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292 results on '"Lin, Wenxin"'

11. Study of pristine and degraded blue quantum dot light-emitting diodes by transient electroluminescence measurements.

Author

Lin, Wenxin, Huang, Jiangxia, Li, Shuxin, Blom, Paul W. M., Feng, Haonan, Li, Jiahao, Lin, Xiongfeng, Guo, Yulin, Liang, Wenlin, Wu, Longjia, Niu, Quan, and Ma, Yuguang

Subjects
*QUANTUM dots, *ELECTROLUMINESCENCE, *QUANTUM dot LEDs, *LIGHT emitting diodes
Abstract

Limited stability of blue quantum dot light-emitting diodes (QLEDs) under current stress impedes commercialization. Multi-layer structures of the state-of-the-art blue QLEDs pose significant difficulty in the fundamental understanding of degradation mechanisms. Here, by applying transient electroluminescence measurements, we disentangle charge transport in both pristine and degraded blue QLEDs. By varying thicknesses of the charge transport layers and the emissive layer, respectively, we show that the charge transport in pristine QLEDs is primarily dominated by holes. Furthermore, the degradation of QLEDs under electrical stress is governed by the decrease of hole transport in the emissive quantum dot layer due to the formation of hole traps. [ABSTRACT FROM AUTHOR]

Published
2024
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12. Labor Neuraxial Analgesia and Its Association With Perinatal Outcomes in China in 2015–2016: A Propensity Score–Matched Analysis

Author

Meng, Xi, Ye, Jiangfeng, Qiao, Ping, Ren, Tai, Luo, Qing, Hu, Ling-qun, Zhang, Jun, Zhang, Jun, Zhang, Jingwen, Zhang, Lin, Xia, Hongwei, Ge, Jun, Ye, Xiaodong, Guo, Baoyan, Duan, Tao, Liu, Ming, Dai, Li, Chen, Yu, Zhang, Liping, Chen, Lichun, Wang, Yun, Wang, Xuemei, Liu, Haihong, Chen, Chongjun, Wang, Yeping, Wang, Guixiang, Liu, Aijue, Zhao, Huimin, Cai, Min, Qi, Hongbo, Yang, Xiaochang, Li, Fengqiu, Fan, Cuifang, Wei, Min, Ruan, Yan, Yu, Lihua, Xu, Qiulian, Zhang, Renying, Xu, Hualin, Zhang, Jinxiang, Ma, Xiaoli, Yuan, Deli, Zhu, Yulian, Gu, Fengchun, Wang, Dan, Liu, Dongming, Yuan, Ningxia, Shang, Lili, Lin, Wenxin, Tu, Suhua, Wang, Lanlan, Wu, Xiaolin, Zhu, Yanfen, Hou, Liqin, Zhang, Yuan, Lu, Zongjie, Zheng, Lingzhi, Gu, Chunmei, Fang, Jianhong, Liu, Zongyin, Ma, Li, Qin, Wenzhi, Yang, Xiaomeng, Yuan, Yue, Li, Hongmei, Zhang, Hongyu, Zhao, Xiumin, Yan, Lirong, Wang, Lina, Sun, Xiuli, Luo, Qingping, Liu, Lanping, Zhu, Juanying, Cai, Zhenyu, Yao, Qiong, Dong, Shengfeng, Yang, Yuanyuan, Cui, Zhanrong, He, Yongqing, Feng, Xiushan, He, Lvqiong, Zhang, Huixin, Li, Jiaping, Hu, Jifen, He, Lidan, Wu, Suhui, Yang, Lei, Huang, Dayuan, An, Hongbin, Li, Qiaoling, Zhao, Aimei, Liu, Ping, Fan, Shangrong, Zhang, Shuzeng, Zhang, Zhanhong, Fan, Enhe, Li, Jing, Yan, Lulu, Hou, Hongying, Xia, Yajing, Sun, Yan, Lu, Xuhong, Chen, Yan, Meng, Guomin, Chen, Fengxia, Qiu, Zhenya, Xu, Feixue, Teng, Fei, Wang, Xiulan, Liu, Lan, Li, Yingchun, Li, Xinping, Chen, Xiaoqin, Liu, Niying, Wang, Rong, Li, Lie, Yun, Yanli, and Liu), Jing

Published
2023
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26. Exploiting Interfacial ZnO-Cu Nanocomposites in Metal–Organic Framework Derived Catalysts: Enhancement of Catalytic Activity for CO2 Hydrogenation.

Author

Chen, Jiaxing, Xu, Wanyin, Zhang, Hao, Gao, Junkuo, Lin, Wenxin, and Li, Qianqian

Abstract

The nanointerfaces of ZnO-Cu and the size of active nanoparticles (NPs) play crucial roles in the development process of CO2 hydrogenation. Herein, Zn-PBC80 with an unsaturated coordination Zn2+ center was constructed from Zn-(NO3)2·6H2O and 3,5-bis-(4′-carboxyl-phenyl) pyridine (H2PBC), serving as an anchoring site for supporting Cu2+ and a platform for encapsulating NPs. The different loading concentrations of Cu2+ and pyrolysis of the MOFs-based precursor vary the chemical environments of the catalysts, resulting in different distributed states and average sizes of active sites. Specifically, the pyrolysis of Zn-PBC80-Cu-1 with a concentration ratio of 1:1 facilitates the construction of an interfacial ZnO-Cu nanocomposite and smaller NP size. Among a series of CO2 catalysts, the resultant ZnO-Cu-1-700 exhibits the best catalytic performance with a satisfying CO2 conversion rate (16.5%), outstanding CO selectivity (100%), and promoting catalytic stability over 30 h. The best catalytic performance could be attributed to the more stable electronic structure of metallic Cu NPs and the generation of oxygen vacancies resulting from the unique ZnO-Cu nanointerfaces among the catalysts. This discrepancy in catalytic performance indicates that the active nanointerfaces affects the electronic structure of active centers, providing valuable insight into the design of efficient catalysts for CO2 reduction. [ABSTRACT FROM AUTHOR]

Published
2024
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27. Mechanistic insights into the thermal–mechanical aging of the interface of cross‐linked polyethylene/silicone rubber.

