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Preparation of Mesoporous Carbon Materials through Mechanochemical Reaction of Calcium Carbide and Transition Metal Chlorides
Industrial & Engineering Chemistry Research ( IF 3.8 ) Pub Date : 2018-04-17 , DOI: 10.1021/acs.iecr.8b00323 Ke Zhang 1 , Shengjie Tao , Xuebing Xu , Hong Meng , Yingzhou Lu , Chunxi Li
Industrial & Engineering Chemistry Research ( IF 3.8 ) Pub Date : 2018-04-17 , DOI: 10.1021/acs.iecr.8b00323 Ke Zhang 1 , Shengjie Tao , Xuebing Xu , Hong Meng , Yingzhou Lu , Chunxi Li
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Three carbon materials (CMs) were prepared for the first time by the mechanochemical reaction of calcium carbide (CaC2) and a transition metal chloride (MCln: FeCl3, ZnCl2, or CuCl). Their composition and structure were characterized, and their electrochemical performance was evaluated by cyclic voltammetry, constant current charge and discharge, cycle life, and ac impedance, respectively. The reactions may occur through a series reaction, i.e., metathesis reaction between CaC2 and MCln and self-redox of the resulting metal carbides, forming mesoporous CMs with layered structure and specific area of (160–360 m2·g–1). The CM made from ZnCl2 shows good electrochemical performance and higher specific capacity of 84 F·g–1. Further, CMs with better electrochemical performance may be prepared by using other metal halides. This study validates the effectiveness of mechanochemistry for the activation of CaC2, provides a novel method for CMs synthesis at ambient temperature and mild conditions, and might inspire the development of CaC2 chemistry.
中文翻译：
碳化钙与过渡金属氯化物的机械化学反应制备介孔碳材料
Three carbon materials (CMs) were prepared for the first time by the mechanochemical reaction of calcium carbide (CaC2) and a transition metal chloride (MCln: FeCl3, ZnCl2, or CuCl). Their composition and structure were characterized, and their electrochemical performance was evaluated by cyclic voltammetry, constant current charge and discharge, cycle life, and ac impedance, respectively. The reactions may occur through a series reaction, i.e., metathesis reaction between CaC2 and MCln and self-redox of the resulting metal carbides, forming mesoporous CMs with layered structure and specific area of (160–360 m2·g–1）。由ZnCl 2制成的CM显示出良好的电化学性能和更高的84 F·g –1的比容量。此外，可以通过使用其他金属卤化物来制备具有更好的电化学性能的CM。这项研究验证了机械化学作用对CaC 2活化的有效性，为在环境温度和温和条件下合成CM提供了一种新颖的方法，并且可能会激发CaC 2化学的发展。
更新日期：2018-04-18
中文翻译：
碳化钙与过渡金属氯化物的机械化学反应制备介孔碳材料
Three carbon materials (CMs) were prepared for the first time by the mechanochemical reaction of calcium carbide (CaC2) and a transition metal chloride (MCln: FeCl3, ZnCl2, or CuCl). Their composition and structure were characterized, and their electrochemical performance was evaluated by cyclic voltammetry, constant current charge and discharge, cycle life, and ac impedance, respectively. The reactions may occur through a series reaction, i.e., metathesis reaction between CaC2 and MCln and self-redox of the resulting metal carbides, forming mesoporous CMs with layered structure and specific area of (160–360 m2·g–1）。由ZnCl 2制成的CM显示出良好的电化学性能和更高的84 F·g –1的比容量。此外，可以通过使用其他金属卤化物来制备具有更好的电化学性能的CM。这项研究验证了机械化学作用对CaC 2活化的有效性，为在环境温度和温和条件下合成CM提供了一种新颖的方法，并且可能会激发CaC 2化学的发展。
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