4.7 Article

Synergistic copper nanoparticles and adjacent single atoms on biomass-derived N-doped carbon toward overall water splitting

Journal

INORGANIC CHEMISTRY FRONTIERS
Volume 10, Issue 2, Pages 443-453

Publisher

ROYAL SOC CHEMISTRY
DOI: 10.1039/d2qi02285k

Keywords

-

Ask authors/readers for more resources

The rational design of heterogeneous electrocatalysts plays a crucial role in efficient water splitting, and atomic-level active site manipulation provides a deeper understanding of catalytic mechanisms. This study constructs a copper catalyst consisting of single atoms and nanoparticles, achieving high efficiency in water splitting with low overpotentials and small cell voltage.
The rational design of effective heterogeneous electrocatalysts with an appropriate electronic structure and active sites is crucial for efficient overall water splitting. Atomic-level active site manipulation can not only result in a highly efficient activity but also provide an in-depth understanding of the catalytic mechanism. Herein, we construct a synergistic copper catalyst containing single atoms and nanoparticles on biomass-derived N-doped carbon nanosheets, which provides high-density active centers and precise regulation of local environments, achieving low overpotentials of 200 mV for the oxygen evolution reaction and 216 mV for the hydrogen evolution reaction at 10 mA cm(-2), respectively. Moreover, a small cell voltage of 1.65 V is attained to achieve a current density of 10 mA cm(-2) for overall water splitting. This work provides a novel strategy for constructing a non-precious atomic-site catalyst and demonstrates the potential of precise tailoring of the structural heterogeneity for electrochemical water splitting.

Authors

I am an author on this paper
Click your name to claim this paper and add it to your profile.

Reviews

Primary Rating

4.7
Not enough ratings

Secondary Ratings

Novelty
-
Significance
-
Scientific rigor
-
Rate this paper

Recommended

No Data Available
No Data Available