Electrocatalytic Polysulfide Traps for Controlling Redox Shuttle Process of Li-S Batteries

Journal of the American Chemical Society
Hesham Al SalemLeela Mohana Reddy Arava

Abstract

Stabilizing the polysulfide shuttle while ensuring high sulfur loading holds the key to realizing high theoretical energy of lithium-sulfur (Li-S) batteries. Herein, we present an electrocatalysis approach to demonstrate preferential adsorption of a soluble polysulfide species, formed during discharge process, toward the catalyst anchored sites of graphene and their efficient transformation to long-chain polysulfides in the subsequent redox process. Uniform dispersion of catalyst nanoparticles on graphene layers has shown a 40% enhancement in the specific capacity over pristine graphene and stability over 100 cycles with a Coulombic efficiency of 99.3% at a current rate of 0.2 C. Interaction between electrocatalyst and polysulfides has been evaluated by conducting X-ray photoelectron spectroscopy and electron microscopy studies at various electrochemical conditions.

References

Sep 3, 2011·Journal of the American Chemical Society·Rezan Demir-CakanJean-Marie Tarascon
Dec 16, 2011·Nature Materials·Peter G BruceJean-Marie Tarascon
Jul 16, 2014·Chemical Reviews·Arumugam ManthiramYu-Sheng Su
Oct 7, 2014·Chemical Communications : Chem Comm·Guoqiang MaXiangwei Wu
Nov 27, 2014·ACS Applied Materials & Interfaces·Rui XuKhalil Amine
Jan 7, 2015·Nature Communications·Xiao LiangLinda F Nazar
May 15, 2013·Science and Technology of Advanced Materials·Tung-Yuan YungLing-Kang Liu

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Citations

Jul 16, 2016·ACS Applied Materials & Interfaces·Xiaona LiYitai Qian
Jan 24, 2017·ACS Applied Materials & Interfaces·Zhixiao Liu, Partha P Mukherjee
Jul 4, 2017·Journal of the American Chemical Society·Wei TangGuangyuan Wesley Zheng
Apr 24, 2018·Physical Chemistry Chemical Physics : PCCP·Zhixiao LiuPartha P Mukherjee
Nov 8, 2016·Physical Chemistry Chemical Physics : PCCP·Zhicong LiangW T Zheng
Mar 14, 2017·Chemical Society Reviews·Wenjing LuXianfeng Li
Jan 22, 2019·Chemistry : a European Journal·Xiaoyu DingYuegang Zhang
May 14, 2019·Advanced Materials·Sheng-Heng Chung, Arumugam Manthiram
Dec 19, 2019·Chemical Communications : Chem Comm·Shuai ZhangBingbing Tian
Feb 14, 2020·Nanoscale Horizons : the Home for Rapid Reports of Exceptional Significance in Nanoscience and Nanotechnolgy·Qingfei ZhangDong-Liang Peng
Mar 13, 2020·Advanced Materials·Chao LuXi Chen
Dec 7, 2018·The Journal of Chemical Physics·Christopher R Bernard Rodríguez, Juan A Santana
Jan 1, 2019·Nanoscale Horizons : the Home for Rapid Reports of Exceptional Significance in Nanoscience and Nanotechnolgy·Bin LiShubin Yang

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