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497 results on '"Zhou, Weiya"'

102. Epitaxial Growth of Aligned and Continuous Carbon Nanofibers from Carbon Nanotubes

Author

Lin, Xiaoyang, primary, Zhao, Wei, additional, Zhou, Wenbin, additional, Liu, Peng, additional, Luo, Shu, additional, Wei, Haoming, additional, Yang, Guangzhi, additional, Yang, Junhe, additional, Cui, Jie, additional, Yu, Richeng, additional, Zhang, Lina, additional, Wang, Jiaping, additional, Li, Qunqing, additional, Zhou, Weiya, additional, Zhao, Weisheng, additional, Fan, Shoushan, additional, and Jiang, Kaili, additional

Published
2017
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104. Supercapacitors: Epidermal Supercapacitor with High Performance (Adv. Funct. Mater. 45/2016)

Author

Luan, Pingshan, primary, Zhang, Nan, additional, Zhou, Weiya, additional, Niu, Zhiqiang, additional, Zhang, Qiang, additional, Cai, Le, additional, Zhang, Xiao, additional, Yang, Feng, additional, Fan, Qingxia, additional, Zhou, Wenbin, additional, Xiao, Zhuojian, additional, Gu, Xiaogang, additional, Chen, Huiliang, additional, Li, Kewei, additional, Xiao, Shiqi, additional, Wang, Yanchun, additional, Liu, Huaping, additional, and Xie, Sishen, additional

Published
2016
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105. Epidermal Supercapacitor with High Performance

Author

Luan, Pingshan, primary, Zhang, Nan, additional, Zhou, Weiya, additional, Niu, Zhiqiang, additional, Zhang, Qiang, additional, Cai, Le, additional, Zhang, Xiao, additional, Yang, Feng, additional, Fan, Qingxia, additional, Zhou, Wenbin, additional, Xiao, Zhuojian, additional, Gu, Xiaogang, additional, Chen, Huiliang, additional, Li, Kewei, additional, Xiao, Shiqi, additional, Wang, Yanchun, additional, Liu, Huaping, additional, and Xie, Sishen, additional

Published
2016
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106. Ultrahigh-Power-Factor Carbon Nanotubes and an Ingenious Strategy for Thermoelectric Performance Evaluation

Author

Zhou, Wenbin, primary, Fan, Qingxia, additional, Zhang, Qiang, additional, Li, Kewei, additional, Cai, Le, additional, Gu, Xiaogang, additional, Yang, Feng, additional, Zhang, Nan, additional, Xiao, Zhuojian, additional, Chen, Huiliang, additional, Xiao, Shiqi, additional, Wang, Yanchun, additional, Liu, Huaping, additional, Zhou, Weiya, additional, and Xie, Sishen, additional

Published
2016
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112. Optical visualization and polarized light absorption of the single-wall carbon nanotube to verify intrinsic thermal applications

Author

Zhang, Xiao, primary, Song, Li, additional, Cai, Le, additional, Tian, Xuezeng, additional, Zhang, Qiang, additional, Qi, Xiaoying, additional, Zhou, Wenbin, additional, Zhang, Nan, additional, Yang, Feng, additional, Fan, Qingxia, additional, Wang, Yanchun, additional, Liu, Huaping, additional, Bai, Xuedong, additional, Zhou, Weiya, additional, and Xie, Sishen, additional

Published
2015
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113. Calculation of high pressure phase diagrams of binary alloy systems

Author

Zhou Weiya, Song Lizhu, and Zhao Muyu

Subjects
Chemistry, High pressure, Binary alloy, General Engineering, Thermodynamics, Reliability (statistics), Phase diagram
Abstract

High pressure phase diagrams of the Cd-Pb binary alloy system were calculated. The results not only tested the reliability of experimental values but also improved on the reported calculations.

Published
1990
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114. Detecting and Tuning the Interactions between Surfactants and Carbon Nanotubes for Their High‐Efficiency Structure Separation.

