title: In situ immobilization of tin dioxide nanoparticles by nanoporous polymers scaffold toward monolithic humidity sensing devices.
abstract: Reported here is in situ immobilization of tin dioxide (SnO2) nanoparticles (NPs) within nanoporous polymer scaffolds for the development of monolithic humidity sensing devices. Through solvothermal polymerization of divinylbenzene (DVB) monomers in the interspaces of SnO2 fine powders, SnO2 NPs could be homogeneously immobilized in polymer matrices, forming a novel composite material. Immobilization of SnO2 NPs in nanoporous polymer matrices not only simplifies the fabrication process of NPs-based sensing devices, but also improves their adsorptive properties. The resultant nanoporous polymer/SnO2 NPs composites with adjustable SnO2 contents possess high BET surface areas, large pore sizes and pore volumes, thus they exhibit high adsorptive capacities for H2O vapor. As a general approach to NPs/nanoporous polymer composites, this work may open up a new way to nanomaterial-based sensing devices that features enhanced adsorptive property.
authors: State Key Laboratory on Integrated Optoelectronics, College of Electronic Science and Engineering, Jilin University, 2699 Qianjin Street, Changchun 130012, China.
authors: Shu
authors: S
authors: Wei
authors: State Key Laboratory on Integrated Optoelectronics, College of Electronic Science and Engineering, Jilin University, 2699 Qianjin Street, Changchun 130012, China.
authors: Dong-Dong
authors: DD
authors: Han
authors: State Key Laboratory on Integrated Optoelectronics, College of Electronic Science and Engineering, Jilin University, 2699 Qianjin Street, Changchun 130012, China.
authors: Li
authors: L
authors: Guo
authors: State Key Laboratory of Inorganic Synthesis and Preparative Chemistry, Jilin University, 2699 Qianjin Street, Changchun 130012, China.
authors: Yinyan
authors: Y
authors: He
authors: State Key Laboratory of Inorganic Synthesis and Preparative Chemistry, Jilin University, 2699 Qianjin Street, Changchun 130012, China.
authors: Hong
authors: H
authors: Ding
authors: State Key Laboratory on Integrated Optoelectronics, College of Electronic Science and Engineering, Jilin University, 2699 Qianjin Street, Changchun 130012, China. Electronic address: yonglaizhang@jlu.edu.cn.
authors: Yong-Lai
authors: YL
authors: Zhang
authors: Department of Chemistry, Zhejiang University, Hangzhou 310028, China.
authors: Feng-Shou
authors: FS
authors: Xiao
keywords: In situ immobilization; NPs-based sensing device; Nanoporous polymer scaffold