Cactus-like double-shell structured SiO2@TiO2 microspheres: Fabrication, electrorheological performances and microwave absorption

Xuqiang Ji; Wenling Zhang; Wenpeng Jia; Xiaoxia Wang; Yu Tian; Li Deng; Jingquan Liu

doi:10.1016/j.jiec.2017.07.013

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Cactus-like double-shell structured SiO2@TiO2 microspheres: Fabrication, electrorheological performances and microwave absorption

Xuqiang Ji, Wenling Zhang, Wenpeng Jia, Xiaoxia Wang, Yu Tian, Li Deng and Jingquan Liu

Journal of industrial and engineering chemistry (Seoul, Korea), Vol.56, pp.203-211

12/25/2017

DOI: https://doi.org/10.1016/j.jiec.2017.07.013

Abstract

Electrorheology

Electromagnetic wave attenuation

Double-shell

Cactus-like

TiO2

The cactus-like double-shell structured SiO2@TiO2 microspheres (CDS SiO2@TiO2 microspheres) with high dielectric properties were successfully fabricated and utilized as high-performance electrorheological (ER) fluids and microwave absorbing materials. The SiO2 nanospheres with average diameters of 190nm were synthesized by the hydrolysis of tetraethyl orthosilicate (TEOS), and used as the core for the first coating layer of TiO2 achieved by sol-gel method. The final cactus-like TiO2 layer was prepared via a hydrothermal method. The morphology of the resultant samples was characterized via transmission electron microscopy (TEM), scanning electron microscopy (SEM) and scanning transmission electron microscopy (STEM). This novel CDS SiO2@TiO2 microspheres based suspension exhibited improved ER properties compared to conventional bare SiO2 spheres.

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Title: Cactus-like double-shell structured SiO2@TiO2 microspheres: Fabrication, electrorheological performances and microwave absorption
Creators: Xuqiang Ji - College of Materials Science and Engineering, Institute for Graphene Applied Technology Innovation, Laboratory of Fiber Materials and Modern Textile, The Growing Base for State Key Laboratory, Collaborative Innovation Centre for Marine Biomass Fibers, Qingdao University, Qingdao 266071, China
Wenling Zhang - College of Materials Science and Engineering, Institute for Graphene Applied Technology Innovation, Laboratory of Fiber Materials and Modern Textile, The Growing Base for State Key Laboratory, Collaborative Innovation Centre for Marine Biomass Fibers, Qingdao University, Qingdao 266071, China
Wenpeng Jia - State Key Laboratory of Tribology, Tsinghua University, Beijing 100084, China
Xiaoxia Wang - College of Materials Science and Engineering, Institute for Graphene Applied Technology Innovation, Laboratory of Fiber Materials and Modern Textile, The Growing Base for State Key Laboratory, Collaborative Innovation Centre for Marine Biomass Fibers, Qingdao University, Qingdao 266071, China
Yu Tian - State Key Laboratory of Tribology, Tsinghua University, Beijing 100084, China
Li Deng - College of Materials Science and Engineering, Institute for Graphene Applied Technology Innovation, Laboratory of Fiber Materials and Modern Textile, The Growing Base for State Key Laboratory, Collaborative Innovation Centre for Marine Biomass Fibers, Qingdao University, Qingdao 266071, China
Jingquan Liu - College of Materials Science and Engineering, Institute for Graphene Applied Technology Innovation, Laboratory of Fiber Materials and Modern Textile, The Growing Base for State Key Laboratory, Collaborative Innovation Centre for Marine Biomass Fibers, Qingdao University, Qingdao 266071, China
Publication Details: Journal of industrial and engineering chemistry (Seoul, Korea), Vol.56, pp.203-211
Publisher: Elsevier B.V
Identifiers: 9923972827101921
Academic Unit: Department of Chemistry
Language: English
Resource Type: Journal article

Cactus-like double-shell structured SiO2@TiO2 microspheres: Fabrication, electrorheological performances and microwave absorption

Abstract

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