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139 results on '"Jin, Xiaojing"'

2. Clinical Forms of Japanese Spotted Fever from Case-Series Study, Zigui County, Hubei Province, China, 2021

Author

Teng, Zhongqiu, Gong, Ping, Wang, Wen, Zhao, Na, Jin, Xiaojing, Sun, Xiangrong, Zhou, Haijian, Lu, Junlin, Lin, Xuebing, Wen, Bohai, Kan, Biao, Xu, Jianguo, and Qin, Tian

Subjects
Hubei, China -- Health aspects, Tick-borne diseases -- Diagnosis -- Risk factors, Rickettsial diseases -- Diagnosis -- Risk factors, Health
Abstract

Japanese spotted fever (JSF), caused by the bacterium Rickettsia japonica, was first described in 1984 in Japan (1). It has been recognized in multiple countries in Asia, including Japan, South [...]

Published
2023
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9. Efficient Photothermal Catalytic Oxidation Enabled by Three-Dimensional Nanochannel Substrates

Author

Li, Yifei, Zhang, Qianpeng, Chong, Yanan, Huang, Wei-Hsiang, Chen, Chi-Liang, Jin, Xiaojing, Chen, Guangxu, Fan, Zhiyong, Qiu, Yongcai, Ye, Daiqi, Li, Yifei, Zhang, Qianpeng, Chong, Yanan, Huang, Wei-Hsiang, Chen, Chi-Liang, Jin, Xiaojing, Chen, Guangxu, Fan, Zhiyong, Qiu, Yongcai, and Ye, Daiqi

Abstract

Photothermal catalysis exhibits promising prospects to overcome the shortcomings of high-energy consumption of traditional thermal catalysis and the low efficiency of photocatalysis. However, there is still a challenge to develop catalysts with outstanding light absorption capability and photothermal conversion efficiency for the degradation of atmospheric pollutants. Herein, we introduced the Co3O4 layer and Pt nanoclusters into the three-dimensional (3D) porous membrane through the atomic layer deposition (ALD) technique, leading to a Pt/Co3O4/AAO monolithic catalyst. The 3D ordered nanochannel structure can significantly enhance the solar absorption capacity through the light-trapping effect. Therefore, the embedded Pt/Co3O4 catalyst can be rapidly heated and the O-2 adsorbed on the Pt clusters can be activated to generate sufficient O-2(-) species, exhibiting outstanding activity for the diverse VOCs (toluene, acetone, and formaldehyde) degradation. Optical characterization and simulation calculation confirmed that Pt/Co3O4/AAO exhibited state-of-the-art light absorption and a notable localized surface plasmon resonance (LSPR) effect. In situ diffuse reflectance infrared Fourier transform spectrometry (in situ DRIFTS) studies demonstrated that light irradiation can accelerate the conversion of intermediates during toluene and acetone oxidation, thereby inhibiting byproduct accumulation. Our finding extends the application of AAO's optical properties in photothermal catalytic degradation of air pollutants.

Published
2024

10. Pedagogy, Curriculum and Special Education: A Case Study in China

Author

Cai, Li, Dearden, Jackie, and Jin, Xiaojing

Abstract

This study uses a conceptual framework devised by Norwich and Lewis in the UK in 2007 to examine the education of children with special educational needs and disabilities (SEND) in China. Norwich and Lewis, whose expressed intention was to offer 'a starting point for setting out a coherent and common framework of teaching that is inclusive', called for research to further develop their work. In that spirit, this article reports an exploratory case study of pedagogy in a Chinese special school, analysed using Norwich and Lewis's conceptual framework. The example of practice in China provides a platform for reflection and challenge to existing theories and practices in other contexts, but also a chance to reflect upon the utility of the framework itself. In this regard, the authors suggest that Norwich and Lewis's conceptual framework provides a helpful lens for analysing inclusive pedagogic practice but that teachers' self-knowledge about their own expectations of students needs to feature more centrally.

Published
2019
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15. Improved Interface Construction on Anode and Cathode for Na‐Ion Batteries Using Ultralow‐Concentration Electrolyte Containing Dual‐Additives.

Author

Lin, Yilong, Jin, Xiaojing, Gao, Shuqing, Liu, Feng, Huang, Sheng, Yang, Xuerui, Chen, Yanwu, and Meng, Yuezhong

Subjects
*ELECTROLYTES, *CATHODES, *SODIUM ions, *ELECTRIC batteries, *SODIUM salts, *STORAGE batteries, *BORATES
Abstract

