Gas sensing performance of nanocrystalline ZnO prepared by a simple route

Abstract The nanocrystalline powders of pure and $ Al^{3+} $-doped ZnO with hexagonal structure were prepared by a simple hydrothermal decomposition route. The structure and crystal phase of the powders were characterized by X-ray diffraction (XRD) and the microstructure by transmission electron mic...
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Autor*in:	Murade, P. A. [verfasserIn] Sangawar, V. S. [verfasserIn] Chaudhari, G. N. [verfasserIn] Kapse, V. D. [verfasserIn] Bajpeyee, A. U. [verfasserIn]

Format:	E-Artikel
Sprache:	Englisch

Erschienen:	2013

Schlagwörter:	nanocrystalline zinc oxide H S gas sensor selectivity recovery time

Übergeordnetes Werk:	Enthalten in: Materials Science-Poland - SP Versita, 2011, 31(2013), 3 vom: 23. Mai, Seite 298-305
Übergeordnetes Werk:	volume:31 ; year:2013 ; number:3 ; day:23 ; month:05 ; pages:298-305

Links:	Volltext

DOI / URN:	10.2478/s13536-013-0104-x

Katalog-ID:	SPR031740960

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allfields	10.2478/s13536-013-0104-x doi (DE-627)SPR031740960 (SPR)s13536-013-0104-x-e DE-627 ger DE-627 rakwb eng Murade, P. A. verfasserin aut Gas sensing performance of nanocrystalline ZnO prepared by a simple route 2013 Text txt rdacontent Computermedien c rdamedia Online-Ressource cr rdacarrier Abstract The nanocrystalline powders of pure and $ Al^{3+} $-doped ZnO with hexagonal structure were prepared by a simple hydrothermal decomposition route. The structure and crystal phase of the powders were characterized by X-ray diffraction (XRD) and the microstructure by transmission electron microscopy (TEM). All the compositions exhibited a single phase, suggesting a formation of solid solution between $ Al_{2} %$ O_{3} $ and ZnO. DC electrical properties of the prepared nanoparticles were studied by DC conductivity measurements. The indirect heating structure sensors based on pure and doped ZnO as sensitive materials were fabricated on an alumna tube with Au electrodes. Gas-sensing properties of the sensor elements were measured as a function of concentration of dopant, operating temperature and concentrations of the test gases. The pure ZnO exhibited high response to $ NH_{3} $ gas at an operating temperature of 200 °C. Doping of ZnO with $ Al^{3+} $ increased its response towards $ NH_{3} $ and the $ Al^{3+} $-doped ZnO (3.0 wt% $ Al_{2} %$ O_{3} $) showed the maximum response at 175 °C. The selectivity of the sensor elements for $ NH_{3} $ against different reducing gases like LPG, $ H_{2} $S and $ H_{2} $ was studied. The results on response and recovery time were also discussed. nanocrystalline zinc oxide (dpeaa)DE-He213 H (dpeaa)DE-He213 S (dpeaa)DE-He213 gas sensor (dpeaa)DE-He213 selectivity (dpeaa)DE-He213 recovery time (dpeaa)DE-He213 Sangawar, V. S. verfasserin aut Chaudhari, G. N. verfasserin aut Kapse, V. D. verfasserin aut Bajpeyee, A. U. verfasserin aut Enthalten in Materials Science-Poland SP Versita, 2011 31(2013), 3 vom: 23. Mai, Seite 298-305 (DE-627)618796967 (DE-600)2538962-2 0137-1399 nnns volume:31 year:2013 number:3 day:23 month:05 pages:298-305 https://dx.doi.org/10.2478/s13536-013-0104-x lizenzpflichtig Volltext GBV_USEFLAG_A SYSFLAG_A GBV_SPRINGER GBV_ILN_11 GBV_ILN_20 GBV_ILN_22 GBV_ILN_23 GBV_ILN_24 GBV_ILN_31 