Article Synopsis
- Efficient hydrogen evolution reaction (HER) catalysts are crucial for achieving a net-zero carbon emission society, relying on structure-property relationships for design.
- A new strategy has been developed to synthesize 10 types of single-atom-doped CoSe-DETA nanobelts, which enhances catalytic activity.
- The Pb-CoSe-DETA catalyst shows remarkable performance with a current density of 10 mA/cm at just 74 mV in acidic conditions, due to its optimized atomic configuration from single-atom doping.
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Article Abstract
Finding highly efficient hydrogen evolution reaction (HER) catalysts is pertinent to the ultimate goal of transformation into a net-zero carbon emission society. The design principles for such HER catalysts lie in the well-known structure-property relationship, which guides the synthesis procedure that creates catalyst with target properties such as catalytic activity. Here we report a general strategy to synthesize 10 kinds of single-atom-doped CoSe-DETA (DETA = diethylenetriamine) nanobelts. By systematically analyzing these products, we demonstrate a volcano-shape correlation between HER activity and Co atomic configuration (ratio of Co-N bonds to Co-Se bonds). Specifically, Pb-CoSe-DETA catalyst reaches current density of 10 mA cm at 74 mV in acidic electrolyte (0.5 M HSO, pH ~0.35). This striking catalytic performance can be attributed to its optimized Co atomic configuration induced by single-atom doping.
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| http://www.ncbi.nlm.nih.gov/pmc/articles/PMC10121564 | PMC |
| http://dx.doi.org/10.1038/s41467-023-37641-3 | DOI Listing |
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