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Updated: May 23, 2026

Chemoselective Preparation of 1-Iodoalkynes, 1,2-Diiodoalkenes, and 1,1,2-Triiodoalkenes Based on the Oxidative Iodination of Terminal Alkynes
Published on: September 12, 2018
Confining acetonitrile-I2 complexes via Fe single-atom sites for rapid and reversible iodine redox kinetics at -40 °C
Chuanyang Li1, Chengxu Niu1, Ruoyang Xu2
1School of Materials Science and Engineering, Nanjing University of Science and Technology, Nanjing 210094, China. tengzhai@njust.edu.cn.
Abstract:
To achieve rapid and reversible iodine redox kinetics under low-temperature conditions, we developed atomically dispersed Fe sites anchored on porous carbon (Fe-PC) that actively engage the confinement of the acetonitrile-I2 charge-transfer complex, guiding it into an efficient liquid-liquid conversion pathway on the PC surface with a lowered reaction barrier. Consequently, at -40 °C, the Fe-PC/I2 cathode exhibits an exceptional capacity of 215.9 mAh g-1 at 1C and impressively retains 133.0 mAh g-1 at 20C. This work provides a viable route and fundamental insight for designing high-rate iodine batteries operating under subzero environments.
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