Author

Zeng, Xiang, Yang, Dehua, Liu, Huaping, Zhou, Naigen, Wang, Yanchun, Zhou, Weiya, Xie, Sishen, and Kataura, Hiromichi

Subjects
SURFACE active agents, CARBON nanotubes, SODIUM cholate, SODIUM dodecyl sulfate, CHROMATOGRAPHIC analysis
Abstract

Abstract: The selective interaction is systematically explored between the surfactants (sodium deoxycholate (DOC), sodium dodecyl sulfate (SDS), and sodium cholate (SC)) and the single‐wall carbon nanotubes (SWCNTs) by the gel chromatography technique. The results show that DOC preferentially interacts with small‐diameter semiconducting SWCNTs (S‐SWCNTs), exhibiting the strongest interaction strength for the SWCNTs, and the highest structural selectivity. The surfactant SC shows high selectivity toward the chiral angles of the SWCNTs. Its interaction strength and structural recognition ability are slightly higher than that of SDS but lower than that of DOC. Combining with the proved selectivity of SDS in the adsorption onto the S‐SWCNTs with small CC bond curvature, it is discovered that the synergistic effect of the triple surfactants amplified the interaction difference among the different SWCNTs and the gel, and thus dramatically improved the separation efficiency and structural purity of the SWCNTs, achieving the separation of distinct (n, m) single‐chirality species and their enantiomers in one step. This work not only provides deeper insights into the separation mechanism of SWCNTs with the surfactant sorting techniques, but also has a profound significance in studying the interaction between the SWCNTs and other small molecules. [ABSTRACT FROM AUTHOR]

Published
2018
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116. Biaxially stretchable supercapacitors based on the buckled hybrid fiber electrode array

Author

Zhang, Nan, primary, Zhou, Weiya, additional, Zhang, Qiang, additional, Luan, Pingshan, additional, Cai, Le, additional, Yang, Feng, additional, Zhang, Xiao, additional, Fan, Qingxia, additional, Zhou, Wenbin, additional, Xiao, Zhuojian, additional, Gu, Xiaogang, additional, Chen, Huiliang, additional, Li, Kewei, additional, Xiao, Shiqi, additional, Wang, Yanchun, additional, Liu, Huaping, additional, and Xie, Sishen, additional

Published
2015
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119. Mixed-phase Mesoporous TiO2Film for High Efficiency Perovskite Solar Cells

Author

Xiang, Yan, Zhuang, Jia, Ma, Zhu, Lu, Honglin, Xia, Haoran, Zhou, Weiya, Zhang, Tao, and Li, Haimin

Abstract

Mesoporous scaffold structures have played great roles in halide perovskite solar cells(PSCs), due to the excellent photovoltaic performance and commercial perspective of mesoporous PSCs. Here, we reported a mixed-phase TiO2mesoporous film as an efficient electron transport layer(ETL) for mesoporous perovskite solar cells. Due to the improved crystal phase, film thickness and nanoparticle size of TiO2layer, which were controlled by varying the one-step hydrothermal reaction time and annealing time, the PSCs exhibited an outstanding short circuit photocurrent density of 25.27 mA/cm2, and a maximum power conversion efficiency(PCE) of 19.87%. It is found that the ultra-high Jscattributes to the excellent film quality, light capturing and excellent electron transport ability of mixed-phase TiO2mesoporous film. The results indicate that mix-phase mesoporous metal oxide films could be a promising candidate for producing effective ETLs and high efficiency PSCs.

Published
2019
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120. A repeated halving approach to fabricate ultrathin single-walled carbon nanotube films for transparent supercapacitors

Author

Niu, Zhiqiang, Zhou, Weiya, Chen, Jun, Feng, Guoxing, Li, Hong, Hu, Yong-Sheng, Ma, Wenjun, Dong, Haibo, Li, Jinzhu, Xie, Sishen, Niu, Zhiqiang, Zhou, Weiya, Chen, Jun, Feng, Guoxing, Li, Hong, Hu, Yong-Sheng, Ma, Wenjun, Dong, Haibo, Li, Jinzhu, and Xie, Sishen

Abstract

Ultrathin SWCNT transparent and conductive films on flexible and transparent substrates are prepared via repeatedly halving the directly grown SWCNT films and flexible and transparent supercapacitors with excellent performance were fabricated.

