journal article·2018-02-23

Proton Conducting Polyoxometalate/Polypyrrole Films and Their Humidity Sensing Performance

Jun Miao, Yulong Chen, Yiwen Li, Jiaji Cheng, Qingyin Wu, Kar Wei Ng, Xin Cheng, Rui Chen, Chun Cheng, Zikang Tang

ACS Applied Nano Materials· Volume 1· Issue 2
Publisher page

Abstract

Proton conducting polyoxometalate has received considerable attention because of its unique structural properties. This article reports the fabrication of hybrid polymer films of polypyrrole/polyoxometalate and their resistive-type humidity sensing performance. Hybrid polymer films with different thicknesses were prepared via the coelectrodeposition of free pyrrole monomers with metal oxide clusters. A sensing response of 1.9 s and a recovery time of 1.1 s were exhibited in a 59 nm thick sample at 98% relative humidity and in a sensing range of 11–98% relative humidity. The outstanding sensing in the polypyrrole chain could be ascribed to the synergistic effect of the proton acid doping structure and the oxidation doping structure. The humidity sensor based on the nanocomposite was repeatable even after two months with good response and recovery times.
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Research context

OpenAlex topics: Polyoxometalates: Synthesis and Applications · Conducting polymers and applications · Metal-Organic Frameworks: Synthesis and Applications

SciVX discovery tags are terminology-based. OpenAlex topics are source-provided classifications.

Affiliations

Institute of Applied Physics and Materials Engineering, University of Macau, Avenida da Universidade, Taipa, Macau, P. R. China

Department of Materials Science and Engineering, Southern University of Science and Technology, Shenzhen, Guangdong 518055, P. R. China

Department of Electrical and Electronic Engineering, Southern University of Science and Technology, Shenzhen, Guangdong 518055, P. R. China

Chimie et Biologie des Membranes et des Nanoobjets (CBMN), CNRS—Université Bordeaux—Bordeaux INP, UMR 5248, Allée St Hilaire, Bat B14, 33607 Pessac, France

Department of Chemistry, Zhejiang University, Hangzhou, Zhejiang 310027, P. R. China

Funding

Universidade de Macau · Ministry of Science and Technology of the People's Republic of China · Innovation and Technology Commission · National Natural Science Foundation of China · Natural Science Foundation of Guangdong Province · Natural Science Foundation of Zhejiang Province · Shenzhen Science and Technology Innovation Committee

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