title: Tungsten phosphide nanorod arrays directly grown on carbon cloth: a highly efficient and stable hydrogen evolution cathode at all pH values.
abstract: We report the development of tungsten phosphide nanorod arrays on carbon cloth (WP NAs/CC) through a two-step strategy: hydrothermally growing WO3 nanorod arrays on CC (WO3 NAs/CC) first, followed by phosphidation to chemically convert the WO3 NAs/CC precursor into WP NAs/CC. As a novel integrated 3D hydrogen evolution cathode in acidic media, the WP NAs/CC electrode exhibits excellent catalytic activity and durability. It needs overpotentials of 130 and 230 mV to afford current densities of 10 and 100 mA cm(-2), respectively, and its catalytic activity is maintained for at least 70 h. Remarkably, this electrode also works efficiently in both neutral and alkaline solutions.
authors.affiliation: Chemical Synthesis and Pollution Control Key Laboratory of Sichuan Province, School of Chemistry and Chemical Engineering, China West Normal University , Nanchong 637002, Sichuan, China.
authors.forename: Zonghua
authors.initials: Z
authors.lastname: Pu
authors.forename: Qian
authors.initials: Q
authors.lastname: Liu
authors.forename: Abdullah M
authors.initials: AM
authors.lastname: Asiri
authors.forename: Xuping
authors.initials: X
authors.lastname: Sun
keywords: all pH values; hydrogen evolution cathode; nanorod arrays; tungsten phosphide; water splitting