CeO_(2)-g-C_(3)N_(4)/C三相复合材料的模板诱导合成及电化学性能  

Template-induced Synthesis of CeO_(2)-g-C_(3)N_(4)/C Composite and Its Electrochemical Performance

作　　者：黄晨阳 刘成宝[1,2,3] 陈丰[1,2,3] 邱永斌 孟宪荣[5] 陈志刚[1,2,3] HUANG Chenyang;LIU Chengbao;CHEN Feng;QIU Yongbin;MENG Xianrong;CHEN Zhigang(Jiangsu Key Laboratory for Environment Functional Materials,Suzhou University of Science and Technology,Suzhou 215009,Jiangsu,China;School of Materials Science and Engineering,Suzhou University of Science and Technology,Suzhou 215009,Jiangsu,China;Jiangsu Collaborative Innovation Center of Technology and Material for Water Treatment,Suzhou University of Science and Technology,Suzhou 215009,Jiangsu,China;Jiangsu Province Ceramics Research Institute Co.,Ltd.,Yixing 214221,Jiangsu,China;Suzhou Institute of Environmental Science,Suzhou 215007,Jiangsu,China)

机构地区：[1]苏州科技大学江苏省环境功能材料重点实验室,江苏苏州215009 [2]苏州科技大学材料科学与工程学院,江苏苏州215009 [3]苏州科技大学江苏水处理技术与材料协同创新中心,江苏苏州215009 [4]江苏省陶瓷研究所有限公司,江苏宜兴214221 [5]苏州市环境科学研究所,江苏苏州215007

出　　处：《材料导报》2025年第6期7-13,共7页Materials Reports

基　　金：江苏省自然科学基金(BK20180103,BK20180971);苏州市科技发展计划项目(SS202036)。

摘　　要：石墨相氮化碳(g-C_(3)N_(4))具有二维结构,且合成方法简单,稳定性好,可作为超级电容器中石墨烯电极的替代材料,但其本身的电容性能较差;而生物质炭具有天然的多孔结构和丰富的表面官能团,具有储能优势。本工作以尿素为g-C_(3)N_(4)前驱体,杏鲍菇为生物模板诱导合成薄片状g-C_(3)N_(4)/C,获得高比表面积的多孔两相复合材料,再通过水热法将CeO_(2)纳米颗粒负载在生物质炭表面和孔洞内得到CeO_(2)-g-C_(3)N_(4)/C三相复合材料。经过电化学测试,CeO_(2)-g-C_(3)N_(4)/C的最高比电容为169.6 F·g^(-1),2000次循环后的电容保持率为97%。g-C_(3)N_(4)与生物质炭相结合提高了基体材料的储能性能,CeO_(2)的负载提高了电化学活性,三相复合使整体材料有优秀的储能性能、充放电性能和循环稳定性。Graphite phase carbon nitride(g-C_(3)N_(4))has a two-dimensional structure,good stability and simple synthesis method.It can be used as an al-ternative material for graphene electrode in supercapacitors,but its capacitor performance is poor.Biochar has the advantages of energy storage due to its natural porous structure and abundant surface functional groups.Urea was used as the precursor of g-C_(3)N_(4)and pleulocargyrus eryngii was selected as the biological template,then lamellar g-C_(3)N_(4)/C was synthesized to obtain porous two-phase composite material with high specific surface area.The results showed that CeO_(2)nanoparticles were anchored on the surface and pores of biochar by hydrothermal method to obtain CeO_(2)-g-C_(3)N_(4)/C three-phase composite material.The maximum specific capacitance of CeO_(2)-g-C_(3)N_(4)/C was 169.6 F·g^(-1),and the capacitance retention rate was 97%after 2000 cycles.The combination of g-C_(3)N_(4)and biochar improves the energy storage performance of the ma-trix material.The load of CeO_(2)improves the electrochemical activity.The energy storage performance,charge and discharge performance and recycle stability of the whole material is excellent because of the three-phase composite.

关 键 词：g-C_(3)N_(4) 生物质炭 模板诱导 过渡金属氧化物 超级电容器 

分 类 号：TB333[一般工业技术—材料科学与工程]