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Synthesis of Palladium‐Based Crystalline@Amorphous Core–Shell Nanoplates for Highly Efficient Ethanol Oxidation
Author(s) -
Yin PengFei,
Zhou Ming,
Chen Junze,
Tan Chaoliang,
Liu Guigao,
Ma Qinglang,
Yun Qinbai,
Zhang Xiao,
Cheng Hongfei,
Lu Qipeng,
Chen Bo,
Chen Ye,
Zhang Zhicheng,
Huang Jingtao,
Hu Dianyi,
Wang Jie,
Liu Qing,
Luo Zhiyong,
Liu Zhengqing,
Ge Yiyao,
Wu XueJun,
Du XiWen,
Zhang Hua
Publication year - 2020
Publication title -
advanced materials
Language(s) - English
Resource type - Journals
SCImago Journal Rank - 10.707
H-Index - 527
eISSN - 1521-4095
pISSN - 0935-9648
DOI - 10.1002/adma.202000482
Subject(s) - materials science , amorphous solid , nanomaterials , ternary operation , catalysis , palladium , chemical engineering , nanotechnology , template , crystallography , organic chemistry , chemistry , computer science , engineering , programming language
Phase engineering of nanomaterials (PEN) offers a promising route to rationally tune the physicochemical properties of nanomaterials and further enhance their performance in various applications. However, it remains a great challenge to construct well‐defined crystalline@amorphous core–shell heterostructured nanomaterials with the same chemical components. Herein, the synthesis of binary (Pd‐P) crystalline@amorphous heterostructured nanoplates using Cu 3− χ P nanoplates as templates, via cation exchange, is reported. The obtained nanoplate possesses a crystalline core and an amorphous shell with the same elemental components, referred to as c ‐Pd‐P@ a ‐Pd‐P. Moreover, the obtained c ‐Pd‐P@ a ‐Pd‐P nanoplates can serve as templates to be further alloyed with Ni, forming ternary (Pd‐Ni‐P) crystalline@amorphous heterostructured nanoplates, referred to as c ‐Pd‐Ni‐P@ a ‐Pd‐Ni‐P. The atomic content of Ni in the c ‐Pd‐Ni‐P@ a ‐Pd‐Ni‐P nanoplates can be tuned in the range from 9.47 to 38.61 at%. When used as a catalyst, the c ‐Pd‐Ni‐P@ a ‐Pd‐Ni‐P nanoplates with 9.47 at% Ni exhibit excellent electrocatalytic activity toward ethanol oxidation, showing a high mass current density up to 3.05 A mg Pd −1 , which is 4.5 times that of the commercial Pd/C catalyst (0.68 A mg Pd −1 ).