pd dispersion, optimized electronic structure, and good electron conductivity. As a result, unusual formic acid oxidation properties in terms of high catalytic activity, strong poison tolerance, and reliable long-term stability are achieved for the 3D Pd/MX-rGO catalyst, significantly superior to those for conventional Pd catalysts supported by carbon black, graphene, and Ti3C2Tx matrixes.
KW - Electrocatalysts
KW - Fuel cells
KW - Graphene
KW - MXene
KW - Palladium
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U2 - 10.1016/j.ijhydene.2020.09.243
DO - 10.1016/j.ijhydene.2020.09.243
M3 - Article
AN - SCOPUS:85093077031
VL - 46
SP - 589
EP - 598
JO - International Journal of Hydrogen Energy
JF - International Journal of Hydrogen Energy
SN - 0360-3199
IS - 1
ER -