Pu Zonghua, Liu Qian, Asiri Abdullah M, Sun Xuping
Chemical Synthesis and Pollution Control Key Laboratory of Sichuan Province, School of Chemistry and Chemical Engineering, China West Normal University , Nanchong 637002, Sichuan, China.
ACS Appl Mater Interfaces. 2014 Dec 24;6(24):21874-9. doi: 10.1021/am5060178. Epub 2014 Dec 2.
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.
我们报道了通过两步策略在碳布上制备磷化钨纳米棒阵列（WP NAs/CC）：首先在碳布（CC）上通过水热法生长WO₃纳米棒阵列（WO₃ NAs/CC），然后进行磷化处理，将WO₃ NAs/CC前驱体化学转化为WP NAs/CC。作为酸性介质中一种新型的集成3D析氢阴极，WP NAs/CC电极表现出优异的催化活性和耐久性。分别提供10和100 mA cm⁻²的电流密度时，它需要的过电位分别为130和230 mV，并且其催化活性至少保持70小时。值得注意的是，该电极在中性和碱性溶液中也能高效工作。
