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Institution

Nanchang Hangkong University

EducationNanchang, China
About: Nanchang Hangkong University is a education organization based out in Nanchang, China. It is known for research contribution in the topics: Microstructure & Photocatalysis. The organization has 7004 authors who have published 5270 publications receiving 62162 citations. The organization is also known as: Nanchang Aviation University.


Papers
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Journal ArticleDOI
24 Jan 2012-ACS Nano
TL;DR: The experimental results are believed to be significant because they not only give further insight into the ORR mechanism of these metal-free doped carbon materials, but also open a way to fabricate other new low-cost NPMCs with high electrocatalytic activity by a simple, economical, and scalable approach for real FC applications.
Abstract: Tailoring the electronic arrangement of graphene by doping is a practical strategy for producing significantly improved materials for the oxygen-reduction reaction (ORR) in fuel cells (FCs). Recent studies have proven that the carbon materials doped with the elements, which have the larger (N) or smaller (P, B) electronegative atoms than carbon such as N-doped carbon nanotubes (CNTs), P-doped graphite layers and B-doped CNTs, have also shown pronounced catalytic activity. Herein, we find that the graphenes doped with the elements, which have the similar electronegativity with carbon such as sulfur and selenium, can also exhibit better catalytic activity than the commercial Pt/C in alkaline media, indicating that these doped graphenes hold great potential for a substitute for Pt-based catalysts in FCs. The experimental results are believed to be significant because they not only give further insight into the ORR mechanism of these metal-free doped carbon materials, but also open a way to fabricate other ne...

1,884 citations

Journal ArticleDOI
TL;DR: A cost-effective route for the preparation of Fe(3) C-based core-shell structured catalysts for oxygen reduction reactions was developed, which features an ultralow cost and excellent long-term stability suitable for mass production.
Abstract: A cost-effective route for the preparation of Fe(3) C-based core-shell structured catalysts for oxygen reduction reactions was developed. The novel catalysts generated a much higher power density (i.e., three times higher at R(ex) of 1 Ω) than the Pt/C in microbial fuel cells. Furthermore, the N-Fe/Fe(3)C@C features an ultralow cost and excellent long-term stability suitable for mass production.

505 citations

Journal ArticleDOI
TL;DR: In this article, an annealing strategy is developed to accurately regulate the content of ketonic carbonyl groups on nanodiamonds; meanwhile other structural characteristics of the diamond remain unchanged.
Abstract: Nanodiamonds exhibit great potential as green catalysts for remediation of organic contaminants. However, the specific active site and corresponding oxidative mechanism are unclear, which retard further developments of high-performance catalysts. Here, an annealing strategy is developed to accurately regulate the content of ketonic carbonyl groups on nanodiamonds; meanwhile other structural characteristics of nanodiamonds remain almost unchanged. The well-defined nanodiamonds with well-controlled ketonic carbonyl groups exhibit excellent catalytic activity in activation of peroxymonosulfate for oxidation of organic pollutants. Based on the semi-quantitative and quantitative correlations of ketonic carbonyl groups and the reaction rate constants, it is conclusively determined that ketonic carbonyl groups are the catalytically active sites. Different from conventional oxidative systems, reactive oxygen species in nanodiamonds@peroxymonosulfate system are revealed to be singlet oxygen with high selectivity, which can effectively oxidize and mineralize the target contaminants. Impressively, the singlet-oxygen-mediated oxidation system significantly outperforms the classical radicals-based oxidation system in remediation of actual wastewater. This work not only provides a valuable insight for the design of new nanocarbon catalysts with abundant active sites but also establishes a very promising catalytic oxidation system for the green remediation of actual contaminated water.

476 citations

Journal ArticleDOI
TL;DR: This study shows that under artificial solar light PNP can be effectively degraded by a Cu(2)O/TiO (2) p-n junction network which is fabricated by anodizing Cu(0) particles-loaded TiO( 2) nanotubes (NTs).
Abstract: p-Nitrophenol (PNP) is a difficultly decomposed organic pollutant under solar light in the absence of strong oxidants. This study shows that under artificial solar light PNP can be effectively degraded by a Cu(2)O/TiO(2) p-n junction network which is fabricated by anodizing Cu(0) particles-loaded TiO(2) nanotubes (NTs). The network is composed of p-type Cu(2)O nanowires on the top surface and Cu(2)O nanoparticles on the inner walls of the n-type TiO(2) NT arrays. The Cu(2)O/TiO(2) network shows much higher degradation rate (1.97 μg/min cm(2)) than the unmodified TiO(2) NTs (0.85 μg/min cm(2)). The enhanced photocatalytic acitivity can be attributed to the extended absorption in the visible resulting from the Cu(2)O nanowire networks and the effective separation of photogenerated carriers driven by the photoinduced potential difference generated at the Cu(2)O/TiO(2) p-n junction interface.

450 citations

Journal ArticleDOI
TL;DR: In this article, a single or few-layer MoS 2 nanosheets on porous TiO 2 nanofibers (TiO 2 @MoS 2 ) are successfully prepared via a simple hydrothermal reaction.
Abstract: The catalytic activity of molybdenum sulfide (MoS 2 ) for hydrogen evolution reaction (HER) strongly depends on the number of exposed active edges of MoS 2 nanosheets. Making single or few-layer MoS 2 nanosheets vertically stand on a substrate is a very effective way to maximally expose the edge sites of MoS 2 nanosheets. Vertically standing single or few-layer MoS 2 nanosheets on porous TiO 2 nanofibers (TiO 2 @MoS 2 ) are successfully prepared via a simple hydrothermal reaction. Due to plenty of pores in the electrospun TiO 2 nanofibers, the MoS 2 nanosheets vertically grow from the inside to the outside, and the growth mode of the MoS 2 nanosheets rooting into the TiO 2 nanofibers endows not only intimate contact between TiO 2 and MoS 2 for fast electrons transfer but also high structural stability of TiO 2 @MoS 2 heterostructure. The vertical orientation of MoS 2 nanosheets enables the active edge sites of MoS 2 to be maximally exposed. Without using Pt cocatalyst, the TiO 2 @MoS 2 heterostructure achieves high photocatalytic hydrogen production rates of 1.68 or 0.49 mmol h −1 g −1 under UV–vis or visible light illumination, respectively. This high photocatalytic activity arises from the positive synergetic effect between the MoS 2 and TiO 2 components in this novel heterostructure. In addition, the TiO 2 @MoS 2 heterostructure exhibits a high durability as evidenced by the invariable hydrogen production rate after continuous illumination over 30 h. The work advances the development of highly efficient molybdenum sulfide-based HER catalysts.

447 citations


Authors

Showing all 7046 results

NameH-indexPapersCitations
Jinghong Li11246548474
Chi Zhang88154538876
Feng Ding8548520354
Zhongping Chen8174224249
Xiaoming Liu7874524988
Lin Guo7741418999
Zhenhai Wen7326718380
Tong Wu6659119325
Xin Lu6337113739
Junwang Tang6222316059
Chak Tong Au6129812525
Qiang Liu6065220634
Shenglian Luo6018210509
Guo-Cong Guo6043912268
Paul L. Rosin5939113094
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Performance
Metrics
No. of papers from the Institution in previous years
YearPapers
202327
202296
2021614
2020507
2019470
2018386