N, P (S) Co-doped Mo2C/C hybrid electrocatalysts for improved hydrogen generation

Wang, Dezhi; Liu, Tianying; Wang, Junchao; Wu, Zhuangzhi

doi:10.1016/j.carbon.2018.07.043

Cited by 102 publications

(70 citation statements)

References 50 publications

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“…1 These authors contributed equally to this work. sively explored for HER [8][9][10][11][12][13] . Furthermore, the structural design of electrocatalysts is indispensable for activity enhancement.…”

Section: Introductionmentioning

confidence: 99%

Understanding the synergetic interaction within α-MoC/β-Mo2C heterostructured electrocatalyst

Zhang

Jin

Yang

et al. 2019

Journal of Energy Chemistry

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Section: Introductionmentioning

confidence: 99%

Understanding the synergetic interaction within α-MoC/β-Mo2C heterostructured electrocatalyst

Zhang

Jin

Yang

et al. 2019

Journal of Energy Chemistry

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“…[ 112 ] By irradiating the mixture of Ti 3 C 2 T x particulates and ammonium vanadate in ethylene glycol, both nitrogen and vanadium elements can be incorporated into Ti 3 C 2 T x with the forms of TiON, CVOH, CVO, and VO, resulting in the formation of N, V‐Ti 3 C 2 T x . In addition, codoping of nitrogen and sulfur has also been realized via various dopants such as dicyandiamide/thioacetamide, [ 177,184 ] thiourea [ 181,190 ] and sodium thiosulfate/ammonium hydroxide, [ 172 ] which further extend the applications of hetero‐MXenes.…”

Section: Hetero‐mxenesmentioning

confidence: 99%

“…As mentioned above, thiourea also serves as N source during the doping process, resulting in a codope of N and S elements in MXenes. [ 181,190 ] Other S‐containing dopants such as sodium thiosulfate/ammonium hydroxide [ 172 ] and dicyandiamide/thioacetamide [ 177,184 ] have also been used to fabricate N, S codoped MXenes, providing novel approaches to produce hetero‐MXenes as well as extending their further applications. With regard to the aforementioned S‐containing dopants, various methods have been developed for the fabrication of S‐MXenes such as carburization, mechanically mixing, sintering, hydrothermal and heat treatment.…”

Section: Hetero‐mxenesmentioning

confidence: 99%

Hetero‐MXenes: Theory, Synthesis, and Emerging Applications

et al. 2021

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Since their discovery in 2011, MXenes (abbreviation for transition metal carbides, nitrides, and carbonitrides) have emerged as a rising star in the family of 2D materials owing to their unique properties. Although the primary research interest is still focused on pristine MXenes and their composites, much attention has in recent years been paid also to MXenes with diverse compositions. To this end, this work offers a comprehensive overview of the progress on compositional engineering of MXenes in terms of doping and substituting from theoretical predictions to experimental investigations. Synthesis and properties are briefly introduced for pristine MXenes and then reviewed for hetero‐MXenes. Theoretical calculations regarding the doping/substituting at M, X, and T sites in MXenes and the role of vacancies are summarized. After discussing the synthesis of hetero‐MXenes with metal/nonmetal (N, S, P) elements by in situ and ex situ strategies, the focus turns to their emerging applications in various fields such as energy storage, electrocatalysts, and sensors. Finally, challenges and prospects of hetero‐MXenes are addressed. It is anticipated that this review will be beneficial to bridge the gap between predictions and experiments as well as to guide the future design of hetero‐MXenes with high performance.

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“…Introducing bi‐nonmetal heteroatoms in material lattice have also been attempted to tune the d‐orbitals of Mo 2 C and optimizing the surface and electronic structure to boost the catalytic activity of Mo 2 C. [ 81 ] For instance, Wang et al [ 81 ] have synthesized ultrafine N, P and N, S dual‐doped molybdenum carbide nanoparticles (NP‐Mo 2 C and NS‐Mo 2 C). As a result, both the NP‐Mo 2 C and NS‐Mo 2 C electrocatalysts obtained higher HER activity than mono‐heteroatom‐doped Mo 2 C nanoparticles due to the dual‐heteroatoms‐synergistic effect on the surface of hybrids.…”

Section: Active Surface/interfaces Engineering In Molybdenum Carbidementioning

confidence: 99%

Surface and Interface Engineering: Molybdenum Carbide–Based Nanomaterials for Electrochemical Energy Conversion

Huo

Sun

et al. 2019

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Molybdenum carbide (MoxC)‐based nanomaterials have shown competitive performances for energy conversion applications based on their unique physicochemical properties. A large surface area and proper surface atomic configuration are essential to explore potentiality of MoxC in electrochemical applications. Although considerable efforts are made on the development of advanced MoxC‐based catalysts for energy conversion with high efficiency and stability, some urgent issues, such as low electronic conductivity, low catalytic efficiency, and structural instability, have to be resolved in accordance with their application environments. Surface and interface engineering have shown bright prospects to construct highly efficient MoxC‐based electrocatalysts for energy conversion including the hydrogen evolution reaction, oxygen evolution reaction, nitrogen reduction reaction, and carbon dioxide reduction reaction. In this Review, the recent progresses in terms of surface and interface engineering of MoxC‐based electrocatalytic materials are summarized, including the increased number of active sites by decreasing the particle size or introducing porous or hierarchical structures and surface modification by introducing heteroatom(s), defects, carbon materials, and others electronic conductive species. Finally, the challenges and prospects for energy conversion on MoxC‐based nanomaterials are discussed in terms of key performance parameters for the catalytic performance.

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N, P (S) Co-doped Mo2C/C hybrid electrocatalysts for improved hydrogen generation

Cited by 102 publications

References 50 publications

Understanding the synergetic interaction within α-MoC/β-Mo2C heterostructured electrocatalyst

Understanding the synergetic interaction within α-MoC/β-Mo2C heterostructured electrocatalyst

Hetero‐MXenes: Theory, Synthesis, and Emerging Applications

Surface and Interface Engineering: Molybdenum Carbide–Based Nanomaterials for Electrochemical Energy Conversion

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