GBV_ILN_39 GBV_ILN_40 GBV_ILN_60 GBV_ILN_62 GBV_ILN_63 GBV_ILN_65 GBV_ILN_69 GBV_ILN_70 GBV_ILN_73 GBV_ILN_74 GBV_ILN_90 GBV_ILN_95 GBV_ILN_105 GBV_ILN_110 GBV_ILN_120 GBV_ILN_150 GBV_ILN_151 GBV_ILN_161 GBV_ILN_170 GBV_ILN_213 GBV_ILN_230 GBV_ILN_285 GBV_ILN_293 GBV_ILN_370 GBV_ILN_602 GBV_ILN_702 GBV_ILN_2005 GBV_ILN_2014 GBV_ILN_2190 GBV_ILN_4012 GBV_ILN_4037 GBV_ILN_4112 GBV_ILN_4125 GBV_ILN_4126 GBV_ILN_4249 GBV_ILN_4305 GBV_ILN_4306 GBV_ILN_4307 GBV_ILN_4313 GBV_ILN_4322 GBV_ILN_4323 GBV_ILN_4324 GBV_ILN_4325 GBV_ILN_4335 GBV_ILN_4338 GBV_ILN_4367 GBV_ILN_4700 AR 31 2013 3 23 05 298-305
spelling	10.2478/s13536-013-0104-x doi (DE-627)SPR031740960 (SPR)s13536-013-0104-x-e DE-627 ger DE-627 rakwb eng Murade, P. A. verfasserin aut Gas sensing performance of nanocrystalline ZnO prepared by a simple route 2013 Text txt rdacontent Computermedien c rdamedia Online-Ressource cr rdacarrier Abstract The nanocrystalline powders of pure and $ Al^{3+} $-doped ZnO with hexagonal structure were prepared by a simple hydrothermal decomposition route. The structure and crystal phase of the powders were characterized by X-ray diffraction (XRD) and the microstructure by transmission electron microscopy (TEM). All the compositions exhibited a single phase, suggesting a formation of solid solution between $ Al_{2} %$ O_{3} $ and ZnO. DC electrical properties of the prepared nanoparticles were studied by DC conductivity measurements. The indirect heating structure sensors based on pure and doped ZnO as sensitive materials were fabricated on an alumna tube with Au electrodes. Gas-sensing properties of the sensor elements were measured as a function of concentration of dopant, operating temperature and concentrations of the test gases. The pure ZnO exhibited high response to $ NH_{3} $ gas at an operating temperature of 200 °C. Doping of ZnO with $ Al^{3+} $ increased its response towards $ NH_{3} $ and the $ Al^{3+} $-doped ZnO (3.0 wt% $ Al_{2} %$ O_{3} $) showed the maximum response at 175 °C. The selectivity of the sensor elements for $ NH_{3} $ against different reducing gases like LPG, $ H_{2} $S and $ H_{2} $ was studied. The results on response and recovery time were also discussed. nanocrystalline zinc oxide (dpeaa)DE-He213 H (dpeaa)DE-He213 S (dpeaa)DE-He213 gas sensor (dpeaa)DE-He213 selectivity (dpeaa)DE-He213 recovery time (dpeaa)DE-He213 Sangawar, V. S. verfasserin aut Chaudhari, G. N. verfasserin aut Kapse, V. D. verfasserin aut Bajpeyee, A. U. verfasserin aut Enthalten in Materials Science-Poland SP Versita, 2011 31(2013), 3 vom: 23. Mai, Seite 298-305 (DE-627)618796967 (DE-600)2538962-2 0137-1399 nnns volume:31 year:2013 number:3 day:23 month:05 pages:298-305 https://dx.doi.org/10.2478/s13536-013-0104-x lizenzpflichtig Volltext GBV_USEFLAG_A SYSFLAG_A GBV_SPRINGER GBV_ILN_11 GBV_ILN_20 GBV_ILN_22 GBV_ILN_23 GBV_ILN_24 GBV_ILN_31 GBV_ILN_39 GBV_ILN_40 GBV_ILN_60 GBV_ILN_62 GBV_ILN_63 GBV_ILN_65 GBV_ILN_69 GBV_ILN_70 GBV_ILN_73 GBV_ILN_74 GBV_ILN_90 GBV_ILN_95 GBV_ILN_105 GBV_ILN_110 GBV_ILN_120 GBV_ILN_150 GBV_ILN_151 GBV_ILN_161 GBV_ILN_170 GBV_ILN_213 GBV_ILN_230 GBV_ILN_285 GBV_ILN_293 GBV_ILN_370 GBV_ILN_602 GBV_ILN_702 GBV_ILN_2005 GBV_ILN_2014 GBV_ILN_2190 GBV_ILN_4012 GBV_ILN_4037 GBV_ILN_4112 GBV_ILN_4125 GBV_ILN_4126 GBV_ILN_4249 GBV_ILN_4305 GBV_ILN_4306 GBV_ILN_4307 GBV_ILN_4313 GBV_ILN_4322 GBV_ILN_4323 GBV_ILN_4324 GBV_ILN_4325 GBV_ILN_4335 GBV_ILN_4338 GBV_ILN_4367 GBV_ILN_4700 AR 31 2013 3 23 05 298-305
