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In Situ Growth of Cobalt Nanoparticles Encapsulated Nitrogen‐Doped Carbon Nanotubes among Ti 3 C 2 T x (MXene) Matrix for Oxygen Reduction and Evolution
Author(s) -
Zhang Youkui,
Jiang Hongliang,
Lin Yunxiang,
Liu Hengjie,
He Qun,
Wu Chuanqiang,
Duan Tao,
Song Li
Publication year - 2018
Publication title -
advanced materials interfaces
Language(s) - English
Resource type - Journals
SCImago Journal Rank - 1.671
H-Index - 65
ISSN - 2196-7350
DOI - 10.1002/admi.201800392
Subject(s) - electrocatalyst , bifunctional , materials science , oxygen evolution , carbon nanotube , electrochemistry , cobalt , chemical engineering , nanoparticle , mxenes , x ray photoelectron spectroscopy , inorganic chemistry , nanotechnology , catalysis , electrode , chemistry , organic chemistry , engineering , metallurgy
MXene with unique layered structure and rich chemical compositions has been extensively investigated for lithium‐ion batteries, electrochemical capacitors, and hydrogen storage medium, but less attention has been paid to its electrocatalytic potential might due to nonideal activity. Here, an in situ growth strategy is developed to synthesize a new type of composite with carbon nanotubes (CNTs) supported on the surface of Ti 3 C 2 T x MXene (Co/N‐CNTs@Ti 3 C 2 T x ) as bifunctional electrocatalyst toward oxygen reduction reaction (ORR) and oxygen evolution reaction (OER). By combining the X‐ray photoelectron detection with synchrotron‐based soft X‐ray spectroscopic characterizations, the strong interfacial coupling and electron transfer are efficiently identified, which can effectively facilitate the bifunctional electrocatalytic performance of Co/N‐CNTs@Ti 3 C 2 T x toward ORR and OER in alkaline solution. The present strategy provides a facile route for the design of the hybrids of CNTs and MXene for bifunctional electrocatalysis.