Xinxin Shu, Xueying Cao, Bowen He, Xunyi Chen, Lanling Zhao, Chengdong Yang, Jizhen Ma and Jintao Zhang
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引用次数: 0
Abstract
Single atom electrocatalysts with typical metal–nitrogen–carbon sites possess good oxygen reduction reaction (ORR) activity, yet challenges remain in fabricating rechargeable zinc–air batteries (ZABs) due to their poor oxygen evolution reaction (OER) performance. Herein, we demonstrated the in situ anchoring of indium clusters on a carbon matrix with iron–nitrogen–carbon sites via the pyrolysis of supermolecule aggregates coordinated with indium and iron ions, aimed to prepare advanced bifunctional electrocatalysts for the ORR and OER. A detailed atomic structure analysis reveals that the modulation of the coordination environment between the indium cluster and iron–nitrogen–carbon sites induces asymmetrical charge distribution to reduce the reaction barrier via the p–d orbital hybridization, thus achieving superior bifunctional electrocatalytic activity. Consequently, the rechargeable ZABs demonstrated a cycling durability of 1650 h. Moreover, the solid-state batteries also exhibited a large power density of 220.0 mW cm−2. This work provides a feasible guidance for rational incorporation of metal clusters with single atom sites to enhance bifunctional electrocatalysis.
期刊介绍:
Energy & Environmental Science, a peer-reviewed scientific journal, publishes original research and review articles covering interdisciplinary topics in the (bio)chemical and (bio)physical sciences, as well as chemical engineering disciplines. Published monthly by the Royal Society of Chemistry (RSC), a not-for-profit publisher, Energy & Environmental Science is recognized as a leading journal. It boasts an impressive impact factor of 8.500 as of 2009, ranking 8th among 140 journals in the category "Chemistry, Multidisciplinary," second among 71 journals in "Energy & Fuels," second among 128 journals in "Engineering, Chemical," and first among 181 scientific journals in "Environmental Sciences."
Energy & Environmental Science publishes various types of articles, including Research Papers (original scientific work), Review Articles, Perspectives, and Minireviews (feature review-type articles of broad interest), Communications (original scientific work of an urgent nature), Opinions (personal, often speculative viewpoints or hypotheses on current topics), and Analysis Articles (in-depth examination of energy-related issues).