A novel NiFe@NC-functionalized N-doped carbon microtubule network derived from biomass as a highly efficient 3D free-standing cathode for Li-CO2 batteries

作     者：Liang, Huagen Zhang, Yongliang Chen, Fu Jing, Shengyu Yin, Shibin Tsiakaras, Panagiotis 

作者机构：China Univ Min & Technol Low Carbon Energy Inst Sch Mat Sci & Engn Xuzhou 221008 Jiangsu Peoples R China China Univ Min & Technol Key Lab Coal Based CO2 Capture & Geol Storage Xuzhou 221008 Jiangsu Peoples R China China Univ Min & Technol Sch Informat & Control Engn Xuzhou 221008 Jiangsu Peoples R China Guangxi Univ Collaborat Innovat Ctr Renewable Energy Mat CICRE Guangxi Key Lab Electrochem Energy Mat State Key Lab Proc Nonferrous Met & Featured Mat Nanning 530004 Peoples R China RAS Inst High Temp Elect Lab Electrochem Devices Based Solid Oxide Proton Ekaterinburg 620990 Russia Ural Fed Univ Lab Mat & Devices Electrochem Power Ind 19 Mira Str Ekaterinburg 620002 Russia Univ Thessaly Sch Engn Dept Mech Engn Lab Alternat Energy Convers Syst Volos 38834 Greece 

出 版 物：《APPLIED CATALYSIS B-ENVIRONMENTAL》 (应用催化，B辑：环境)

年 卷 期：2019年第244卷

页      面：559-567页

核心收录：

学科分类：0830[工学-环境科学与工程（可授工学、理学、农学学位）] 081704[工学-应用化学] 07[理学] 0817[工学-化学工程与技术] 070304[理学-物理化学(含∶化学物理)] 08[工学] 0703[理学-化学] 

基　　金：Fundamental Research Funds for the Central Universities [2015XKMS031] Natural Science Foundation of Jiangsu Province of China [BK20160239] European Union Greek national funds through the Operational Program Competitiveness, Entrepreneurship and Innovation [T1EDK-02442] 

主　　题：Li-CO2 battery Cathode 3D free-standing Prussian blue analogues Biomass carbon 

摘      要：Rechargeable Li-CO2 batteries, which utilize CO2 into electrochemical energy storage systems, provide a promising strategy for alleviating the greenhouse effect and developing high energy density second batteries. However, problems such as poor battery performance and short cycle life still hinder the development of Li-CO2 batteries. In this work, a novel three-dimensional free-standing NiFe@NC/PPC cathode is prepared by depositing NiFe-Prussian blue analogues on the surface of pomelo peels (PP) and subsequently calcining at high temperature. The products fully retained the three dimensional porous characteristic of biomass, conducing to mass transfer and diffusion. In addition, the high catalytic activity of NiFe@NC is carried forward. Combined with these two advantages, the Li-CO2 battery with NiFe@NC/PPC cathode exhibits a superior discharge capacity of 6.8 mA h cm(-2) and can sustain 109 cycles with a cutoff capacity of 0.25 mA h cm(-2) at a current density of 0.05 mA cm(-2). Overall, this study provides a promising way for the fabrication of environmentally friendly and inexpensive cathodes to improve the performance of Li-CO2 batteries.