Search

Your search keyword '"Yuan, Tongwei"' showing total 44 results
Start Over Author "Yuan, Tongwei"
44 results on '"Yuan, Tongwei"'

18. Engineering the electronic structure of single atom Ru sites via compressive strain boosts acidic water oxidation electrocatalysis

Author

Yao, Yancai, Hu, Sulei, Chen, Wenxing, Huang, Zheng-Qing, Wei, Weichen, Yao, Tao, Liu, Ruirui, Zang, Ketao, Wang, Xiaoqian, Wu, Geng, Yuan, Wenjuan, Yuan, Tongwei, Zhu, Baiquan, Liu, Wei, Li, Zhijun, He, Dongsheng, Xue, Zhenggang, Wang, Yu, Zheng, Xusheng, Dong, Juncai, Chang, Chun-Ran, Chen, Yanxia, Hong, Xun, Luo, Jun, Wei, Shiqiang, Li, Wei-Xue, Strasser, Peter, Wu, Yuen, and Li, Yadong

Published
2019
Full Text
View/download PDF

23. Facet Engineering of Nanoceria for Enzyme-Mimetic Catalysis

Author

Chen, Min, primary, Zhou, Xiaocheng, additional, Xiong, Can, additional, Yuan, Tongwei, additional, Wang, Wenyu, additional, Zhao, Yafei, additional, Xue, Zhenggang, additional, Guo, Wenxin, additional, Wang, Qiuping, additional, Wang, Huijuan, additional, Li, Yafei, additional, Zhou, Huang, additional, and Wu, Yuen, additional

Published
2022
Full Text
View/download PDF

26. Inooh-Mediated Intergrown Heterojunctions for Enhanced Photocatalytic Performance: Assembly and Interfacial Charge Carrier Transferring

Author

Nekouei, Farzin, primary, Wen, Xiaoming, additional, Zheng, Zhong, additional, Sun, Qingbo, additional, Lu, Teng, additional, Orton, Henry, additional, Kremer, Felipe, additional, Nekouei, Shahram, additional, Yuan, Tongwei, additional, Abdelkader, Elwy H., additional, Liu, Borui, additional, Tricoli, Antonio, additional, Otting, Gottfried, additional, Liu, Zongwei, additional, Frankcombe, Terry, additional, and Liu, Yun, additional

Published
2022
Full Text
View/download PDF

27. Single Iron Site Nanozyme for Ultrasensitive Glucose Detection

Author

Chen, Min, primary, Zhou, Huang, additional, Liu, Xiaokang, additional, Yuan, Tongwei, additional, Wang, Wenyu, additional, Zhao, Chao, additional, Zhao, Yafei, additional, Zhou, Fangyao, additional, Wang, Xin, additional, Xue, Zhenggang, additional, Yao, Tao, additional, Xiong, Can, additional, and Wu, Yuen, additional

Published
2020
Full Text
View/download PDF

29. Thermal Emitting Strategy to Synthesize Atomically Dispersed Pt Metal Sites from Bulk Pt Metal

Author

Qu, Yunteng, primary, Chen, Bingxu, additional, Li, Zhijun, additional, Duan, Xuezhi, additional, Wang, Liguang, additional, Lin, Yue, additional, Yuan, Tongwei, additional, Zhou, Fangyao, additional, Hu, Yidong, additional, Yang, Zhengkun, additional, Zhao, Changming, additional, Wang, Jing, additional, Zhao, Chao, additional, Hu, Yanmin, additional, Wu, Geng, additional, Zhang, Qinghua, additional, Xu, Qian, additional, Liu, Bingyao, additional, Gao, Peng, additional, You, Rui, additional, Huang, Weixin, additional, Zheng, Lirong, additional, Gu, Lin, additional, Wu, Yuen, additional, and Li, Yadong, additional

Published
2019
Full Text
View/download PDF

30. Boosting Oxygen Reduction Catalysis with Fe–N4 Sites Decorated Porous Carbons toward Fuel Cells

Author

Yang, Zhengkun, primary, Wang, Yu, additional, Zhu, Mengzhao, additional, Li, Zhijun, additional, Chen, Wenxing, additional, Wei, Weichen, additional, Yuan, Tongwei, additional, Qu, Yunteng, additional, Xu, Qian, additional, Zhao, Changming, additional, Wang, Xin, additional, Li, Peng, additional, Li, Yafei, additional, Wu, Yuen, additional, and Li, Yadong, additional

