Xiaojun Ma, Ranran Guo, Yujuan Qiu, Zhaozhao Yang, Dongna Li
{"title":"用于高性能超级电容器的木质空心碳球上修饰的分级Co-Ni层状双氢氧化物","authors":"Xiaojun Ma, Ranran Guo, Yujuan Qiu, Zhaozhao Yang, Dongna Li","doi":"10.1080/02773813.2023.2182888","DOIUrl":null,"url":null,"abstract":"Abstract In this work, hollow carbon spheres from wood (WHCS) were prepared by liquefaction, emulsification, half-curing, carbonization and activation steps. Then, Co-Ni layered double hydroxide nanosheets (CoNiLDHs) were grown on the surface of hollow carbon spheres, forming a CoNiLDHs/WHCS composite with a core–shell structure. Benefitting from the excellent electrochemical activity of CoNiLDHs and the high surface area of WHCS, CoNiLDHs/WHCS electrode exhibited a high specific capacitance and excellent stability. Compared with WHCS and CoNiLDHs, the specific capacitance of CoNiLDHs/WHCS (∼1205.24 Fg−1) composite exhibited a superior retention rate (∼71.09% at 10 Ag−1) and excellent cycling stability (87.5% after 5000 cycles at 10 Ag−1). The synthesized CoNiLDHs/WHCS composite is a promising electrode material for developing high-performance supercapacitors.","PeriodicalId":17493,"journal":{"name":"Journal of Wood Chemistry and Technology","volume":"43 1","pages":"59 - 66"},"PeriodicalIF":1.7000,"publicationDate":"2023-03-01","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":"1","resultStr":"{\"title\":\"Hierarchical Co-Ni layered double hydroxide decorated on hollow carbon spheres from wood for high-performance supercapacitors\",\"authors\":\"Xiaojun Ma, Ranran Guo, Yujuan Qiu, Zhaozhao Yang, Dongna Li\",\"doi\":\"10.1080/02773813.2023.2182888\",\"DOIUrl\":null,\"url\":null,\"abstract\":\"Abstract In this work, hollow carbon spheres from wood (WHCS) were prepared by liquefaction, emulsification, half-curing, carbonization and activation steps. Then, Co-Ni layered double hydroxide nanosheets (CoNiLDHs) were grown on the surface of hollow carbon spheres, forming a CoNiLDHs/WHCS composite with a core–shell structure. Benefitting from the excellent electrochemical activity of CoNiLDHs and the high surface area of WHCS, CoNiLDHs/WHCS electrode exhibited a high specific capacitance and excellent stability. Compared with WHCS and CoNiLDHs, the specific capacitance of CoNiLDHs/WHCS (∼1205.24 Fg−1) composite exhibited a superior retention rate (∼71.09% at 10 Ag−1) and excellent cycling stability (87.5% after 5000 cycles at 10 Ag−1). The synthesized CoNiLDHs/WHCS composite is a promising electrode material for developing high-performance supercapacitors.\",\"PeriodicalId\":17493,\"journal\":{\"name\":\"Journal of Wood Chemistry and Technology\",\"volume\":\"43 1\",\"pages\":\"59 - 66\"},\"PeriodicalIF\":1.7000,\"publicationDate\":\"2023-03-01\",\"publicationTypes\":\"Journal Article\",\"fieldsOfStudy\":null,\"isOpenAccess\":false,\"openAccessPdf\":\"\",\"citationCount\":\"1\",\"resultStr\":null,\"platform\":\"Semanticscholar\",\"paperid\":null,\"PeriodicalName\":\"Journal of Wood Chemistry and Technology\",\"FirstCategoryId\":\"88\",\"ListUrlMain\":\"https://doi.org/10.1080/02773813.2023.2182888\",\"RegionNum\":4,\"RegionCategory\":\"农林科学\",\"ArticlePicture\":[],\"TitleCN\":null,\"AbstractTextCN\":null,\"PMCID\":null,\"EPubDate\":\"\",\"PubModel\":\"\",\"JCR\":\"Q2\",\"JCRName\":\"MATERIALS SCIENCE, PAPER & WOOD\",\"Score\":null,\"Total\":0}","platform":"Semanticscholar","paperid":null,"PeriodicalName":"Journal of Wood Chemistry and Technology","FirstCategoryId":"88","ListUrlMain":"https://doi.org/10.1080/02773813.2023.2182888","RegionNum":4,"RegionCategory":"农林科学","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":null,"EPubDate":"","PubModel":"","JCR":"Q2","JCRName":"MATERIALS SCIENCE, PAPER & WOOD","Score":null,"Total":0}
Hierarchical Co-Ni layered double hydroxide decorated on hollow carbon spheres from wood for high-performance supercapacitors
Abstract In this work, hollow carbon spheres from wood (WHCS) were prepared by liquefaction, emulsification, half-curing, carbonization and activation steps. Then, Co-Ni layered double hydroxide nanosheets (CoNiLDHs) were grown on the surface of hollow carbon spheres, forming a CoNiLDHs/WHCS composite with a core–shell structure. Benefitting from the excellent electrochemical activity of CoNiLDHs and the high surface area of WHCS, CoNiLDHs/WHCS electrode exhibited a high specific capacitance and excellent stability. Compared with WHCS and CoNiLDHs, the specific capacitance of CoNiLDHs/WHCS (∼1205.24 Fg−1) composite exhibited a superior retention rate (∼71.09% at 10 Ag−1) and excellent cycling stability (87.5% after 5000 cycles at 10 Ag−1). The synthesized CoNiLDHs/WHCS composite is a promising electrode material for developing high-performance supercapacitors.
期刊介绍：
The Journal of Wood Chemistry and Technology (JWCT) is focused on the rapid publication of research advances in the chemistry of bio-based materials and products, including all aspects of wood-based polymers, chemicals, materials, and technology. JWCT provides an international forum for researchers and manufacturers working in wood-based biopolymers and chemicals, synthesis and characterization, as well as the chemistry of biomass conversion and utilization.
JWCT primarily publishes original research papers and communications, and occasionally invited review articles and special issues. Special issues must summarize and analyze state-of-the-art developments within the field of biomass chemistry, or be in tribute to the career of a distinguished researcher. If you wish to suggest a special issue for the Journal, please email the Editor-in-Chief a detailed proposal that includes the topic, a list of potential contributors, and a time-line.
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