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Summary: In this work, bimetallic transition oxides were successfully synthesized into two-dimensional nanosheets, which expose all the catalytic sites on the surface. Cu, N, and P elements were then doped inside the nanosheets to activate the catalytic sites. The resulting composites show improved catalytic performance for OER and ORR, as well as superior performance as a cathodic catalyst for ZAB.
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Xu Hu et al.
Summary: Through simulations, we found that coordinating pyrrolic N contributes to a higher activity than pyridinic N in the oxygen reduction reaction (ORR), and pyrrolic FeN4C exhibits the highest activity in acidic media. Meanwhile, the in situ transformation of active sites also explains the higher activity of Fe-N-C in alkaline media.
JOURNAL OF THE AMERICAN CHEMICAL SOCIETY
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Shan Chen et al.
Summary: This study demonstrates the feasibility of using single atoms to manipulate nucleation behaviors in low-temperature metal batteries, achieving high-rate and dendrite-free zinc plating/stripping behavior under low temperatures.
ACS ENERGY LETTERS
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