期刊
JOURNAL OF POWER SOURCES
卷 374, 期 -, 页码 142-148出版社
ELSEVIER SCIENCE BV
DOI: 10.1016/j.jpowsour.2017.11.028
关键词
Bifunctional electrocatalysis; Toptactic conversion; Co2P@Co3O4; Water splitting; Synergistic effects
资金
- National Natural Science Foundation of China [21231002, 21276026, 21771021, 21473013, 21671019]
- 973 Program [2014CB932103]
- 111 Project [B07012]
- Beijing Municipal natural Science Foundation [2152016]
Exploring efficient non-precious electrocatalysts for both the hydrogen evolution reaction (HER) and oxygen evolution reaction (OER) is crucial for many renewable energy conversion processes. In this work, we report that 2D Co2P@Co3O4 microsheets can be prepared through an in-situ toptactic conversion from single-crystal (beta-Co (OH)(2) microplatelets, associated with a surface phosphatization and corrosion process. The resultant Co2P@Co3O4 2D hybrid materials can further serve as self-supported bifunctional catalytic electrodes to drive the overall water splitting for HER and OER simultaneously, with low overpotentials and high long-term stability. Furthermore, a water electrolyzer based on Co2P@(CoO4)-O-3 hybrid as both anode and cathode is fabricated, which achieves 10 mA cm(-2) current at only 1.57 V during water splitting process. Therefore, this work provides a facile strategy to obtain 2D Co2P-based micro/nanostructures, which act as low-cost and highly active electrocatalysts towards overall water splitting application.
作者
我是这篇论文的作者
点击您的名字以认领此论文并将其添加到您的个人资料中。
推荐
暂无数据