ORCID Profile
0000-0003-1245-6868
Current Organisation
Griffith University
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Publisher: Elsevier BV
Date: 02-2017
Publisher: Elsevier BV
Date: 2017
Publisher: Wiley
Date: 31-01-2023
DOI: 10.1002/CEY2.295
Abstract: One of the most unique properties of two‐dimensional carbides and nitrides of transition metals (MXenes) is their excellent water dispersibility and yet possessing superior electrical conductivity but their industrial‐scale application is limited by their costly chemical synthesis methods. In this work, the niche feature of MXenes was capitalized in the packed‐bed electrochemical reactor to produce MXenes at an unprecedented reaction rate and yield with minimal chemical waste. A simple NH 4 F solution was employed as the green electrolyte, which could be used repeatedly without any loss in its efficacy. Surprisingly, both fluoride and ammonium were found to play critical roles in the electrochemical etching, functionalization, and expansion of the layered parent materials (MAXs) through which the liberation of ammonia gas was observed. The electrochemically produced MXenes with excellent conductivity, applied as supercapacitor electrodes, could deliver an ultrahigh volumetric capacity (1408 F cm −3 ) and a volumetric energy density (75.8 Wh L −1 ). This revolutionary green, energy‐efficient, and scalable electrochemical route will not only pave the way for industrial‐scale production of MXenes but also open up a myriad of versatile electrochemical modifications for improved functional MXenes.
Publisher: Elsevier BV
Date: 08-2021
Publisher: Elsevier BV
Date: 07-2018
Publisher: Wiley
Date: 10-2023
DOI: 10.1002/CEY2.476
Publisher: Wiley
Date: 25-03-2019
Publisher: Elsevier BV
Date: 02-2018
Publisher: Royal Society of Chemistry (RSC)
Date: 2018
DOI: 10.1039/C8TA03048K
Abstract: The multi-functional Ni 3 C cocatalyst has been demonstrated to markedly boost the robust photocatalytic H 2 evolution g-C 3 N 4 nanosheets.
Publisher: Elsevier BV
Date: 12-2015
Publisher: Royal Society of Chemistry (RSC)
Date: 2017
DOI: 10.1039/C7CY00029D
Abstract: Enhanced visible-light photocatalytic H 2 evolution over g-C 3 N 4 nanosheets modified by earth-abundant WC nanoparticles as an active noble-metal-free co-catalyst.
No related grants have been discovered for Kelin He.