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Defect-engineered pollen-shaped WO3 with interfacial catalysis toward sensitive humidity-tolerant DMTS detection
Ziyi Zhang1, Chuanxuan Zhou1, Ben Huang1
1Ministry of Education Key Laboratory for the Green Preparation and Application of Functional Materials, Hubei Key Laboratory of Polymer Materials, Hubei University, Wuhan 430062, PR China. huangben126@126.com.
None:
A rapeseed pollen biotemplate, sol-gel impregnation and calcination yielded hierarchically porous WO3. La doping formed WO3/La2WO6 heterojunctions, and Pt nanoparticles boosted interfacial catalysis. Owing to large specific surface area, heterojunction electron modulation and Pt catalytic activation, the composite delivered a high DMTS response of 520 with superior sensitivity, stability and humidity tolerance.
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