Published
2019
Full Text
View/download PDF

32. Unraveling the enzyme-like activity of heterogeneous single atom catalyst

Author

Zhao, Chao, primary, Xiong, Can, additional, Liu, Xiaokang, additional, Qiao, Man, additional, Li, Zhijun, additional, Yuan, Tongwei, additional, Wang, Jing, additional, Qu, Yunteng, additional, Wang, XiaoQian, additional, Zhou, Fangyao, additional, Xu, Qian, additional, Wang, Shiqi, additional, Chen, Min, additional, Wang, Wenyu, additional, Li, Yafei, additional, Yao, Tao, additional, Wu, Yuen, additional, and Li, Yadong, additional

Published
2019
Full Text
View/download PDF

33. 2D MOF induced accessible and exclusive Co single sites for an efficient O-silylation of alcohols with silanes

Author

Wang, Xin, primary, Li, Peng, additional, Li, Zhijun, additional, Chen, Wenxing, additional, Zhou, Huang, additional, Zhao, Yafei, additional, Wang, Xiaoqian, additional, Zheng, Lirong, additional, Dong, Juncai, additional, Lin, Yue, additional, Zheng, Xusheng, additional, Yan, Wensheng, additional, Yang, Jian, additional, Yang, Zhengkun, additional, Qu, Yunteng, additional, Yuan, Tongwei, additional, Wu, Yuen, additional, and Li, Yadong, additional

Published
2019
Full Text
View/download PDF

34. Ultrathin Palladium Nanomesh for Electrocatalysis

Author

Ge, Jingjie, Wei, Pei, Wu, Geng, Liu, Yudan, Yuan, Tongwei, Li, Zhijun, Qu, Yunteng, Wu, Yuen, Li, Hai, Zhuang, Zhongbin, Hong, Xun, Li, Yadong, Ge, Jingjie, Wei, Pei, Wu, Geng, Liu, Yudan, Yuan, Tongwei, Li, Zhijun, Qu, Yunteng, Wu, Yuen, Li, Hai, Zhuang, Zhongbin, Hong, Xun, and Li, Yadong

Abstract

An ordered mesh of palladium with a thickness of about 3 nm was synthesized by a solution-based oxidative etching. The ultrathin palladium nanomeshes have an interconnected two-dimensional network of densely arrayed, ultrathin quasi-nanoribbons that form ordered open holes. The unique mesoporous structure and high specific surface area make these ultrathin Pd nanomeshes display superior catalytic performance for ethanol electrooxidation (mass activity of 5.40 Am g−1 and specific activity of 7.09 mA cm−2 at 0.8 V vs. RHE). Furthermore, the regular mesh structure can be applied to support other noble metals, such as platinum, which exhibits extremely high hydrogen evolution reaction (HER) activity and durability. © 2018 Wiley-VCH Verlag GmbH & Co. KGaA, Weinheim

Published
2018

37. Ultrathin Palladium Nanomesh for Electrocatalysis

Author

Ge, Jingjie, primary, Wei, Pei, additional, Wu, Geng, additional, Liu, Yudan, additional, Yuan, Tongwei, additional, Li, Zhijun, additional, Qu, Yunteng, additional, Wu, Yuen, additional, Li, Hai, additional, Zhuang, Zhongbin, additional, Hong, Xun, additional, and Li, Yadong, additional