allfields_unstemmed	10.2478/s13536-013-0104-x doi (DE-627)SPR031740960 (SPR)s13536-013-0104-x-e DE-627 ger DE-627 rakwb eng Murade, P. A. verfasserin aut Gas sensing performance of nanocrystalline ZnO prepared by a simple route 2013 Text txt rdacontent Computermedien c rdamedia Online-Ressource cr rdacarrier Abstract The nanocrystalline powders of pure and $ Al^{3+} $-doped ZnO with hexagonal structure were prepared by a simple hydrothermal decomposition route. The structure and crystal phase of the powders were characterized by X-ray diffraction (XRD) and the microstructure by transmission electron microscopy (TEM). All the compositions exhibited a single phase, suggesting a formation of solid solution between $ Al_{2} %$ O_{3} $ and ZnO. DC electrical properties of the prepared nanoparticles were studied by DC conductivity measurements. The indirect heating structure sensors based on pure and doped ZnO as sensitive materials were fabricated on an alumna tube with Au electrodes. Gas-sensing properties of the sensor elements were measured as a function of concentration of dopant, operating temperature and concentrations of the test gases. The pure ZnO exhibited high response to $ NH_{3} $ gas at an operating temperature of 200 °C. Doping of ZnO with $ Al^{3+} $ increased its response towards $ NH_{3} $ and the $ Al^{3+} $-doped ZnO (3.0 wt% $ Al_{2} %$ O_{3} $) showed the maximum response at 175 °C. The selectivity of the sensor elements for $ NH_{3} $ against different reducing gases like LPG, $ H_{2} $S and $ H_{2} $ was studied. The results on response and recovery time were also discussed. nanocrystalline zinc oxide (dpeaa)DE-He213 H (dpeaa)DE-He213 S (dpeaa)DE-He213 gas sensor (dpeaa)DE-He213 selectivity (dpeaa)DE-He213 recovery time (dpeaa)DE-He213 Sangawar, V. S. verfasserin aut Chaudhari, G. N. verfasserin aut Kapse, V. D. verfasserin aut Bajpeyee, A. U. verfasserin aut Enthalten in Materials Science-Poland SP Versita, 2011 31(2013), 3 vom: 23. Mai, Seite 298-305 (DE-627)618796967 (DE-600)2538962-2 0137-1399 nnns volume:31 year:2013 number:3 day:23 month:05 pages:298-305 https://dx.doi.org/10.2478/s13536-013-0104-x lizenzpflichtig Volltext GBV_USEFLAG_A SYSFLAG_A GBV_SPRINGER GBV_ILN_11 GBV_ILN_20 GBV_ILN_22 GBV_ILN_23 GBV_ILN_24 GBV_ILN_31 GBV_ILN_39 GBV_ILN_40 GBV_ILN_60 GBV_ILN_62 GBV_ILN_63 GBV_ILN_65 GBV_ILN_69 GBV_ILN_70 GBV_ILN_73 GBV_ILN_74 GBV_ILN_90 GBV_ILN_95 GBV_ILN_105 GBV_ILN_110 GBV_ILN_120 GBV_ILN_150 GBV_ILN_151 GBV_ILN_161 GBV_ILN_170 GBV_ILN_213 GBV_ILN_230 GBV_ILN_285 GBV_ILN_293 GBV_ILN_370 GBV_ILN_602 GBV_ILN_702 GBV_ILN_2005 GBV_ILN_2014 GBV_ILN_2190 GBV_ILN_4012 GBV_ILN_4037 GBV_ILN_4112 GBV_ILN_4125 GBV_ILN_4126 GBV_ILN_4249 GBV_ILN_4305 GBV_ILN_4306 GBV_ILN_4307 GBV_ILN_4313 GBV_ILN_4322 GBV_ILN_4323 GBV_ILN_4324 GBV_ILN_4325 GBV_ILN_4335 GBV_ILN_4338 GBV_ILN_4367 GBV_ILN_4700 AR 31 2013 3 23 05 298-305