Compared with Li+, Na+ with a smaller stokes radius has faster de‐solvation kinetics. An electrolyte with ultralow sodium salt (0.3 M NaPF6) is used to reduce the cell cost. However, the organic‐dominated interface, mainly derived from decomposed solvents (SSIP solvation structure), is defective for the long cycling performance of sodium ion batteries. In this work, the simple application of dual additives, including sodium difluoro(oxalato)borate (NaDFOB) and tris(trimethylsilyl)borate (TMSB), is demonstrated to improve the cycling performance of the hard carbon/NaNi1/3Fe1/3Mn1/3O2 cell by constructing interface films on the anode and cathode. A significant improvement on cycling stability has been achieved by incorporating dual additives of NaDFOB and TMSB. Particularly, the capacity retention increased from 17 % (baseline) to 79 % (w/w, 2.0 wt % NaDFOB) and 83 % (w/w, 2.0 wt % NaDFOB and 1.0 wt % TMSB) after 200 cycles at room temperature. Insight into the mechanism of improved interfacial properties between electrodes and electrolyte in ultralow concentration electrolyte has been investigated through a combination of theoretical computation and experimental techniques. [ABSTRACT FROM AUTHOR]

Published
2024
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25. Quenching-Induced Defect-Rich Platinum/Metal Oxide Catalysts Promote Catalytic Oxidation

Author

Chong, Yanan, Chen, Tingyu, Li, Yifei, Lin, Jiajin, Huang, Wei-Hsiang, Chen, Chi-Liang, Jin, Xiaojing, Fu, Mingli, Zhao, Yun, Chen, Guangxu, Wei, Jiake, Qiu, Yongcai, Waterhouse, Geoffrey I. N., Ye, Daiqi, Lin, Zhang, and Guo, Lin

Abstract

Enhancing oxygen activation through defect engineering is an effective strategy for boosting catalytic oxidation performance. Herein, we demonstrate that quenching is an effective strategy for preparing defect-rich Pt/metal oxide catalysts with superior catalytic oxidation activity. As a proof of concept, quenching of α-Fe2O3in aqueous Pt(NO3)2solution yielded a catalyst containing Pt single atoms and clusters over defect-rich α-Fe2O3(Pt/Fe2O3-Q), which possessed state-of-the-art activity for toluene oxidation. Structural and spectroscopic analyses established that the quenching process created abundant lattice defects and lattice dislocations in the α-Fe2O3support, and stronger electronic interactions between Pt species and Fe2O3promote the generation of higher oxidation Pt species to modulate the adsorption/desorption behavior of reactants. In situdiffuse reflectance infrared Fourier transform spectroscopy (in situDRIFTS) characterization studies and density functional theory (DFT) calculations determined that molecular oxygen and Fe2O3lattice oxygen were both activated on the Pt/Fe2O3-Q catalyst. Pt/CoMn2O4, Pt/MnO2, and Pt/LaFeO3catalysts synthesized by the quenching method also offered superior catalytic activity for toluene oxidation. Results encourage the wider use of quenching for the preparation of highly active oxidation catalysts.

Published
2023
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26. Activating Metal Oxides Nanocatalysts for Electrocatalytic Water Oxidation by Quenching-Induced Near-Surface Metal Atom Functionality

Author

Ye, Changchun, primary, Liu, Juzhe, additional, Zhang, Qinghua, additional, Jin, Xiaojing, additional, Zhao, Yun, additional, Pan, Zhenghui, additional, Chen, Guangxu, additional, Qiu, Yongcai, additional, Ye, Daiqi, additional, Gu, Lin, additional, Waterhouse, Geoffrey I. N., additional, Guo, Lin, additional, and Yang, Shihe, additional

Published
2021
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28. A dual plasmonic core—shell Pt/[TiN@TiO2] catalyst for enhanced photothermal synergistic catalytic activity of VOCs abatement.

Author

Li, Anqi, Zhang, Qianpeng, Zhao, Shuaiqi, Chong, Yanan, Wu, Peng, Li, Yifei, Jin, Xiaojing, Chen, Guangxu, Qiu, Yongcai, Yang, Shihe, and Ye, Daiqi

Abstract

Volatile organic compounds (VOCs) are ubiquitous organic pollutants affecting atmospheric environment and human health. The development of new efficient and environmentally friendly materials utilizing photothermal synergistic catalysis for purification of VOCs is still challenging. Herein, we design and prepare a core—shell TiN@TiO2 nanostructure integrating with nanoscaled Pt (Pt/[TiN@TiO2]) by an attractive quenching method. The strong light-harvesting capability of Pt and TiN components improve light-to-heat utilization efficiency by their intrinsic surface plasmon resonance effect. The TiO2 component upon the surface and the coexisting coupling effect of Pt0 and Pt2+ enhance the photocatalytic effect of the system. As a result, the catalytic performance is significantly improved with toluene (120 ppm) conversion of 100% under the gas hourly space velocity of 72,000 mL·g−1·h−1 and light illumination of 500 mW·cm−2. The desired catalyst thus achieves highly efficient coupling effect of photocatalysis and light-to-heat conversion for promoting VOCs abatement. [ABSTRACT FROM AUTHOR]

