Enhanced oxygen reduction with single-atomic-site iron catalysts for a zinc-air battery and hydrogen-air fuel cell
Yuanjun Chen,Shufang Ji,Shu Zhao,Wenxing Chen,Juncai Dong,Weng-Chon Cheong,Rongan Shen,Xiaodong Wen,Lirong Zheng,Alexandre I. Rykov,Shichang Cai,Haolin Tang,Zhongbin Zhuang,Chen Chen,Qing Peng,Dingsheng Wang,Yadong Li +16 more
TL;DR: Benefiting from structure functionalities and electronic control of a single-atom iron active center, the catalyst shows a remarkable performance with enhanced kinetics and activity for oxygen reduction in both alkaline and acid media and shows promise for substitution of expensive platinum to drive the cathodic oxygen reduction reaction in zinc-air batteries and hydrogen-air fuel cells.
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Abstract: Efficient, durable and inexpensive electrocatalysts that accelerate sluggish oxygen reduction reaction kinetics and achieve high-performance are highly desirable. Here we develop a strategy to fabricate a catalyst comprised of single iron atomic sites supported on a nitrogen, phosphorus and sulfur co-doped hollow carbon polyhedron from a metal-organic framework@polymer composite. The polymer-based coating facilitates the construction of a hollow structure via the Kirkendall effect and electronic modulation of an active metal center by long-range interaction with sulfur and phosphorus. Benefiting from structure functionalities and electronic control of a single-atom iron active center, the catalyst shows a remarkable performance with enhanced kinetics and activity for oxygen reduction in both alkaline and acid media. Moreover, the catalyst shows promise for substitution of expensive platinum to drive the cathodic oxygen reduction reaction in zinc-air batteries and hydrogen-air fuel cells.
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Citations
Continuous nitrogen-doped carbon nanotube matrix for boosting oxygen electrocatalysis in rechargeable Zn-air batteries
TL;DR: In this paper, a three-dimensional continuous nanocarbon network composed of interconnected nitrogen-doped carbon nanotubes and its application as oxygen electrocatalysis in rechargeable Zn-air battery was presented.
149
Ambient Synthesis of Single-Atom Catalysts from Bulk Metal via Trapping of Atoms by Surface Dangling Bonds.
Yunteng Qu,Liguang Wang,Zhijun Li,Peng Li,Qinghua Zhang,Yue Lin,Fangyao Zhou,Huijuan Wang,Zhengkun Yang,Yidong Hu,Mengzhao Zhu,Xuyan Zhao,Xiao Han,Chengming Wang,Qian Xu,Lin Gu,Jun Luo,Lirong Zheng,Yuen Wu +18 more
TL;DR: This synthesis at room temperature from bulk metals provides a versatile platform for facile and low-cost fabrication of SACs, crucial for their mass production and practical application in diverse industrial reactions.
147
Stabilizing Fe-N-C Catalysts as Model for Oxygen Reduction Reaction.
Qianli Ma,Huihui Jin,Jiawei Zhu,Zilan Li,Hanwen Xu,Bingshuai Liu,Zhiwei Zhang,Jingjing Ma,Shichun Mu +8 more
TL;DR: In this paper, the typical Fe-N-C material with the relatively simple constitution and structure, was selected as a model catalyst for transition metal-heteroatoms-carbon (TM-H-C) materials to explore and improve the stability of such a kind of catalysts.
146
The reformation of catalyst: From a trial-and-error synthesis to rational design
Li-gang Wang,Jiabin Wu,Shunwu Wang,Huan Liu,Yao Wang,Dingsheng Wang +5 more
145
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