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Featured researches published by Yuan Lu.


ACS Applied Materials & Interfaces | 2018

Core-Sheath Paraffin-Wax-Loaded Nanofibers by Electrospinning for Heat Storage

Yuan Lu; Xiudi Xiao; Yongjun Zhan; Changmeng Huan; Shuai Qi; Haoliang Cheng; Gang Xu

Paraffin wax (PW) is widely used for smart thermoregulation materials due to its good thermal performance. However, the leakage and low thermal conductivity of PW hinder its application in the heat storage field. Accordingly, developing effective methods to address these issues is of great importance. In this study, we explored a facile approach to obtain PW-loaded core-sheath structured flexible nanofibers films via coaxial electrospinning technique. The PW as the core layer was successfully encapsulated by the sheath-layer poly(methyl methacrylate). The diameter of the fiber core increased from 395 to 848 nm as the core solution speed rate increased from 0.1 to 0.5 mL/h. In addition, it can be seen that higher core solution speed rate could lead to higher PW encapsulation efficiency according to the transmission electron microscopy results. The core-sheath nanofiber films, moreover, possessed the highest latent heat of 58.25 J/g and solidifying enthalpy of -56.49 J/g. In addition, we found that after 200 thermal cycles, there was little change in latent heat, which demonstrated that it is beneficial for the PW-loaded core-sheath structure to overcome the leakage issue and enhance thermal stability properties for the thermoregulation film.


AOPC 2017: Optoelectronics and Micro/Nano-Optics | 2017

High performance VO2 thin films fabricated by room-temperature reactive magnetron sputtering and rapid thermal annealing

Yongjun Zhan; Xiudi Xiao; Yuan Lu; Ziyi Cao; Haoliang Cheng; Jifu Shi; Gang Xu

The VOx thin films are successfully prepared on glass substrate by reactive magnetron sputtering at room-temperature, and subsequently annealed by rapid thermal annealing system in N2 from 0.5Pa to 10000Pa. The effects of annealing pressure on the optical performance and phase transition temperature (Tc) of VOx thin films are systematically investigated. The results show that the VOx thin films exhibit good performance with Tlum of 28.17%, ΔTsol of 12.69%, and Tc of 42. The annealing pressure had an obvious influence on the grain size, which can be attributed to light scattering effects by gas molecule. Compared with oxygen vacancy defects, the grain size plays a decisive role in the regulation of Tc. The restricting the growth of grain can be reduced the Tc, and a little deterioration effect on optical performance can be observed. In addition, the method in this paper not only depressed the Tc, but also simplified the process and improved efficiency, which will provide guidance for the preparation and application of VOx thin films.


Solar Energy Materials and Solar Cells | 2018

Enhanced thermal stability and thermochromic properties of VOx-based thin films by room-temperature magnetron sputtering

Yongjun Zhan; Xiudi Xiao; Yuan Lu; Ziyi Cao; Shuai Qi; Changmeng Huan; Haoliang Cheng; Jifu Shi; Gang Xu


Applied Surface Science | 2017

Transparent optically vanadium dioxide thermochromic smart film fabricated via electrospinning technique

Yuan Lu; Xiudi Xiao; Ziyi Cao; Yongjun Zhan; Haoliang Cheng; Gang Xu


Ceramics International | 2018

Functional transparent nanocomposite film with thermochromic and hydrophobic properties fabricated by electrospinning and hot-pressing approach

Yuan Lu; Xiudi Xiao; Yongjun Zhan; Ziyi Cao; Haoliang Cheng; Changmeng Huan; Shuai Qi; Gang Xu


Materials Letters | 2017

Tunable simultaneously visible-light and near-infrared transmittance for VO2/SiO2 composite films to enhance thermochromic properties

Ziyi Cao; Yuan Lu; Xiudi Xiao; Yongjun Zhan; Haoliang Cheng; Gang Xu


Surfaces and Interfaces | 2017

The growth mechanism of VO2 multilayer thin films with high thermochromic performance prepared by RTA in air

Yongjun Zhan; Xiudi Xiao; Yuan Lu; Ziyi Cao; Shuai Qi; Changmeng Huan; Cantao Ye; Haoliang Cheng; Jifu Shi; Xueqing Xu; Gang Xu


Chemical Engineering Journal | 2019

Novel smart textile with phase change materials encapsulated core-sheath structure fabricated by coaxial electrospinning

Yuan Lu; Xiudi Xiao; Juan Fu; Changmeng Huan; Shuai Qi; Yongjun Zhan; Yanqing Zhu; Gang Xu


Journal of Alloys and Compounds | 2018

One-step solvothermal synthesis of V2O3@C nanoparticles as anode materials for lithium-ion battery

Changmeng Huan; Xinyue Zhao; Xiudi Xiao; Yuan Lu; Shuai Qi; Yongjun Zhan; Lingzhi Zhang; Gang Xu


Colloids and Surfaces A: Physicochemical and Engineering Aspects | 2018

Green nano-encapsulation technique for preparation of phase change nanofibers mats with core-sheath structure

Yuan Lu; Xiudi Xiao; Jiamei Mo; Changmeng Huan; Shuai Qi; Yongjun Zhan; Yanqing Zhu; Gang Xu

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Gang Xu

Chinese Academy of Sciences

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Xiudi Xiao

Chinese Academy of Sciences

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Yongjun Zhan

Chinese Academy of Sciences

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Changmeng Huan

Chinese Academy of Sciences

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Haoliang Cheng

Chinese Academy of Sciences

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Shuai Qi

University of Science and Technology of China

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Ziyi Cao

Chinese Academy of Sciences

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Jifu Shi

Chinese Academy of Sciences

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Yanqing Zhu

Chinese Academy of Sciences

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Cantao Ye

Chinese Academy of Sciences

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