Published
2022
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35. hUC-MSCs ameliorated CUMS-induced depression by modulating complement C3 signaling-mediated microglial polarization during astrocyte-microglia crosstalk

Author

Li, Jing, primary, Wang, Hualong, additional, Du, Chongbo, additional, Jin, Xiaojing, additional, Geng, Yuan, additional, Han, Bing, additional, Ma, Qinying, additional, Li, Quanhai, additional, Wang, Qian, additional, Guo, Yidi, additional, Wang, Mingwei, additional, and Yan, Baoyong, additional

Published
2020
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47. Preparation of amorphous silica-aluminas with enhanced acidic properties and spectroscopic identification of their acid sites

Author

Jin, Xiaojing, Laboratoire de Réactivité de Surface (LRS), Université Pierre et Marie Curie - Paris 6 (UPMC)-Institut de Chimie du CNRS (INC)-Centre National de la Recherche Scientifique (CNRS), Université Pierre et Marie Curie - Paris VI, Juliette Blanchard, and Pascal Ping Man

Subjects
Amorphous silica-alumina, Préparation, Acidity, Acidité, Preparation, RMN du solide, Silice-Alumine amorphe, [CHIM.CATA]Chemical Sciences/Catalysis, Désalumination, Greffage
Abstract

ASAs with enhanced acidity and a higher fraction of acidic Al were prepared by two experimental strategies. Their textures have been investigated by N2 adsorption–desorption and their acidic properties by FTIR of adsorbed probe molecule (pyridine or CO). Besides, isomerization of 33DMB1 was selected as model reaction to check their activity and characterize their acidity. The first strategy is based on dealumination of commercial ASAs with acetylacetone (Acac) or citric acid (CA). CA is superior to Acac for selective dealumination. It allows removing up to 87% of Al, increases total acidity up to 41%, and fraction of acidic Al by a 5 fold factor. The second strategy is based on the grafting Al precursor (Al(OPri)xL3-x, TIBA, DiBAH) on silica. All the grafted ASAs display better performance for 33DMB1 isomerization than commercial ASA and zeolite, but strong Brønsted acid sites are observed solely for some DiBAH derived samples. Representative samples of these two series were selected as model ASAs for advanced NMR characterization, with the purpose to investigate the structure of acid sites by a combination of one and two-dimensional homo- and heteronuclear 1H and 27Al NMR. On most ASAs, two separate phases are present: alumina and silica-alumina (27Al DQ-SQ NMR). Localization of most of the Al atoms was evidenced based on the flexibility of their coordination (27Al NMR DP and 3Q MAS). Brønsted acidity may be associated with both AlIV and AlV (27Al-1H D-HMQC 2D NMR) but the structure of these sites is probably different from those of zeolites (1H-27Al REAPDOR).; Des silice-alumines (SA) avec des propriétés acides améliorées et une fraction plus élevée d’aluminium acides ont été préparées en utilisant deux stratégies de synthèse. Leurs propriétés texturales ont été étudiées par physisorption de N2 et leurs propriétés acides par suivi FTIR de l’adsorption de molécules sondes (pyridine ou CO). Par ailleurs, la réaction d’isomérisation du 33DMB1 a été utilisée pour caractériser leurs performances catalytiques et leurs propriétés acides. La première stratégie de synthèse a été de désaluminer des silice-alumines commerciales avec de l’acetylacetone ou de l’acide citrique (CA). CA est plus actif et plus sélectif que Acac et permet de retirer jusqu’à 87% des Al initialement présents tout en augmentant la quantité de sites acides (jusqu’à 41%) et en multipliant par 5 la fraction d’Al acides. La seconde stratégie a été de greffé des précurseurs d’aluminium (Al(OPri)xL3-x, TIBA, DiBAH) sur des silices. Toutes les SA obtenues par greffage présentent une activité catalytique plus élevées que les SA commerciales et la zéolithe, mais seules certaines de SA obtenues par greffage de DiBAH ont des sites acides de Bronsted forts. Des SA représentatives de ces deux séries ont été caractérisées par RMN, avec comme objectif d’étudier la structure des sites acides en utilisant des séquences RMN 1D et 2D, homo- et héteronucléaires impliquant 1H et 27Al. Cette étude a mis en évidence: (i) la présence, pour la plupart des SA, de deux phases, l’une d’alumine, l’autre de silice alumine (27Al DQ-SQ NMR); (ii) une localisation des atomes d’Al près de la surface sur la base de leur flexibilité de coordination 27Al NMR (DP and 3Q MAS); (iii) l’implication possible des AlV (en plus des AlIV) dans les sites acides de Bronsted (27Al-1H D-HMQC 2D NMR); (iv) la probable différence de structure des sites acides des SA par rapport à ceux des zéolithes (1H-27Al REAPDOR).

Published
2017

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