标题: Electrochemical Fixation of Carbon Dioxide in Molten Salts on Liquid Zinc Cathode to Zinc@Graphitic Carbon Spheres for Enhanced Energy Storage

作者: Lv, T (Lv, Teng); Xiao, JX (Xiao, Juanxiu); Weng, W (Weng, Wei); Xiao, W (Xiao, Wei)

来源出版物: ADVANCED ENERGY MATERIALS文献号: 2002241 DOI: 10.1002/aenm.202002241提前访问日期: SEP 2020

摘要: Fixation of carbon dioxide into advanced energy materials is an ideal protocol to address challenges in energy and environmental sustainability, with the efficiency of CO(2)fixation and the functionality of derived materials being the key-enabling factors. Herein, using a liquid zinc cathode for CO(2)fixation in molten salts, CO(2)is electrochemically converted to graphitic carbon shells over spherical Zn cores, namely, Zn@C. The liquid Zn serves as a depolarizer to facilitate the reduction of CO2, and also a soft template to direct the generation of core-shell Zn@C spheres. Density functional theory calculations reveal that the coexisting Zn can enlarge the interlayer gap of graphitic carbon and induce a strong electronic interaction with AlCl4-. Such a strong coupling between Zn and carbon hence offers an enhanced energy storage capability of the Zn@C. The present study provides suggestions for enhancing efficiency of CO(2)fixation and value-added utilization of nonferrous metals.

入藏号: WOS:000564981200001

语言: English

文献类型: Article; Early Access

作者关键词: CO(2)fixation; core-shell structures; energy storage; liquid zinc; molten salt electrochemistry

KeyWords Plus: ALUMINUM-ION BATTERY; CO2; CONVERSION; CAPTURE; REDUCTION; NANOSTRUCTURES; TRANSFORMATION; ELECTROLYSIS; TEMPERATURE; VOLTAGE

地址: [Lv, Teng; Weng, Wei; Xiao, Wei] Wuhan Univ, Sch Resource & Environm Sci, Hubei Int Sci & Technol Cooperat Base Sustainable, Wuhan 430072, Peoples R China.

[Xiao, Juanxiu] Hainan Univ, State Key Lab Marine Resource Utilizat South Chin, 58 Renmin Ave, Haikou 570228, Hainan, Peoples R China.

[Weng, Wei; Xiao, Wei] Wuhan Univ, Coll Chem & Mol Sci, Hubei Key Lab Electrochem Power Sources, Wuhan 430072, Peoples R China.

通讯作者地址: Xiao, W (corresponding author)，Wuhan Univ, Sch Resource & Environm Sci, Hubei Int Sci & Technol Cooperat Base Sustainable, Wuhan 430072, Peoples R China.

Xiao, JX (corresponding author)，Hainan Univ, State Key Lab Marine Resource Utilizat South Chin, 58 Renmin Ave, Haikou 570228, Hainan, Peoples R China.

Xiao, W (corresponding author)，Wuhan Univ, Coll Chem & Mol Sci, Hubei Key Lab Electrochem Power Sources, Wuhan 430072, Peoples R China.

电子邮件地址: xiaojuanxiu@hainanu.edu.cn;00030042@whu.edu.cn

影响因子：25.245