allfieldsGer	10.2478/s13536-013-0104-x doi (DE-627)SPR031740960 (SPR)s13536-013-0104-x-e DE-627 ger DE-627 rakwb eng Murade, P. A. verfasserin aut Gas sensing performance of nanocrystalline ZnO prepared by a simple route 2013 Text txt rdacontent Computermedien c rdamedia Online-Ressource cr rdacarrier Abstract The nanocrystalline powders of pure and $ Al^{3+} $-doped ZnO with hexagonal structure were prepared by a simple hydrothermal decomposition route. The structure and crystal phase of the powders were characterized by X-ray diffraction (XRD) and the microstructure by transmission electron microscopy (TEM). All the compositions exhibited a single phase, suggesting a formation of solid solution between $ Al_{2} %$ O_{3} $ and ZnO. DC electrical properties of the prepared nanoparticles were studied by DC conductivity measurements. The indirect heating structure sensors based on pure and doped ZnO as sensitive materials were fabricated on an alumna tube with Au electrodes. Gas-sensing properties of the sensor elements were measured as a function of concentration of dopant, operating temperature and concentrations of the test gases. The pure ZnO exhibited high response to $ NH_{3} $ gas at an operating temperature of 200 °C. Doping of ZnO with $ Al^{3+} $ increased its response towards $ NH_{3} $ and the $ Al^{3+} $-doped ZnO (3.0 wt% $ Al_{2} %$ O_{3} $) showed the maximum response at 175 °C. The selectivity of the sensor elements for $ NH_{3} $ against different reducing gases like LPG, $ H_{2} $S and $ H_{2} $ was studied. The results on response and recovery time were also discussed. nanocrystalline zinc oxide (dpeaa)DE-He213 H (dpeaa)DE-He213 S (dpeaa)DE-He213 gas sensor (dpeaa)DE-He213 selectivity (dpeaa)DE-He213 recovery time (dpeaa)DE-He213 Sangawar, V. S. verfasserin aut Chaudhari, G. N. verfasserin aut Kapse, V. D. verfasserin aut Bajpeyee, A. U. verfasserin aut Enthalten in Materials Science-Poland SP Versita, 2011 31(2013), 3 vom: 23. Mai, Seite 298-305 (DE-627)618796967 (DE-600)2538962-2 0137-1399 nnns volume:31 year:2013 number:3 day:23 month:05 pages:298-305 https://dx.doi.org/10.2478/s13536-013-0104-x lizenzpflichtig Volltext GBV_USEFLAG_A SYSFLAG_A GBV_SPRINGER GBV_ILN_11 GBV_ILN_20 GBV_ILN_22 GBV_ILN_23 GBV_ILN_24 GBV_ILN_31 GBV_ILN_39 GBV_ILN_40 GBV_ILN_60 GBV_ILN_62 GBV_ILN_63 GBV_ILN_65 GBV_ILN_69 GBV_ILN_70 GBV_ILN_73 GBV_ILN_74 GBV_ILN_90 GBV_ILN_95 GBV_ILN_105 GBV_ILN_110 GBV_ILN_120 GBV_ILN_150 GBV_ILN_151 GBV_ILN_161 GBV_ILN_170 GBV_ILN_213 GBV_ILN_230 GBV_ILN_285 GBV_ILN_293 GBV_ILN_370 GBV_ILN_602 GBV_ILN_702 GBV_ILN_2005 GBV_ILN_2014 GBV_ILN_2190 GBV_ILN_4012 GBV_ILN_4037 GBV_ILN_4112 GBV_ILN_4125 GBV_ILN_4126 GBV_ILN_4249 GBV_ILN_4305 GBV_ILN_4306 GBV_ILN_4307 GBV_ILN_4313 GBV_ILN_4322 GBV_ILN_4323 GBV_ILN_4324 GBV_ILN_4325 GBV_ILN_4335 GBV_ILN_4338 GBV_ILN_4367 GBV_ILN_4700 AR 31 2013 3 23 05 298-305
allfieldsSound	10.2478/s13536-013-0104-x doi (DE-627)SPR031740960 (SPR)s13536-013-0104-x-e DE-627 ger DE-627 rakwb eng Murade, P. A. verfasserin aut Gas sensing performance of nanocrystalline ZnO prepared by a simple route 2013 Text txt rdacontent Computermedien c rdamedia Online-Ressource cr rdacarrier Abstract The nanocrystalline powders of pure and $ Al^{3+} $-doped ZnO with hexagonal structure were prepared by a simple hydrothermal decomposition route. The structure and crystal phase of the powders were characterized by X-ray diffraction (XRD) and the microstructure by transmission electron microscopy (TEM). All the compositions exhibited a single phase, suggesting a formation of solid solution between $ Al_{2} %$ O_{3} $ and ZnO. DC electrical properties of the prepared nanoparticles were studied by DC