Solution-processed nickel oxide films and their liquefied petroleum gas sensing activity

JOURNAL OF ALLOYS AND COMPOUNDS

卷:695

Article

Mutkule, Sandesh U.^1,2  Navale, Sachin T.³  Jadhav, Vijaykumar V.²  Ambade, Swapnil B.⁴  Naushad, Mu.⁵  Sagar, Ashok D.¹  Patil, Vikas B.⁶  Stadler, Florian J.³  Mane, Rajaram S.^2,5 

[1] Swami Ramanand Teerth Marathwada Univ, Sch Chem Sci, Nanded 431606, India

[2] Swami Ramanand Teerth Marathwada Univ, Ctr Nanomat & Energy Devices, Nanded 431606, India

[3] Shenzhen Univ, Guangdong Res Ctr Interfacial Engn Funct Mat, Nanshan Dist Key Lab Biopolymers & Safety Evaluat, Shenzhen Key Lab Polymer Sci & Technol,Coll Mat S, Shenzhen 518060, Peoples R China

[4] Chonbuk Natl Univ, Sch Semicond & Chem Engn, 664-14,1 Ga Deokjin Dong, Jeonju 561756, Jeonbuk, South Korea

[5] King Saud Univ, Dept Chem, Coll Sci, Bldg 5, Riyadh, Saudi Arabia

[6] Solapur Univ, Funct Mat Res Lab, Sch Phys Sci, Solapur 413255, MS, India

关键词: Nickel oxide;    SILAR;    Gas sensing properties;    Response-recovery;    Modeling;   

DOI  :  10.1016/j.jallcom.2016.11.037

来源: Elsevier

【 摘 要 】

Present article demonstrates the facial synthesis of nickel oxide (NiO) films via an easy and cost-effective successive ionic layer adsorption and reaction (SILAR) method onto glass substrate using nickel (II) chloride as precursor and their gas sensing activity towards different target gases. Structural elucidation and elemental composition analysis measurements were conducted using X-ray diffraction, Raman and energy dispersive X-ray techniques, respectively. Platelet-type morphology was confirmed from the plane-view images recorded on field-emission scanning electron and transmission electron microscopes at different magnifications. Chemo-resistive performance of NiO films was carried out towards hazardous and explosive gases such as ammonia, methanol, ethanol, liquefied petroleum gas (LPG) and nitrogen dioxide as a function of working temperature and gas concentration. Amongst diverse gases, NiO sensor film exhibits better response of 72% to 5000 ppm LPG at lower operating temperature (180 degrees C). Effect of LPG concentration on gas response of the NiO film was systematically investigated and explored. Also, the synergistic interaction between LPG molecules and NiO nanoplates was studied and explored using potential barrier model. (C) 2016 Elsevier B.V. All rights reserved.

【 授权许可】

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