典型文献
Enhanced detection of ppb-level NO2 by uniform Pt-doped ZnSnO3 nanocubes
文献摘要：
ZnSnO3 nanocubes (ZSNCs) with various Pt concentrations (i.e., 1at％, 2at％, and 5at％) were synthesized by a simple one-pot hy-drothermal method. The microstructures of pure and Pt-doped ZSNCs were characterized by X-ray diffractometry, scanning electron micro-scopy, transmission electron microscopy, energy-dispersive X-ray spectroscopy, and X-ray photoelectron spectroscopy. Results showed that the pure ZSNCs have a perovskite structure with a side length of approximately 600 nm; this length was reduced to 400 nm after Pt doping. Following doping, PtOx (PtO and PtO2) nanoparticles with a diameter of approximately 5 nm were uniformly coated on the surface of the ZS-NCs. Systematic investigation of the gas-sensing abilities of the nanocubes showed that the Pt-doped ZSNCs have excellent sensing properties toward nitrogen dioxide (NO2) gas in the operating temperature range of 75–175℃. Among the sensors prepared, that based on 1at％ Pt-doped ZSNCs exhibited the best response of 16.0 toward 500 ppb NO2 at 125℃; this response is over 11 times higher compared with that of pure ZS-NCs. The enhanced NO2 sensing mechanism of the Pt-doped ZSNCs may be attributed to the synergistic effects of catalytic activity and chem-ical sensitization by Pt doping.
文献关键词：
中图分类号：
作者姓名：
Yaoyu Yin;Yanbai Shen;Sikai Zhao;Ang Li;Rui Lu;Cong Han;Baoyu Cui;Dezhou Wei
作者机构：
School of Resources and Civil Engineering,Northeastern University,Shenyang 110819,China;State Key Laboratory of Rolling and Automation,Northeastern University,Shenyang 110189,China
文献出处：
引用格式：
[1]Yaoyu Yin;Yanbai Shen;Sikai Zhao;Ang Li;Rui Lu;Cong Han;Baoyu Cui;Dezhou Wei-.Enhanced detection of ppb-level NO2 by uniform Pt-doped ZnSnO3 nanocubes)[J].矿物冶金与材料学报,2022(06):1295-1303
A类：
ZSNCs,PtOx
B类：
Enhanced,detection,ppb,level,NO2,by,doped,ZnSnO3,nanocubes,various,concentrations,1at,2at,5at,were,synthesized,simple,one,pot,hy,drothermal,method,microstructures,pure,characterized,ray,diffractometry,scanning,transmission,microscopy,energy,dispersive,spectroscopy,photoelectron,Results,showed,that,have,perovskite,side,length,approximately,this,was,reduced,after,doping,Following,PtO2,nanoparticles,diameter,uniformly,coated,surface,Systematic,investigation,gas,sensing,abilities,excellent,properties,toward,nitrogen,dioxide,operating,temperature,range,Among,sensors,prepared,exhibited,best,response,over,times,higher,compared,enhanced,mechanism,may,attributed,synergistic,effects,catalytic,activity,chem,ical,sensitization
AB值：
0.494869
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