Journal
SCIENCE CHINA-CHEMISTRY
Volume 62, Issue 10, Pages 1365-1370Publisher
SCIENCE PRESS
DOI: 10.1007/s11426-019-9511-x
Keywords
single crystalline; layered double hydroxides; defects; hierarchical structure; oxygen evolution reaction
Categories
Funding
- Fundamental Research Funds for the Central Universities [531107051102]
- National Natural Science Foundation of China [51402100, 21573066, 21522305]
- Provincial Natural Science Foundation of Hunan [2016TP1009]
- Shenzhen Discovery Funding [JCYJ20170306141659388]
Ask authors/readers for more resources
The oxygen evolution reaction (OER) with sluggish reaction kinetics and large overpotential is the critical reaction in water splitting that is promising for energy storage and conversion. Layered double hydroxides (LDHs), due to their unique lamellar structure and flexibility of chemical component, are very competing material candidates for OER. Herein, the morphology structure and the electronic structure of LDHs were simultaneously tuned to improve the OER catalytic activity by mild solvothermal reduction using ethylene glycol. The increased surface area, the introduction of oxygen vacancies and the construction of hierarchical structure greatly enhanced the electro-catalytic activity of LDHs for OER. The as-prepared LDHs showed a lower over-potential as low as 276 mV at a current density of 10 mA cm(-2), and a small Tafel slope of 40.3 mV dec(-1) accompanied with good stability. This work provides an efficient way to the design and optimization of advanced catalysts in the future.
Authors
I am an author on this paper
Click your name to claim this paper and add it to your profile.
Reviews
Recommended
No Data Available