{"status":"ok","message-type":"work","message-version":"1.0.0","message":{"indexed":{"date-parts":[[2026,5,15]],"date-time":"2026-05-15T22:11:50Z","timestamp":1778883110051,"version":"3.51.4"},"reference-count":34,"publisher":"American Scientific Publishers","issue":"10","content-domain":{"domain":[],"crossmark-restriction":false},"short-container-title":["j nanosci nanotechnol"],"published-print":{"date-parts":[[2021,10,1]]},"abstract":"<jats:p>Transition metal and nitrogen co-doped carbon-based catalysts (TM-N-C) have become the most promising catalysts for Pt\/C due to their wide range of sources, low cost, high catalytic activity, excellent stability and strong resistance to poisoning, especially Fe\u2013N\u2013C metal-organic frameworks (MOFs), which are some of the most promising precursors for the preparation of Fe\u2013N\u2013C catalysts due to their inherent properties, such as their highly ordered three-dimensional framework structure, controlled porosity, and tuneable chemistry. Based on these, in this paper, different iron sources were added to synthesis a sort of zeolitic imidazole frameworks (ZIF-8). Then the imidazole salt in ZIF-8 was rearranged into high N-doped carbon by high-temperature pyrolysis to prepare the Fe\u2013N\u2013C catalyst. We studied the physical characteristics of the catalysts by different iron sources and their effects on the catalytic properties of the oxygen reduction reaction (ORR). From the point of morphology, various iron sources have a positive influence on maintaining the morphology of ZIF-8 polyhedron. Fe\u2013N\/C\u2013Fe(NO<jats:sub>3<\/jats:sub>)<jats:sub>3<\/jats:sub>has the same anion as zinc nitrate, and can maintain a polyhedral morphology after high-temperature calcination. It had the highest ORR catalytic activity compared to the other four catalyst materials, which proved that there is a certain relationship between morphology and performance. This paper will provide a useful reference and new models for the development of high-performance ORR catalysts without precious metals.<\/jats:p>","DOI":"10.1166\/jnn.2021.19310","type":"journal-article","created":{"date-parts":[[2021,4,20]],"date-time":"2021-04-20T05:00:20Z","timestamp":1618894820000},"page":"5319-5328","source":"Crossref","is-referenced-by-count":3,"title":["Effect of Different Iron Sources on<i>In-Situ<\/i>Growth of Zeolitic Imidazolate Frameworks-8: For Efficient Oxygen Reduction Electrocatalysts"],"prefix":"10.1166","volume":"21","author":[{"given":"Sha-Sha","family":"Luo","sequence":"first","affiliation":[{"name":"Shanghai Key Laboratory of Materials Protection and Advanced Materials in Electric Power, Shanghai University of Electric Power, Shanghai 200090, China"}],"role":[{"role":"author","vocabulary":"crossref"}]},{"given":"Yu-Meng","family":"Ma","sequence":"additional","affiliation":[{"name":"Shanghai Key Laboratory of Materials Protection and Advanced 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