Journal
ISCIENCE
Volume 23, Issue 7, Pages -Publisher
CELL PRESS
DOI: 10.1016/j.isci.2020.101264
Keywords
-
Categories
Funding
- NSFC [21661023, 21601096, 21802076, 21962013, 21971129]
- Natural Science Foundation of Inner Mongolia Autonomous Region of China [2018BS05007]
- Application Program from Inner Mongolia Science and Technology Department (2016)
- Program of Higher-level Talents of IMU [21300-5185111]
- Cooperation Project of State Key Laboratory of Baiyun Obo Rare Earth Resource Researches and Comprehensive Utilization [2017Z1950]
- National Key R&D Program of China [2017YFA0208000]
- National Natural Science Foundation of China [21971117, 21522106]
- 111 Project from China [B18030]
- Open Funds of the State Key Laboratory of Rare Earth Resource Utilization [RERU2019001]
- Tianjin Key Lab for Rare Earth Materials and Applications [ZB19500202]
- Functional Research Funds for the Central Universities, Nankai University [63186005]
Ask authors/readers for more resources
In this study, we report a Janus- or twins-type honeycomb 3D porous nitrogen-doped carbon (NC) nanosheet array encapsulating ultrafine CoP/Co2P nanorods supported on Ti foil (CoP/Co2P@NC/Ti) as a self-supported electrode for efficient hydrogen evolution. The synthesis and formation mechanism of 3D porous NC nanosheet array assembled into a honeycomb layer with ultrafine CoP/Co2P single-crystal nanorods encapsulated is systematically presented. The CoP/Co2P@NC/Ti electrode exhibits low overpotentials (eta(10)) of 31, 49, and 64 mV at a current density of -10 mA cm(-2) in 0.5 M H2SO4, 1.0 KOH, and 1.0 M PBS, respectively, exceeding the overwhelming majority of the documented transition metal phosphide-based electrocatalysts. Density functional theory calculation reveals that the superior electrocatalytic performance for hydrogen evolution reaction could be ascribed to the strong coupling effects of the reactive facets of CoP and Co2P with the 3D porous NC nanosheet, making it exhibit a more thermoneutral hydrogen adsorption free energy.
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
Share Paper
