期刊
ACS APPLIED MATERIALS & INTERFACES
卷 13, 期 20, 页码 23732-23742出版社
AMER CHEMICAL SOC
DOI: 10.1021/acsami.1c04104
关键词
metal-organic framework; carbon nanotube; electrospinning; multifunctional membrane; electrocatalyst
资金
- National Research Foundation of Korea (NRF)
- Government of Korea (MSIT) [2019R1A5A8080326]
- program for fostering next-generation researchers in engineering of National Research Foundation of Korea(NRF) - Ministry of Science, ICT [2017H1D8A2030449]
This study successfully synthesized a multifunctional advanced nanomaterial by growing Co nanoparticle-integrated nitrogen-doped carbon nanotubes on porous carbon nanofibers using a metal-organic framework based electrospun nanofibrous membrane. The nano-assembly showed promising characteristics for electrocatalytic hydrogen and oxygen evolution reactions and electrochemical energy storage, providing a new, direct, and cost-effective approach for making N-doped CNT-based multifunctional membranes.
The fabrication of an economic and efficient multifunctional advanced nanomaterial with a rational composition and configuration by a facile methodology is a crucial challenge. Herein, we are the first to report the growth of Co nanoparticle-integrated nitrogen-doped carbon nanotubes (N-CNTs) on porous carbon nanofibers by simply heating in the situ-developed metal-organic framework (MOF)-based electrospun nanofibrous membrane with no need for an external supply of any additional precursors and reducing gases. The long and entangled N-CNTs originating from highly porous and graphitic carbon nanofibers offer good flexibility, large surface area, high porosity, high conductivity, the homogeneous incorporation of heteroatoms and metallic constituents, and an abundant exposure of active nanocatalytic sites. The as-developed nano-assembly demonstrates attractive characteristics for electrocatalytic hydrogen and oxygen evolution reactions and electrochemical energy storage. This strategy of integrating the essence of an MOF with electrospinning offers a new, direct, and cost-effective approach for making N-doped CNT-based multifunctional membranes.
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