General Synthesis of Mixed Semiconducting Metal Oxide Hollow Spheres with Tunable Compositions for Low-Temperature Chemiresistive Sensing

2019 ◽  
Vol 11 (38) ◽  
pp. 35060-35067 ◽  
Author(s):  
Gen Wang ◽  
Xinran Zhou ◽  
Jing Qin ◽  
Yan Liang ◽  
Bingxi Feng ◽  
...  
Keyword(s):  
Low Temperature ◽  
Metal Oxide ◽  
Hollow Spheres ◽  
Chemiresistive Sensing ◽  
General Synthesis ◽  
Semiconducting Metal Oxide

A General Synthesis of Crumpled Metal Oxide Nanosheets as Superior Chemiresistive Sensing Layers

2019 ◽  
Vol 29 (31) ◽  
pp. 1903128 ◽  
Author(s):  
Rheehyun Kim ◽  
Ji‐Soo Jang ◽  
Dong‐Ha Kim ◽  
Joon‐Young Kang ◽  
Hee‐Jin Cho ◽  
...  
Keyword(s):  
Metal Oxide ◽  
Chemiresistive Sensing ◽  
General Synthesis

scholarly journals A General Synthesis Strategy for Hierarchical Porous Metal Oxide Hollow Spheres

2015 ◽  
Vol 2015 ◽  
pp. 1-7 ◽  
Author(s):  
Huadong Fu ◽  
Feng Ren ◽  
Weiming Su ◽  
Jinlin Yang ◽  
Ruiping Liu
Keyword(s):  
Metal Oxide ◽  
Hollow Spheres ◽  
Porous Metal ◽  
Spherical Shape ◽  
Tetrabutyl Titanate ◽  
Carbon Spheres ◽  
Hydrothermal Conditions ◽  
Synthesis Strategy ◽  
Hierarchical Porous ◽  
General Synthesis

The hierarchical porous TiO2hollow spheres were successfully prepared by using the hydrothermally synthesized colloidal carbon spheres as templates and tetrabutyl titanate as inorganic precursors. The diameter and wall thickness of hollow TiO2spheres were determined by the hard templates and concentration of tetrabutyl titanate. The particle size, dispersity, homogeneity, and surface state of the carbon spheres can be easily controlled by adjusting the hydrothermal conditions and adding certain amount of the surfactants. The prepared hollow spheres possessed the perfect spherical shape, monodispersity, and hierarchically pore structures, and the further experiment verified that the present approach can be used to prepare other metal oxide hollow spheres, which could be used as catalysis, fuel cells, lithium-air battery, gas sensor, and so on.

Application of 3D hierarchical monoclinic-type structural Sb-doped WO3 towards NO2 gas detection at low temperature

Nanoscale ◽  
2018 ◽  
Vol 10 (16) ◽  
pp. 7440-7450 ◽  
Author(s):  
Juanjuan Qi ◽  
Ke Chen ◽  
Yi Xing ◽  
Hua Fan ◽  
Hewei Zhao ◽  
...  
Keyword(s):  
Low Temperature ◽  
Metal Oxide ◽  
Gas Sensors ◽  
Three Dimensional ◽  
Gas Detection ◽  
Scientific Interest ◽  
Semiconducting Metal Oxide

Currently, the development of semiconducting metal oxide (SMO)-based gas sensors with innovative modification and three-dimensional (3D) structural designs has become a significant scientific interest due to their potential for addressing key technological challenges.

scholarly journals General Synthesis of Porous Mixed Metal Oxide Hollow Spheres with Enhanced Supercapacitive Properties

2016 ◽  
Vol 8 (27) ◽  
pp. 17226-17232 ◽  
Author(s):  
Qinghong Wang ◽  
Yuxuan Zhu ◽  
Jing Xue ◽  
Xinsheng Zhao ◽  
Zaiping Guo ◽  
...  
Keyword(s):  
Metal Oxide ◽  
Hollow Spheres ◽  
Mixed Metal Oxide ◽  
Mixed Metal ◽  
General Synthesis

Sulfur Dioxide Sensors

2021 ◽  
Keyword(s):  
Ionic Liquids ◽  
Sulfur Dioxide ◽  
Metal Oxide ◽  
Gas Sensors ◽  
Optical Sensors ◽  
Recent Progress ◽  
Amperometric Sensors ◽  
Metal Oxide Sensors ◽  
Semiconducting Metal Oxide

Recent progress on the sensing and monitoring of sulfur dioxide in the environment is presented. The sensing materials covered include potentiometric gas sensors, amperometric sensors, optical sensors involving colorimetric and fluorescence changes, sensors based on ionic liquids, semiconducting metal-oxide sensors, photoacoustic detectors and biosensors.

scholarly journals Low-temperature-processed metal oxide electron transport layers for efficient planar perovskite solar cells

Rare Metals ◽  
2021 ◽  
Author(s):  
Jia-Xing Song ◽  
Xin-Xing Yin ◽  
Zai-Fang Li ◽  
Yao-Wen Li
Keyword(s):  
Solar Cells ◽  
Electron Transport ◽  
Low Temperature ◽  
Metal Oxide ◽  
Low Cost ◽  
Perovskite Solar Cells ◽  
Transport Layer ◽  
Electron Transport Layer ◽  
Future Research ◽  
Low Temperature Preparation

Abstract As a promising photovoltaic technology, perovskite solar cells (pero-SCs) have developed rapidly over the past few years and the highest power conversion efficiency is beyond 25%. Nowadays, the planar structure is universally popular in pero-SCs due to the simple processing technology and low-temperature preparation. Electron transport layer (ETL) is verified to play a vital role in the device performance of planar pero-SCs. Particularly, the metal oxide (MO) ETL with low-cost, superb versatility, and excellent optoelectronic properties has been widely studied. This review mainly focuses on recent developments in the use of low-temperature-processed MO ETLs for planar pero-SCs. The optical and electronic properties of widely used MO materials of TiO2, ZnO, and SnO2, as well as the optimizations of these MO ETLs are briefly introduced. The commonly used methods for depositing MO ETLs are also discussed. Then, the applications of different MO ETLs on pero-SCs are reviewed. Finally, the challenge and future research of MO-based ETLs toward practical application of efficient planar pero-SCs are proposed. Graphical abstract

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