conductivity measurements. The indirect heating structure sensors based on pure and doped ZnO as sensitive materials were fabricated on an alumna tube with Au electrodes. Gas-sensing properties of the sensor elements were measured as a function of concentration of dopant, operating temperature and concentrations of the test gases. The pure ZnO exhibited high response to $ NH_{3} $ gas at an operating temperature of 200 °C. Doping of ZnO with $ Al^{3+} $ increased its response towards $ NH_{3} $ and the $ Al^{3+} $-doped ZnO (3.0 wt% $ Al_{2} %$ O_{3} $) showed the maximum response at 175 °C. The selectivity of the sensor elements for $ NH_{3} $ against different reducing gases like LPG, $ H_{2} $S and $ H_{2} $ was studied. The results on response and recovery time were also discussed. nanocrystalline zinc oxide (dpeaa)DE-He213 H (dpeaa)DE-He213 S (dpeaa)DE-He213 gas sensor (dpeaa)DE-He213 selectivity (dpeaa)DE-He213 recovery time (dpeaa)DE-He213 Sangawar, V. S. verfasserin aut Chaudhari, G. N. verfasserin aut Kapse, V. D. verfasserin aut Bajpeyee, A. U. verfasserin aut Enthalten in Materials Science-Poland SP Versita, 2011 31(2013), 3 vom: 23. Mai, Seite 298-305 (DE-627)618796967 (DE-600)2538962-2 0137-1399 nnns volume:31 year:2013 number:3 day:23 month:05 pages:298-305 https://dx.doi.org/10.2478/s13536-013-0104-x lizenzpflichtig Volltext GBV_USEFLAG_A SYSFLAG_A GBV_SPRINGER GBV_ILN_11 GBV_ILN_20 GBV_ILN_22 GBV_ILN_23 GBV_ILN_24 GBV_ILN_31 GBV_ILN_39 GBV_ILN_40 GBV_ILN_60 GBV_ILN_62 GBV_ILN_63 GBV_ILN_65 GBV_ILN_69 GBV_ILN_70 GBV_ILN_73 GBV_ILN_74 GBV_ILN_90 GBV_ILN_95 GBV_ILN_105 GBV_ILN_110 GBV_ILN_120 GBV_ILN_150 GBV_ILN_151 GBV_ILN_161 GBV_ILN_170 GBV_ILN_213 GBV_ILN_230 GBV_ILN_285 GBV_ILN_293 GBV_ILN_370 GBV_ILN_602 GBV_ILN_702 GBV_ILN_2005 GBV_ILN_2014 GBV_ILN_2190 GBV_ILN_4012 GBV_ILN_4037 GBV_ILN_4112 GBV_ILN_4125 GBV_ILN_4126 GBV_ILN_4249 GBV_ILN_4305 GBV_ILN_4306 GBV_ILN_4307 GBV_ILN_4313 GBV_ILN_4322 GBV_ILN_4323 GBV_ILN_4324 GBV_ILN_4325 GBV_ILN_4335 GBV_ILN_4338 GBV_ILN_4367 GBV_ILN_4700 AR 31 2013 3 23 05 298-305
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source	Enthalten in Materials Science-Poland 31(2013), 3 vom: 23. Mai, Seite 298-305 volume:31 year:2013 number:3 day:23 month:05 pages:298-305
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author	Murade, P. A.
spellingShingle	Murade, P. A. misc nanocrystalline zinc oxide misc H misc S misc gas sensor misc selectivity misc recovery time Gas sensing performance of nanocrystalline ZnO prepared by a simple route
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topic_title	Gas sensing performance of nanocrystalline ZnO prepared by a simple route nanocrystalline zinc oxide (dpeaa)DE-He213 H (dpeaa)DE-He213 S (dpeaa)DE-He213 gas sensor (dpeaa)DE-He213 selectivity (dpeaa)DE-He213 recovery time (dpeaa)DE-He213
topic	misc nanocrystalline zinc oxide misc H misc S misc gas sensor misc selectivity misc recovery time
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title	Gas sensing performance of nanocrystalline ZnO prepared by a simple route
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title_full	Gas sensing performance of nanocrystalline ZnO prepared by a simple route
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author_browse	Murade, P. A. Sangawar, V. S. Chaudhari, G. N. Kapse, V. D. Bajpeyee, A. U.
