Zhang Qi, Karthick R, Zhao Xiliang, Zhang Liguo, Shi Yumeng, Sun Linfeng, Su Ching-Yuan, Chen Fuming
Guangdong Provincial Key Laboratory of Quantum Engineering and Quantum Materials, Guangdong Provincial Engineering Technology Research Center for Wastewater Management and Treatment, School of Environment, School of Physical and Communication Engineering, South China Normal University, Guangzhou 510006, China.
International Collaborative Laboratory of 2D Materials for Optoelectronics Science and Technology of Ministry of Education, Engineering Technology Research Center for 2D Material Information Function Devices and Systems of Guangdong Province, College of Optoelectronic Engineering, Shenzhen University, Shenzhen, 518060 China.
Nanoscale. 2020 Jun 18;12(23):12268-12274. doi: 10.1039/d0nr00862a.
An aqueous chloride ion battery (CIB) is an emerging technology for electrochemical energy storage as well as battery desalination systems. However, the instability and decomposition of electrode materials in an aqueous medium is a major issue in CIBs. Herein, in one step, we synthesized fine antimony nanoparticles with a size of ∼20 nm on reduced graphene oxide (Sb@rGO) sheets using a hydrothermal route with facile and cost-effective processes. It is proposed as a new anode material and coupled with the AgCl cathode in an aqueous CIB. The specific capacity is maintained constantly at 51.6 mA h g-1 at a current density of 400 mA g-1 even after 200 cycles. In addition, characterization methods such as electrochemical analysis, X-ray diffraction, etc. were used to confirm the reaction mechanism. The chloride ion capture material developed in this research work will be significant for CIBs as an energy storage technology or battery desalination system.
水系氯离子电池（CIB）是一种用于电化学储能以及电池脱盐系统的新兴技术。然而，电极材料在水介质中的不稳定性和分解是CIB中的一个主要问题。在此，我们通过水热法采用简便且经济高效的工艺，一步合成了尺寸约为20 nm的精细锑纳米颗粒负载于还原氧化石墨烯（Sb@rGO）片上。它被提议作为一种新型负极材料，并与水系CIB中的AgCl正极相耦合。即使在200次循环后，在400 mA g-1的电流密度下，比容量仍能持续保持在51.6 mA h g-1。此外，还采用了电化学分析、X射线衍射等表征方法来确定反应机理。本研究工作中开发的氯离子捕获材料对于作为储能技术或电池脱盐系统的CIB具有重要意义。
