Rational synthesis of a ZIF-67@Co-Ni LDH heterostructure and derived heterogeneous carbon-based framework as a highly efficient multifunctional sulfur host

doi:10.1039/d0dt02442b

	Rational synthesis of a ZIF-67@Co-Ni LDH heterostructure and derived heterogeneous carbon-based framework as a highly efficient multifunctional sulfur host
	Li, Hongtai 1,2; Jin, Quan 3; Zhao, Jie 2; Wang, Bao 2; Guo, Xiaodong 1
刊名	DALTON TRANSACTIONS
	2020-09-28
卷号	49 期号:36 页码:12686-12694
ISSN号	1477-9226
DOI	10.1039/d0dt02442b
英文摘要	A facile one-pot surfactant-free solvothermal method was developed to synthesize ZIF-67@Co-Ni layered double hydroxide (LDH) heterostructures. By rationally controlling the sequential growth of ZIF-67 and re-precipitation process of 2-MeIM-inserted Co-Ni LDHs, a series of heterogeneous ZIF-67@Co-Ni LDH polyhedra with controllable void space and final hollow Co. Ni LDH polyhedra were obtained through in situ transformation. Typical core-shelled ZIF-67@Co-Ni LDHs, yolk-shelled ZIF-67@Co-Ni LDHs, hollow Co-Ni LDHs, and conventional ZIF-67 were calcined to obtain the derivatives that inherit the morphological characteristics of their corresponding precursors. Due to structural and compositional advantages, the derived core-shelled heterogeneous carbon-based framework composed of a cobalt particle anchored graphitic mesoporous N-doped carbon core and partially reduced Co- Ni layered double oxide (LDO) embedded shell of edge-to-face stacking defective carbon nanosheets exhibited outstanding physical and chemical properties required for high-performance sulfur carrier materials. When employed as a sulfur host, this multifunctional core-shelled carbonaceous derivative smoothly promoted the "immobilization-diffusion conversion-deposition" process of polysulfides. The as-fabricated sulfur cathode exhibited a remarkably improved electrochemical performance with a high initial discharge specific capacity of 1140 mA h g s(-1) at 0.2C and a high retention of 769 mA h g s(-1) after 400 cycles at 1C, demonstrating its high utilization of sulfur and effective suppression of the "shuttle effect".
资助项目	100 Talents Program of the Chinese Academy of Sciences ; National Science Foundation of China[51772296] ; National Science Foundation of China[51672276] ; Foundation for the State Key Laboratory of Biochemical Engineering ; Fundamental Research Funds for the Central Universities, JLU
WOS关键词	METAL-ORGANIC FRAMEWORKS ; HIGH-PERFORMANCE ; ELECTROCHEMICAL PERFORMANCE ; P-NITROPHENOL ; DOPED CARBON ; LITHIUM ; HYBRID ; COBALT ; ANODE ; MICROSPHERES
WOS研究方向	Chemistry
语种	英语
出版者	ROYAL SOC CHEMISTRY
WOS记录号	WOS:000571979900020
资助机构	100 Talents Program of the Chinese Academy of Sciences ; National Science Foundation of China ; Foundation for the State Key Laboratory of Biochemical Engineering ; Fundamental Research Funds for the Central Universities, JLU
内容类型	期刊论文
源URL	[http://ir.ipe.ac.cn/handle/122111/42200]
专题	中国科学院过程工程研究所
通讯作者	Wang, Bao; Guo, Xiaodong
作者单位	1.Sichuan Univ, Sch Chem Engn, Chengdu 610065, Peoples R China 2.Chinese Acad Sci, Inst Proc Engn, State Key Lab Biochem Engn, Beijing 100190, Peoples R China 3.Jilin Univ, Sch Mat Sci & Engn, Minist Educ, Key Lab Automobile Mat, Changchun 130022, Peoples R China
推荐引用方式 GB/T 7714	Li, Hongtai,Jin, Quan,Zhao, Jie,et al. Rational synthesis of a ZIF-67@Co-Ni LDH heterostructure and derived heterogeneous carbon-based framework as a highly efficient multifunctional sulfur host[J]. DALTON TRANSACTIONS,2020,49(36):12686-12694.
APA	Li, Hongtai,Jin, Quan,Zhao, Jie,Wang, Bao,&Guo, Xiaodong.(2020).Rational synthesis of a ZIF-67@Co-Ni LDH heterostructure and derived heterogeneous carbon-based framework as a highly efficient multifunctional sulfur host.DALTON TRANSACTIONS,49(36),12686-12694.
MLA	Li, Hongtai,et al."Rational synthesis of a ZIF-67@Co-Ni LDH heterostructure and derived heterogeneous carbon-based framework as a highly efficient multifunctional sulfur host".DALTON TRANSACTIONS 49.36(2020):12686-12694.