Author

Zhang, Tianfeng, Zhang, Yunxiao, Zheng, Xin, Lin, Wenxin, Zhang, Zenghui, Chi, Zhengnan, Zhang, Jiarui, and Teng, Chenyuan

Subjects
SILICONE rubber, POLYETHYLENE, INTERFACIAL roughness, BREAKDOWN voltage, DIELECTRIC breakdown, DIELECTRIC properties, SYSTEM failures
Abstract

Cable accessory has the interface formed by cross‐linked polyethylene (XLPE)/silicone rubber (SiR), which is prone to surface discharge and thus causes the failure of cable system. This article conducts the simulated experiment of thermal–mechanical aging on the interface of XLPE/SiR. The interfacial breakdown and dielectric properties under different aging states are analyzed. It is found the interfacial aging process of XLPE can be divided into the recrystallization stage and the oxidation reaction stage. The former contributes to the interfacial roughness and thus the better insulating performance, whereas the latter leads to degradation of interface, and thus the worse insulating performance. In addition, combined with the established electric field model for the interface, the differences between thermal–mechanical aging and individual thermal aging on the interface are discussed. The sample under thermal–mechanical aging reaches the maximum interfacial breakdown voltage later than that under individual thermal aging, but their performance tends to be consistent in the later stage of aging. [ABSTRACT FROM AUTHOR]

Published
2024
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32. Development of PmCDA1-based high-efficiency cytidine base editors (ChyCBEs) incorporating a GmRad51 DNA-binding domain in soybean

Author

Bai, Mengyan, primary, Hu, Xinchen, additional, Lin, Wenxin, additional, Peng, Chunyan, additional, Kuang, Huaqin, additional, Zhong, Xiangbin, additional, Li, Yinghua, additional, Chen, Bo, additional, Wang, Jiyao, additional, Li, Huarong, additional, Liu, Baohui, additional, Kong, Fanjiang, additional, and Guan, Yuefeng, additional

Published
2023
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40. Differential fluorescent response to amino acids based on metal–organic framework Zn-PBC.

Author

Lin, Wenxin, Wang, Yijia, Zhang, Haoke, Shan, Kei Hoi, Si, Panpan, Yu, Shijiang, Wang, Zhen, Zhao, Dian, Gao, Junkuo, Wu, Minghua, and Tang, Ben Zhong

Subjects
*METAL-organic frameworks, *DIPYRRINS, *AMINO acids, *CARBOXYLIC acid derivatives, *FLUORESCENCE
Abstract

A novel metal–organic framework (MOF) Zn-PBC (H2PBC = pyridine-3,5-bis(phenyl-4-carboxylic acid)) was designed and synthesized via a solvothermal reaction with the H2PBC ligand, and produced a strong fluorescence. The material exhibited good stability and an ideal luminescent property in water. In addition, it was found that Zn-PBC displayed a different fluorescent response to different types of amino acids, and the mechanism was investigated. This research might give insight to the interaction between MOFs and amino acids, which would provide a strategy to fabricate MOF-based sensors for biomolecules in future. [ABSTRACT FROM AUTHOR]

Published
2023
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47. Architecture Design and Catalytic Activity: Non‐Noble Bimetallic CoFe/fe3O4 Core–Shell Structures for CO2 Hydrogenation

Author

Miao, Wenkang, primary, Hao, Ronghui, additional, Wang, Jingzhou, additional, Wang, Zihan, additional, Lin, Wenxin, additional, Liu, Heguang, additional, Feng, Zhenjie, additional, Lyu, Yingchun, additional, Li, Qianqian, additional, Jia, Dongling, additional, Ouyang, Runhai, additional, Cheng, Jipeng, additional, Nie, Anmin, additional, and Wu, Jinsong, additional

Published
2022
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50. A layered metal‐organic framework with acidic sites as a multiphase catalyst for Knoevenagel condensation.

Author

Lin, Wenxin, Chen, Ke, Lu, Wenwen, Ma, Xiaomin, Chen, Fengfeng, Xu, Feng, and Li, Yuanqiang

Subjects
*METAL-organic frameworks, *CONDENSATION, *CATALYSIS, *CATALYSTS, *CATALYTIC activity, *BENZALDEHYDE
Abstract

A layered metal‐organic framework Zn‐TPN was designed and fabricated by solvothermal reaction. The crystal structure was a lamellar structure, and the unique coordination pattern provided Lewis acid sites that could be employed as efficient catalytic sites. Zn‐TPN displayed a satisfactory catalytic effect for Knoevenagel condensation of malononitrile and benzaldehyde. At 75 °C, the conversion rate reached 96.96 % basing on the acidic sites after 1 hour, and it showed ideal catalytic activities for Knoevenagel condensation containing various aldehydes. Zn‐TPN could be utilized as a promising heterogeneous catalyst for Knoevenagel condensation. [ABSTRACT FROM AUTHOR]

Published
2023
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