Published
2013

121. A 'skeleton/skin'strategy for preparing ultrathin free-standing single-walled carbon nanotube/polyaniline films for high performance supercapacitor electrodes

Author

Niu, Zhiqiang, Luan, Pingshan, Shao, Qi, Dong, Haibo, Li, Jinzhu, Chen, Jun, Zhao, Duan, Cai, Le, Zhou, Weiya, Chen, Xiaodong, Xie, Sishen, Niu, Zhiqiang, Luan, Pingshan, Shao, Qi, Dong, Haibo, Li, Jinzhu, Chen, Jun, Zhao, Duan, Cai, Le, Zhou, Weiya, Chen, Xiaodong, and Xie, Sishen

Abstract

One of the most critical aspects in the preparation of single-walled carbon nanotubes (SWCNTs)/ conducting polymer hybrid electrodes is to improve the energy density without seriously deteriorating their high power capability. Here, we report a ‘‘skeleton/skin’’ strategy for the preparation of freestanding, thin and flexible SWCNT/polyaniline (PANI) hybrid films by a simple in situ electrochemical polymerization method using directly grown SWCNT films with a continuous reticulate structure as template. In situ electrochemical polymerization can achieve effective deposition of PANI onto the surface of SWCNT bundles in the films and control the morphology and microstructure of the SWCNT/PANI hybrid films. In a SWCNT/PANI hybrid film, the directly grown SWCNT film with continuous reticulate architecture acts as the skeleton and PANI layers act as the skin. This unique continuous ‘‘skeleton/skin’’ structure ensures that these hybrid films have much higher conductivity compared to SWCNT/PANI composite films based on post-deposition SWCNT films. Flexible supercapacitors have been fabricated using the SWCNT/PANI hybrid films as both electrodes and charge collectors without metallic current collectors. High energy and power densities (131 W h kg 1 and 62.5 kW kg 1, respectively) have been achieved for the optimized assembly. The high electrical conductivity and flexibility, in combination with continuous porous architecture, suggests that the asprepared ultrathin free-standing SWCNT/PANI hybrid films have significant potential as promising electrode materials for thin, lightweight and flexible energy storage devices with high performance.

Published
2012

122. Compact-designed supercapacitors using free-standing single-walled carbon nanotube films

Author

Niu, Zhiqiang, Zhou, Weiya, Chen, Jun, Feng, Guoxing, Li, Hong, Ma, Wenjun, Li, Jinzhu, Dong, Haibo, Ren, Yan, Zhao, Duan, Xie, Sishen, Niu, Zhiqiang, Zhou, Weiya, Chen, Jun, Feng, Guoxing, Li, Hong, Ma, Wenjun, Li, Jinzhu, Dong, Haibo, Ren, Yan, Zhao, Duan, and Xie, Sishen

Abstract

We reported the realization of assembling compact-designed supercapacitors using large-scaled freestanding and flexible single-walled carbon nanotube (SWCNT) films as both anode and cathode. A prototype of the processing procedures was developed to obtain the uniform spreading of the SWCNT films onto the separators serving as both electrodes and charge collectors without metallic current collectors, leading to a simplified and lightweight architecture. The area of SWCNT film on a separator can be scaled up and its thickness can be extended. High energy and power densities (43.7 Wh kg-1 and 197.3 kW kg-1, respectively) were achieved from the prepared SWCNT film-based compact-designed supercapacitors with small equivalent series resistance. The specific capacitance of this kind of compact-designed SWCNT film supercapacitor is about 35 F g-1. These results clearly show the potential application of free-standing SWCNT film in compact-designed supercapacitor with enhanced performance and significantly improved energy and power densities.

Published
2011

125. Super-stretchable, Transparent Carbon Nanotube-Based Capacitive Strain Sensors for Human Motion Detection

Author

Cai, Le, primary, Song, Li, additional, Luan, Pingshan, additional, Zhang, Qiang, additional, Zhang, Nan, additional, Gao, Qingqing, additional, Zhao, Duan, additional, Zhang, Xiao, additional, Tu, Min, additional, Yang, Feng, additional, Zhou, Wenbin, additional, Fan, Qingxia, additional, Luo, Jun, additional, Zhou, Weiya, additional, Ajayan, Pulickel M., additional, and Xie, Sishen, additional

Published
2013
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131. Surface modification effect on photoluminescence of individual ZnO nanorods with different diameters

Author

Zhao, Duan, primary, Zhang, Xiaoxian, additional, Dong, Haibo, additional, Yang, Leijing, additional, Zeng, Qingsheng, additional, Li, Jinzhu, additional, Cai, Le, additional, Zhang, Xiao, additional, Luan, Pingshan, additional, Zhang, Qiang, additional, Tu, Min, additional, Wang, Sheng, additional, Zhou, Weiya, additional, and Xie, Sishen, additional

Published
2013
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