Published
2018
Full Text
View/download PDF

39. Revealing petroleum-water-CO2emulsion stability by NMR about oil recovery and carbon storage

Author

Yuan, Tongwei, Wang, Diansheng, and Sui, Hongguang

Abstract

CO2injection can simultaneously enhance oil recovery and carbon storage, but the stability of petroleum-water-CO2emulsion affcet the production process and carbon storage. Emulsion characteristics is typically assessed via Nuclear Magnetic Resonance (NMR). It is essential to develop a theory to unlock the mechanisms of experimentation for harnessing the full potential of NMR in assessing emulsion stability and comprehending complex multiphase systems. The theory integrates experiments and a “quasi-lattice wave” physical model to understand the microscale mechanisms in NMR measurements of crude oil emulsion properties, and uncover the “transfer-transition” mode of 1H quantum excited states, explaining T2relaxation. This forms a theoretical basis for numerical simulation of CPMG (Carr-Purcell-Meiboom-Gill) experiments by random walk algorithms and the boundary annihilation hypothesis. A strong link between NMR T2times and various character properties of Petroleum-Water-CO2Emulsion samples is reflected, such as environmental scale, viscosity, CO2adsorption, and molecular thermal motion. Additionally, parameter Θ was proposed to characterize emulsion stability, for penetrating the theory presented in this paper, and to provide a scientifically rigorous representation of crude oil emulsion stability. The experiments with CO2treatment on crude oil emulsions were performed, demonstrating a highly effective theoretical correlation between interfacial tension in crude oil emulsions and CO2pressure, with an exceptional fit to experimental data (R2 > 0.99). When the pressure of CO2treatment exceeds a critical threshold (approximately 17 MPa in this study), there is a substantial reduction in viscosity. Furthermore, a comparative assessment of samples before and after CO2treatment using the parameter Θ demonstrated its reliability as an indicator of emulsion stability. It revealed a significant reduction of over 50% in the linear fit residual variance of Θ before and after subjecting the sample to 10 MPa carbon dioxide treatment, highlighting improved fluctuation stability. The slope of the Θ linear regression function signifies temporal stability. In a sample with 20% water content, the time evolution of the water phase decreases by 3.04%, while the oil phase experiences a substantial 57.77% reduction. Simultaneously, the midpoint of the range of the Θ linear regression function represents the environmental scale. The water phase environment scale increases by 8.72%, while the oil phase environment scale decreases by 8.74%, highlighting spatial evolution patterns.

Published
2024
Full Text
View/download PDF

40. Structural evolution induced by Au atom diffusion in Ag2S.

Author

Jin, Benjin, Zhang, Fu, Wu, Geng, Yuan, Tongwei, Wang, Qian, Zhou, Huang, Zhao, Yafei, Zhang, Genqiang, and Hong, Xun

Subjects
DIFFUSION, X-ray absorption near edge structure, TRANSMISSION electron microscopy, DIFFUSION processes, X-ray absorption, ATOMS
Abstract

Atom diffusion processes govern the structure and composition of core–shell nanomaterial, which play a crucial role in determining their properties. By using aberration-corrected high-resolution transmission electron microscopy and X-ray absorption near-edge structure spectroscopy in combination with in situ X-ray diffraction, we confirm that single-atom diffusion of Au to Ag2S occurs, and that the transition from the Au@Ag2S core–shell nanostructure to AuAgS–AuAgx or Ag3AuS2–AuAgx heterostructures was observed. Moreover, the phase of the ternary sulfide induced by Au single-atom diffusion in Ag2S is determined by the ratio of Au and Ag, thus exhibiting a significant difference in the photocatalytic activity performance. [ABSTRACT FROM AUTHOR]

Published
2019
Full Text
View/download PDF

42. Pt9Ni Wavelike Nanowires with High Activity for Oxygen Reduction Reactions.

Author

Lv, Pengfei, Jin, Benjin, Mei, Chao, Zhou, Huang, Yuan, Tongwei, Li, Zhijun, He, Hui, Shen, Xiaoshuang, and Hong, Xun

Subjects
PLATINUM compounds, NANOWIRES, OXYGEN reduction, CHEMICAL reactions, NANOSTRUCTURES
Abstract

Abstract: Platinum (Pt)‐based nanostructures are the most efficient catalysts for the oxygen reduction reaction (ORR) in acid media. Here, Pt9Ni wavelike nanowires (W‐NWs) have been synthesized by etching Pt3Ni@PtNi2 core–shell nanowires with 2,5‐dihydroxyterephthalic acid for 24 hours. Compared to the commercial Pt/C catalyst, the free‐standing Pt9Ni W‐NWs show improvements of up to 9.3 times for mass activity and 12.6 times for specific activity, respectively. [ABSTRACT FROM AUTHOR]

Published
2018
Full Text
View/download PDF

44. Pt 9 Ni Wavelike Nanowires with High Activity for Oxygen Reduction Reactions.

Author

Lv P, Jin B, Mei C, Zhou H, Yuan T, Li Z, He H, Shen X, and Hong X

Abstract

Platinum (Pt)-based nanostructures are the most efficient catalysts for the oxygen reduction reaction (ORR) in acid media. Here, Pt 9 Ni wavelike nanowires (W-NWs) have been synthesized by etching Pt 3 Ni@PtNi 2 core-shell nanowires with 2,5-dihydroxyterephthalic acid for 24 hours. Compared to the commercial Pt/C catalyst, the free-standing Pt 9 Ni W-NWs show improvements of up to 9.3 times for mass activity and 12.6 times for specific activity, respectively., (© 2018 Wiley-VCH Verlag GmbH & Co. KGaA, Weinheim.)

Published
2018
Full Text
View/download PDF

Catalog

Books, media, physical & digital resources
See catalog results