电解水
分解水
催化作用
制氢
电催化剂
电化学
电解
电解质
化学工程
材料科学
纳米-
氢
纳米技术
化学
电极
光催化
物理化学
工程类
有机化学
生物化学
作者
Zewen Zhuang,Yu Wang,Cong Xu,Shoujie Liu,Chen Chen,Qing Peng,Zhongbin Zhuang,Hai Xiao,Yuan Pan,Siqi Lu,Rong Yu,Weng‐Chon Cheong,Xing Cao,Konglin Wu,Kaian Sun,Dingsheng Wang,Jun Li,Yadong Li
标识
DOI:10.1038/s41467-019-12885-0
摘要
Abstract High-efficiency water electrolysis is the key to sustainable energy. Here we report a highly active and durable RuIrO x ( x ≥ 0) nano-netcage catalyst formed during electrochemical testing by in-situ etching to remove amphoteric ZnO from RuIrZnO x hollow nanobox. The dispersing-etching-holing strategy endowed the porous nano-netcage with a high exposure of active sites as well as a three-dimensional accessibility for substrate molecules, thereby drastically boosting the electrochemical surface area (ECSA). The nano-netcage catalyst achieved not only ultralow overpotentials at 10 mA cm −2 for hydrogen evolution reaction (HER; 12 mV, pH = 0; 13 mV, pH = 14), but also high-performance overall water electrolysis over a broad pH range (0 ~ 14), with a potential of mere 1.45 V (pH = 0) or 1.47 V (pH = 14) at 10 mA cm −2 . With this universal applicability of our electrocatalyst, a variety of readily available electrolytes (even including waste water and sea water) could potentially be directly used for hydrogen production.
科研通智能强力驱动
Strongly Powered by AbleSci AI