In Situ Grown Heterostructure Based on MOF-Derived Carbon Containing n-Type Zn–In–S and Dry-Oxidative p-Type CuO as Pseudocapacitive Electrode Materials
Source abstract
Abstract
The rational design of highly oriented and integrated heterostructures based on metal–organic framework (MOF)-derived carbon containing n -type metal chalcogenides (Zn–In–S/C) polyhedron and p -type metal oxide (CuO) nanowires was proposed. The p -type CuO nanowires were used as a stable scaffold to grow MOF-derived n -type Zn–In–S/C. The controlled and in situ fabricated Zn–In–S/C@CuO heterostructures provided a p – n heterojunction which enhanced the charge transfer, hence providing an improved overall electrochemical performance over its MOF and bare CuO counterpart. Coupled with density functional theory (DFT) calculations, the enhancement in the conductivity of the heterostructure was further verified. The symmetric supercapacitor device delivered an energy density of 7 Wh kg –1 at a power density of 4 kW kg –1 . Overall, the theoretical and experimental investigation of the oriented in situ grown Zn–In–S/C@CuO heterojunction with better cycling stability and electrochemical activity could be a useful asset for energy storage devices.
Source: openalex_inverted_index · Quality: baseline
Research context
OpenAlex topics: Supercapacitor Materials and Fabrication · Advanced battery technologies research · Copper-based nanomaterials and applications
SciVX discovery tags are terminology-based. OpenAlex topics are source-provided classifications.
Affiliations
Department of Mechanical Engineering, City University of Hong Kong, 83 Tat Chee Avenue, Kowloon, Hong Kong
School of Materials Science and Engineering, Yeungnam University, Gyeongsan 712749, South Korea
School of Chemical Engineering, The University of Queensland, St Lucia, QLD 4072, Australia
School of Science and Technology, University of New England, Armidale, NSW 2351, Australia
School of Physical Science and Technology, Lanzhou University, Lanzhou 730000, China
Department of Physics, Faculty of Science, Khon Kaen University, Khon Kaen 40002, Thailand
Institute of Nanomaterials Research and Innovation for Energy (IN-RIE), NANOTEC-KKU RNN on Nanomaterials Research and Innovation for Energy, Khon Kaen University, Khon Kaen 40002, Thailand
Funding
Research Grants Council, University Grants Committee
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