NDLI: Hydrogen gas sensing of Co$_{3}$O$_{4}$-Decorated WO$

Content Provider	Springer Nature Link
Author	Park, Sunghoon Sun, Gun Joo Kheel, Hyejoon Hyun, Soong Keun Jin, Changhyun Lee, Chongmu
Copyright Year	2016
Abstract	Co$_{3}$O$_{4}$ nanoparticle-decorated WO$_{3}$ nanowires were synthesized by the thermal oxidation of powders followed by a solvothermal process for Co$_{3}$O$_{4}$ decoration. The Co$_{3}$O$_{4}$ nanoparticle-decorated WO$_{3}$ nanowire sensor exhibited a stronger and faster electrical response to H$_{2}$ gas at 300 °C than the pristine WO$_{3}$ nanowire counterpart. The former showed faster response and recovery than the latter. The pristine and Co$_{3}$O$_{4}$-decorated WO$_{3}$ nanowire sensors showed the strongest response to H$_{2}$ gas at 225 and 200 °C, respectively. The Co$_{3}$O$_{4}$-decorated WO$_{3}$ nanowire sensor showed selectivity for H$_{2}$ gas over other reducing gases. The enhanced sensing performance of the Co$_{3}$O$_{4}$-decorated WO$_{3}$ nanowire sensor was explained by a combination of mechanisms: modulation of the depletion layer width forming at the Co$_{3}$O$_{4}$-WO$_{3}$ interface, modulation of the potential barrier height forming at the interface, high catalytic activity of Co$_{3}$O$_{4}$ for the oxidation of H$_{2}$, active adsorption of oxygen by the Co$_{3}$O$_{4}$ nanoparticle surface, and creation of more active adsorption sites by Co$_{3}$O$_{4}$ nanoparticles.
Starting Page	156
Ending Page	162
Page Count	7
File Format	PDF
ISSN	15989623
Journal	Metals and Materials
Volume Number	22
Issue Number	1
e-ISSN	20054149
Language	English
Publisher	The Korean Institute of Metals and Materials
Publisher Date	2016-01-04
Publisher Place	Seoul
Access Restriction	One Nation One Subscription (ONOS)
Subject Keyword	oxides Sol-gel hydrogen electrical conductivity/resistivity gas sensor Metallic Materials Operating Procedures, Materials Treatment Magnetism, Magnetic Materials Engineering Thermodynamics, Heat and Mass Transfer Characterization and Evaluation of Materials Continuum Mechanics and Mechanics of Materials
Content Type	Text
Resource Type	Article
Subject	Materials Chemistry Mechanics of Materials Metals and Alloys Condensed Matter Physics

Sl.	Authority	Responsibilities	Communication Details
1	Ministry of Education (GoI), Department of Higher Education	Sanctioning Authority	https://www.education.gov.in/ict-initiatives
2	Indian Institute of Technology Kharagpur	Host Institute of the Project: The host institute of the project is responsible for providing infrastructure support and hosting the project	https://www.iitkgp.ac.in
3	National Digital Library of India Office, Indian Institute of Technology Kharagpur	The administrative and infrastructural headquarters of the project	Dr. B. Sutradhar bsutra@ndl.gov.in
4	Project PI / Joint PI	Principal Investigator and Joint Principal Investigators of the project	Dr. B. Sutradhar bsutra@ndl.gov.in Prof. Saswat Chakrabarti will be added soon
5	Website/Portal (Helpdesk)	Queries regarding NDLI and its services	support@ndl.gov.in
6	Contents and Copyright Issues	Queries related to content curation and copyright issues	content@ndl.gov.in
7	National Digital Library of India Club (NDLI Club)	Queries related to NDLI Club formation, support, user awareness program, seminar/symposium, collaboration, social media, promotion, and outreach	clubsupport@ndl.gov.in
8	Digital Preservation Centre (DPC)	Assistance with digitizing and archiving copyright-free printed books	dpc@ndl.gov.in
9	IDR Setup or Support	Queries related to establishment and support of Institutional Digital Repository (IDR) and IDR workshops	idr@ndl.gov.in

Gas sensing properties of nano-crystalline SnO$_{2}$-CuO compounds

Development of thermoelectric module based on dense Ca$_{3}$Co$_{4}$O$_{9}$ and Zn$_{0.98}$Al$_{0.02}$O legs

Sol-gel synthesis and luminescence property of nanocrystalline Y$_{2}$O$_{3}$: Eu phosphor using metal nitrate precursors

NO$_{x}$ sensing characteristics of Ba$_{2}$WO$_{5}$ at an elevated temperatures

Effect of a surface treatment for LiNi$_{1/3}$Co$_{1/3}$Mn$_{1/3}$O$_{2}$ cathode material in lithium secondary batteries

Fabrication of a hydrogen sensor using palladium-coated silver dendrites formed electrochemically

Effect of ambient pressure on the selective growth of square In$_{2}$O$_{3}$ nanowires

Hydrogen gas detection of Nb$_{2}$O$_{5}$ nanoparticle-decorated CuO nanorod sensors

Properties of modified Nafion® membranes with heavy amount of (3-mercaptopropyl) trimethoxysilane prepared by long-term infiltration

Hydrogen gas sensing of Co$_{3}$O$_{4}$-Decorated WO$_{3}$ nanowires

Similar Documents

Gas sensing properties of nano-crystalline SnO$_{2}$-CuO compounds

Development of thermoelectric module based on dense Ca$_{3}$Co$_{4}$O$_{9}$ and Zn$_{0.98}$Al$_{0.02}$O legs

Sol-gel synthesis and luminescence property of nanocrystalline Y$_{2}$O$_{3}$: Eu phosphor using metal nitrate precursors

NO$_{x}$ sensing characteristics of Ba$_{2}$WO$_{5}$ at an elevated temperatures

Effect of a surface treatment for LiNi$_{1/3}$Co$_{1/3}$Mn$_{1/3}$O$_{2}$ cathode material in lithium secondary batteries

Fabrication of a hydrogen sensor using palladium-coated silver dendrites formed electrochemically

Effect of ambient pressure on the selective growth of square In$_{2}$O$_{3}$ nanowires

Hydrogen gas detection of Nb$_{2}$O$_{5}$ nanoparticle-decorated CuO nanorod sensors

Properties of modified Nafion® membranes with heavy amount of (3-mercaptopropyl) trimethoxysilane prepared by long-term infiltration

Hydrogen gas sensing of Co$_{3}$O$_{4}$-Decorated WO$_{3}$ nanowires