Open AccessConstruction of Hierarchical Co–Fe Oxyphosphide Microtubes for Electrocatalytic Overall Water Splitting
Author(s) -
Zhang Peng,
Lu Xue Feng,
Nai Jianwei,
Zang ShuangQuan,
Lou Xiong Wen David
Publication year - 2019
Publication title -
advanced science
Language(s) - English
Resource type - Journals
SCImago Journal Rank - 5.388
H-Index - 100
ISSN - 2198-3844
DOI - 10.1002/advs.201900576
Subject(s) - electrocatalyst , water splitting , materials science , hydrothermal circulation , fabrication , nanotechnology , chemical engineering , hydroxide , catalysis , hydrothermal synthesis , metal organic framework , chemistry , electrode , electrochemistry , photocatalysis , organic chemistry , medicine , alternative medicine , pathology , adsorption , engineering
Abstract Development of efficient electrocatalysts is a crucial requirement to build water splitting systems for the production of clean and sustainable fuels. This goal could be achieved by fine‐tuning the composition and structure of the electrocatalytic materials. Here, a facile self‐templated synthetic strategy is developed for the fabrication of hierarchical Co–Fe oxyphosphide microtubes (MTs). Fe‐based metal–organic compound microrods are first synthesized as the self‐sacrificing template. Afterward, the Fe‐based precursors are converted into hierarchical Co–Fe layered double hydroxide MTs through a hydrothermal approach, which are then transformed into the hierarchical Co–Fe oxyphosphide MTs by a phosphidation treatment. Benefiting from the synergistic effect of the compositions and the advantages of the hierarchical hollow structure, the obtained electrocatalyst exhibits enhanced performance for overall water splitting.