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title_sort	gas sensing performance of nanocrystalline zno prepared by a simple route
title_auth	Gas sensing performance of nanocrystalline ZnO prepared by a simple route
abstract	Abstract The nanocrystalline powders of pure and $ Al^{3+} $-doped ZnO with hexagonal structure were prepared by a simple hydrothermal decomposition route. The structure and crystal phase of the powders were characterized by X-ray diffraction (XRD) and the microstructure by transmission electron microscopy (TEM). All the compositions exhibited a single phase, suggesting a formation of solid solution between $ Al_{2} %$ O_{3} $ and ZnO. DC electrical properties of the prepared nanoparticles were studied by DC conductivity measurements. The indirect heating structure sensors based on pure and doped ZnO as sensitive materials were fabricated on an alumna tube with Au electrodes. Gas-sensing properties of the sensor elements were measured as a function of concentration of dopant, operating temperature and concentrations of the test gases. The pure ZnO exhibited high response to $ NH_{3} $ gas at an operating temperature of 200 °C. Doping of ZnO with $ Al^{3+} $ increased its response towards $ NH_{3} $ and the $ Al^{3+} $-doped ZnO (3.0 wt% $ Al_{2} %$ O_{3} $) showed the maximum response at 175 °C. The selectivity of the sensor elements for $ NH_{3} $ against different reducing gases like LPG, $ H_{2} $S and $ H_{2} $ was studied. The results on response and recovery time were also discussed.
abstractGer	Abstract The nanocrystalline powders of pure and $ Al^{3+} $-doped ZnO with hexagonal structure were prepared by a simple hydrothermal decomposition route. The structure and crystal phase of the powders were characterized by X-ray diffraction (XRD) and the microstructure by transmission electron microscopy (TEM). All the compositions exhibited a single phase, suggesting a formation of solid solution between $ Al_{2} %$ O_{3} $ and ZnO. DC electrical properties of the prepared nanoparticles were studied by DC conductivity measurements. The indirect heating structure sensors based on pure and doped ZnO as sensitive materials were fabricated on an alumna tube with Au electrodes. Gas-sensing properties of the sensor elements were measured as a function of concentration of dopant, operating temperature and concentrations of the test gases. The pure ZnO exhibited high response to $ NH_{3} $ gas at an operating temperature of 200 °C. Doping of ZnO with $ Al^{3+} $ increased its response towards $ NH_{3} $ and the $ Al^{3+} $-doped ZnO (3.0 wt% $ Al_{2} %$ O_{3} $) showed the maximum response at 175 °C. The selectivity of the sensor elements for $ NH_{3} $ against different reducing gases like LPG, $ H_{2} $S and $ H_{2} $ was studied. The results on response and recovery time were also discussed.
abstract_unstemmed	Abstract The nanocrystalline powders of pure and $ Al^{3+} $-doped ZnO with hexagonal structure were prepared by a simple hydrothermal decomposition route. The structure and crystal phase of the powders were characterized by X-ray diffraction (XRD) and the microstructure by transmission electron microscopy (TEM). All the compositions exhibited a single phase, suggesting a formation of solid solution between $ Al_{2} %$ O_{3} $ and ZnO. DC electrical properties of the prepared nanoparticles were studied by DC conductivity measurements. The indirect heating structure sensors based on pure and doped ZnO as sensitive materials were fabricated on an alumna tube with Au electrodes. Gas-sensing properties of the sensor elements were measured as a function of concentration of dopant, operating temperature and concentrations of the test gases. The pure ZnO exhibited high response to $ NH_{3} $ gas at an operating temperature of 200 °C. Doping of ZnO with $ Al^{3+} $ increased its response towards $ NH_{3} $ and the $ Al^{3+} $-doped ZnO (3.0 wt% $ Al_{2} %$ O_{3} $) showed the maximum response at 175 °C. The selectivity of the sensor elements for $ NH_{3} $ against different reducing gases like LPG, $ H_{2} $S and $ H_{2} $ was studied. The results on response and recovery time were also discussed.
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title_short	Gas sensing performance of nanocrystalline ZnO prepared by a simple route
url	https://dx.doi.org/10.2478/s13536-013-0104-x
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author2	Sangawar, V. S. Chaudhari, G. N. Kapse, V. D. Bajpeyee, A. U.
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up_date	2024-07-04T01:03:34.686Z
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Gas sensing performance of nanocrystalline ZnO prepared by a simple route

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