萝藦壳衍生多孔碳电极及其在电容去离子中的应用  

Metaplexis Japonica Shell Derived Porous Carbon Electrode and Its Application in Capacitive Deionization

作　　者：姚雪娇 蔡亚果 郭梦月 鲍恺婧 孙卓[1,2] 宋也男 朴贤卿 Yao Xuejiao;Cai Yaguo;Guo Mengyue;Bao Kaijing;Sun Zhuo;Song Yenan;Piao Xianqing(Engineering Research Center for Nano photonics&Advanced Instrument of Ministry of Education,School of Physics and Electronic Science,East Ch ina Normal University,Shanghai 200062,China;Shanghai Industrial Techology Institute,Shanghai 201206,China)

机构地区：[1]华东师范大学物理与电子科学学院纳光电与先进装备教育部工程研究中心,上海200062 [2]上海产业技术研究院,上海201206

出　　处：《微纳电子技术》2020年第4期270-276,291,共8页Micronanoelectronic Technology

基　　金：上海市自然科学基金资助项目(16ZR1410700)。

摘　　要：选用常见的生物质萝藦壳作为碳源,并采用水热碳化法和化学活化法,通过K2CO3和KOH进行活化后,分别得到多孔碳材料并命名为MPJ-KCO和MPJ-KO,与不使用活化剂的样品MPJ-CB进行对比,MPJ-KO具有丰富的微孔和介孔,且比表面积达到1586 m2/g。在扫描速率5 mV/s下,MPJ-KO电极比电容达149.9 F/g。在电容去离子(CDI)脱盐实验中,MPJ-KO电极脱盐量达到16.20 mg/g。通过这项研究,不仅可以最大化废弃生物质的价值,还提供了其在CDI脱盐中的潜在应用。The common biomass metaplexis japonica shells were collected as carbon source and treated by the hydrothermal carbonization and chemical activation methods.The porous carbon materials activated with K2CO3 and KOH were obtained and named as MPJ-KCO and MPJ-KO,respectively.By compared with MPJ-CB without using activation agent,the MPJ-KO has abundant micropores and mesopores,and the specific surface area reaches 1 586 m2/g.Meanwhile,the specific capacitance of the MPJ-KO electrode can reach 149.9 F/g at the scan rate of 5 mV/s.The salt adsorption capacity of the MPJ-KO electrode reaches 16.20 mg/g in the capacitive deionization(CDI)desalination experiment.The research can maximize the value of waste biomass and offer a potential application in the field of CDI desalination.

关 键 词：生物质 碳电极 活化 电容去离子(CDI) 多孔结构 

分 类 号：TB383[一般工业技术—材料科学与工程]