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You searched for: Author "Duan, Xuezhi" Remove constraint Author: "Duan, Xuezhi" Journal Journal of materials chemistry A Remove constraint Journal: Journal of materials chemistry A
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1. Electrochemical conversion of bulk platinum into platinum single-atom sites for the hydrogen evolution reaction

Author:
Duan, Xuezhi,   et al.   ; Wang, Zhiyuan; Yang, Jia; Gan, Jie; Chen, Wenxing; Zhou, Fangyao; Zhou, Xiao; Yu, Zhenqiang; Zhu, Junfa; Wu, Yuen;     Show all 10 Authors
Source:
Journal of materials chemistry A 2020 v.8 no.21 pp. 10755-10760
ISSN:
2050-7496
Subject:
cadmium sulfide; catalysts; electrochemistry; electrodes; electroplating; graphene oxide; hydrogen production; irradiation; light; metal ions; photocatalysis; photosensitizing agents; platinum
Abstract:
... Herein, we report a convenient and controllable electroplating strategy to fabricate single-atom site catalysts directly from bulk metals with the assistance of graphene oxide membrane (GOM) under mild and ambient conditions. With the regulation of the GOM, the diffusion rate and the concentration of metal ions around the working electrode are efficiently decreased; consequently, the growth of nuc ...
DOI:
10.1039/d0ta02351e

2. Modified carbon nanotubes by KMnO₄ supported iron Fischer–Tropsch catalyst for the direct conversion of syngas to lower olefins

Author:
Duan, Xuezhi,   et al.   ; Wang, Di; Zhou, Xiangping; Ji, Jian; Qian, Gang; Zhou, Xinggui; Chen, De; Yuan, Weikang;     Show all 8 Authors
Source:
Journal of materials chemistry A 2015 v.3 no.8 pp. 4560-4567
ISSN:
2050-7496
Subject:
alkenes; carbon monoxide; carbon nanotubes; catalysts; iron; manganese; manganese monoxide; nanoparticles; potassium; potassium permanganate; redox reactions; reducing agents; synthesis gas; temperature
Abstract:
... Manganese and potassium promoters coated carbon nanotubes (i.e., MnK-CNTs) were synthesized by a redox reaction between CNTs and KMnO₄, in which the CNTs act as reducing agent and as substrate for the heterogeneous nucleation of K-doped manganese oxide. The as-synthesized MnK-CNTs were employed to support Fe catalyst (i.e., Fe/MnK-CNTs, the loadings of 7.9 wt% Fe, 15.7 wt% Mn and 1.9 wt% K) for th ...
DOI:
10.1039/c4ta05202a

3. The templating effect of an easily available cationic polymer with widely separated charge centers on the synthesis of a hierarchical ZSM-5 zeolite

Author:
Duan, Xuezhi,   et al.   ; Zhang, Yicheng; Zhu, Kake; Zhou, Xinggui; Yuan, Weikang;     Show all 5 Authors
Source:
Journal of materials chemistry A 2014 v.2 no.43 pp. 18666-18676
ISSN:
2050-7496
Subject:
benzaldehyde; butanol; catalytic activity; composite polymers; condensation reactions; cyclohexanones; methanol; nanocrystallites; polyamines; quaternary ammonium compounds; zeolites
Abstract:
... The epichlorohydrin-N,N-dimethyl-1,3-diaminopropane copolymer (PCA) has been introduced for the first time as a meso-template to successfully synthesize a hierarchical ZSM-5 zeolite (PCA-ZSM-5) with mesopores of 7–50 nm in diameter by using small-sized nanoblocks. However, when its structural analogue epichlorohydrin–dimethylamine polyamine (PCS) is used, the obtained ZSM-5 zeolite (PCS-ZSM-5) has ...
DOI:
10.1039/c4ta02325k