Self-template derived CuO nanowires assembled microspheres and its gas sensing properties

Abstract Development of high-performance p-type semiconductor gas sensors especially the fast response/recovery speed and high response based on inexpensive non-noble metal oxides without doping or noble metal decoration for the practical applications of gas sensor are highly desirable. In this work, the rapid room-temperature synthesis of innovative and unique parallel copper oxide nanowires assembled microspheres (CuO NMs) with excellent gas sensing property is reported. The morphological characteristics, surface area, porosity, chemical composition and the chemical conversion process are studied carefully. As a result, the CuO NMs exhibit a relatively high gas response, especially the fast response and recovery time to 100 ppm n-propanol vapor at relatively low operating temperature of 190 °C, respectively. This new rapid self-template derived functional nanomaterials will offer a promising platform for highly sensitive and real-time monitoring p-type gas sensors.

[1]  Xu Liu,et al.  Biomorphic synthesis of hollow CuO fibers for low-ppm-level n-propanol detection via a facile solution combustion method , 2016 .

[2]  Jie Sun,et al.  CuO nanoparticles fabricated by direct thermo-oxidation of sputtered Cu film for VOCs detection , 2015 .

[3]  K. Vijayalakshmi,et al.  Effect of pyrolytic temperature on the properties of nano-structured Cuo optimized for ethanol sensing applications , 2013, Journal of Materials Science: Materials in Electronics.

[4]  Jae-Hun Kim,et al.  Growth and sensing properties of networked p-CuO nanowires , 2015 .

[5]  Shuichi Kagawa,et al.  Study on a Detector for Gaseous Components Using Semiconductive Thin Films. , 1966 .

[6]  Shengzhong Liu,et al.  Synthesis of CuO microstructures with controlled shape and size and their exposed facets induced enhanced ethanol sensing performance , 2016 .

[7]  T. Seiyama,et al.  A New Detector for Gaseous Components Using Semiconductive Thin Films. , 1962 .

[8]  Jong-Heun Lee,et al.  Selective Detection of NO2 Using Cr-Doped CuO Nanorods , 2012, Sensors.

[9]  G. Korotcenkov.  Gas response control through structural and chemical modification of metal oxide films: state of the art and approaches , 2005 .

[10]  Chongwu Zhou,et al.  Detection of NO2 down to ppb levels using individual and multiple In2O3 nanowire devices , 2004 .

[11]  Zeng Wen,et al.  Gas-sensing properties of SnO2–TiO2-based sensor for volatile organic compound gas and its sensing mechanism , 2010 .

[12]  Xingjiu Huang,et al.  Novel 3D hierarchical cotton-candy-like CuO: surfactant-free solvothermal synthesis and application in As(III) removal. , 2012, ACS applied materials & interfaces.

[13]  Il-Doo Kim,et al.  Thin-walled NiO tubes functionalized with catalytic Pt for highly selective C2H5OH sensors using electrospun fibers as a sacrificial template. , 2011, Chemical communications.

[14]  N. Hashimoto,et al.  Effect of poly ethylene glycol addition on the microstructure and sensor characteristics of SnO2 thin films prepared by sol–gel method , 2003 .

[15]  N. G. Cho,et al.  Gas sensing properties of p-type hollow NiO hemispheres prepared by polymeric colloidal templating method , 2011 .

[16]  Guozhong Cao,et al.  Template-free solvothermal synthesis of hollow hematite spheres and their applications in gas sensors and Li-ion batteries , 2011 .

[17]  Xin Guo,et al.  NO sensing by single crystalline WO3 nanowires , 2015 .

[18]  N. Yamazoe,et al.  Oxide Semiconductor Gas Sensors , 2003 .

[19]  Geraint Williams,et al.  Gas sensing properties of nanocrystalline metal oxide powders produced by a laser evaporation technique , 1998 .

[20]  F. Zhang,et al.  Hierarchically Porous CuO Hollow Spheres Fabricated via a One-Pot Template-Free Method for High-Performance Gas Sensors , 2012 .

[21]  X. Lou,et al.  CuO nanostructures supported on Cu substrate as integrated electrodes for highly reversible lithium storage. , 2011, Nanoscale.

[22]  Ulrich Simon,et al.  Metal and metal oxide nanoparticles in chemiresistors: does the nanoscale matter? , 2006, Small.

[23]  Rajesh Kumar,et al.  Development of highly sensitive and selective ethanol sensor based on lance-shaped CuO nanostructures , 2016 .

[24]  Ji-Wook Yoon,et al.  Gas sensing characteristics of p-type Cr2O3 and Co3O4 nanofibers depending on inter-particle connectivity , 2014 .

[25]  J. H. Lee,et al.  Design of a highly sensitive and selective C2H5OH sensor using p-type Co3O4 nanofibers , 2012 .

[26]  Thomas Maier,et al.  Gas Sensing Properties of Novel CuO Nanowire Devices , 2013 .

[27]  Elson Longo,et al.  The Role of Hierarchical Morphologies in the Superior Gas Sensing Performance of CuO‐Based Chemiresistors , 2013 .

[28]  Feng Zhang,et al.  CuO Nanosheets for Sensitive and Selective Determination of H2S with High Recovery Ability , 2010 .

[29]  T. Wang,et al.  Surface accumulation conduction controlled sensing characteristic of p-type CuO nanorods induced by oxygen adsorption , 2007 .

[30]  J. Zhan,et al.  Fabrication and Gas‐Sensing Properties of Porous ZnO Nanoplates , 2008 .

[31]  Xintang Huang,et al.  Ultra-thin nanosheets-assembled hollowed-out hierarchical α-Fe2O3 nanorods: Synthesis via an interface reaction route and its superior gas sensing properties , 2016 .

[32]  Giorgio Sberveglieri,et al.  Stable and highly sensitive gas sensors based on semiconducting oxide nanobelts , 2002 .

[33]  Guohong Qiu,et al.  Facile Microwave-Assisted Hydrothermal Synthesis of CuO Nanomaterials and Their Catalytic and Electrochemical Properties , 2012 .

[34]  Qing Peng,et al.  Nearly Monodisperse Cu2O and CuO Nanospheres: Preparation and Applications for Sensitive Gas Sensors , 2006 .

[35]  A. Taubert,et al.  CuO Nanoparticles from the strongly hydrated ionic liquid precursor (ILP) tetrabutylammonium hydroxide: evaluation of the ethanol sensing activity. , 2012, ACS applied materials & interfaces.

[36]  Soon-Don Choi,et al.  SnO2 thin film gas sensor fabricated by ion beam deposition , 2004 .

[37]  N. Yamazoe.  New approaches for improving semiconductor gas sensors , 1991 .

[38]  Kun Liu,et al.  Synthesis of porous α-Fe2O3 microrods via in situ decomposition of FeC2O4 precursor for ultra-fast responding and recovering ethanol gas sensor , 2016 .

[39]  Martin Moskovits,et al.  Detection of CO and O2 Using Tin Oxide Nanowire Sensors , 2003 .

[40]  Guoxiu Wang,et al.  Highly ordered mesoporous Cr2O3 materials with enhanced performance for gas sensors and lithium ion batteries. , 2012, Chemical communications.

[41]  David Wexler,et al.  Chemical synthesis, characterisation and gas sensing performance of copper oxide nanoribbons , 2008 .

[42]  Q. Shen,et al.  The shape-controlled synthesis and novel lithium storage mechanism of as-prepared CuC2O4·xH2O nanostructures , 2013 .