TY - JOUR
T1 - Synthesis of Pd3Sn and PdCuSn Nanorods with L12 Phase for Highly Efficient Electrocatalytic Ethanol Oxidation
AU - Zhou, Ming
AU - Chen, Bo
AU - Chen, Ye
AU - Dai, Lei
AU - Yin, Pengfei
AU - Zhang, Xiao
AU - Wang, Jinlan
AU - Zhang, Hua
N1 - Funding Information:
M.Z. and J.L. contributed equally to this work. The authors would like to acknowledge the Facility for Analysis, Characterization, Testing, and Simulation, Nanyang Technological University, Singapore, for their electron microscopy (and/or X‐ray) facilities. Z.F. and H.Z. thank the financial support from ITC via Hong Kong Branch of National Precious Metals Material Engineering Research Center (NPMM), and the Start‐Up Grants (Project Nos. 9610480, 9380100, and 7200651) and grants (Project Nos. 9610478, 9680314, 7020013 and 1886921) in City University of Hong Kong. The authors thank the computational resources from the Big Data Center of Southeast University and National Supercomputing Center of Tianjin.
Funding Information:
M.Z. and J.L. contributed equally to this work. The authors would like to acknowledge the Facility for Analysis, Characterization, Testing, and Simulation, Nanyang Technological University, Singapore, for their electron microscopy (and/or X-ray) facilities. Z.F. and H.Z. thank the financial support from ITC via Hong Kong Branch of National Precious Metals Material Engineering Research Center (NPMM), and the Start-Up Grants (Project Nos. 9610480, 9380100, and 7200651) and grants (Project Nos. 9610478, 9680314, 7020013 and 1886921) in City University of Hong Kong. The authors thank the computational resources from the Big Data Center of Southeast University and National Supercomputing Center of Tianjin.
Publisher Copyright:
© 2021 Wiley-VCH GmbH
PY - 2022/1/6
Y1 - 2022/1/6
N2 - The crystal phase of nanomaterials is one of the key parameters determining their physicochemical properties and performance in various applications. However, it still remains a great challenge to synthesize nanomaterials with different crystal phases while maintaining the same composition, size, and morphology. Here, a facile, one-pot, wet-chemical method is reported to synthesize Pd3Sn nanorods with comparable size and morphology but different crystal phases, that is, an ordered intermetallic and a disordered alloy with L12 and face-centered cubic (fcc) phases, respectively. The crystal phase of the as-synthesized Pd3Sn nanorods is easily tuned by altering the types of tin precursors and solvents. Moreover, the approach can also be used to synthesize ternary PdCuSn nanorods with the L12 crystal phase. When used as electrocatalysts, the L12 Pd3Sn nanorods exhibit superior electrocatalytic performance toward the ethanol oxidation reaction (EOR) compared to their fcc counterpart. Impressively, compared to the L12 Pd3Sn nanorods, the ternary L12 PdCuSn nanorods exhibit more enhanced electrocatalytic performance toward the EOR, yielding a high mass current density up to 6.22 A mgPd−1, which is superior to the commercial Pd/C catalyst and among the best reported Pd-based EOR electrocatalysts.
AB - The crystal phase of nanomaterials is one of the key parameters determining their physicochemical properties and performance in various applications. However, it still remains a great challenge to synthesize nanomaterials with different crystal phases while maintaining the same composition, size, and morphology. Here, a facile, one-pot, wet-chemical method is reported to synthesize Pd3Sn nanorods with comparable size and morphology but different crystal phases, that is, an ordered intermetallic and a disordered alloy with L12 and face-centered cubic (fcc) phases, respectively. The crystal phase of the as-synthesized Pd3Sn nanorods is easily tuned by altering the types of tin precursors and solvents. Moreover, the approach can also be used to synthesize ternary PdCuSn nanorods with the L12 crystal phase. When used as electrocatalysts, the L12 Pd3Sn nanorods exhibit superior electrocatalytic performance toward the ethanol oxidation reaction (EOR) compared to their fcc counterpart. Impressively, compared to the L12 Pd3Sn nanorods, the ternary L12 PdCuSn nanorods exhibit more enhanced electrocatalytic performance toward the EOR, yielding a high mass current density up to 6.22 A mgPd−1, which is superior to the commercial Pd/C catalyst and among the best reported Pd-based EOR electrocatalysts.
UR - http://www.scopus.com/inward/record.url?scp=85117716863&partnerID=8YFLogxK
U2 - 10.1002/adma.202106115
DO - 10.1002/adma.202106115
M3 - Journal article
AN - SCOPUS:85117716863
SN - 0935-9648
VL - 34
JO - Advanced Materials
JF - Advanced Materials
IS - 1
M1 - 2106115
ER -