Chemiresistive sensing of volatile ammonia over zinc oxide encapsulated polypyrrole based nanocomposite

The present research manuscript demonstrates the chemiresistive sensing of volatile ammonia from the soil over zinc oxide encapsulated polypyrrole (ZnO-en-PPy) composite prepared by in-situ chemical polymerization technique using ferric chloride as a polymerizing agent. The observed analytical resul...
Ausführliche Beschreibung

Gespeichert in:

Autor*in:	Singh, Pratibha [verfasserIn] Kushwaha, Chandra Shekhar [verfasserIn] Singh, Vinay Kumar [verfasserIn] Dubey, G.C. [verfasserIn] Shukla, Saroj Kr. [verfasserIn]

Format:	E-Artikel
Sprache:	Englisch

Erschienen:	2021

Schlagwörter:	ZnO-en-PPy composite Ammonia sensor Sensing parameters Sensing mechanism

Übergeordnetes Werk:	Enthalten in: Sensors and actuators / B - Amsterdam [u.a.] : Elsevier Science, 1990, 342
Übergeordnetes Werk:	volume:342

DOI / URN:	10.1016/j.snb.2021.130042

Katalog-ID:	ELV006100104

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520			\|a The present research manuscript demonstrates the chemiresistive sensing of volatile ammonia from the soil over zinc oxide encapsulated polypyrrole (ZnO-en-PPy) composite prepared by in-situ chemical polymerization technique using ferric chloride as a polymerizing agent. The observed analytical result revealed the formation of nanocomposite with optimized crystallinity, improved thermal stability, and responsive electrical conductivity against ammonia concentration. Further, a thin film of the composite was casted on a glass rod to prepare a portable resistive type ammonia sensor for atmospheric and volatile ammonia from the soil with observed sensing parameters i.e. sensitivity range of 1 ppm–100 ppm, sensitivity 0.4947 kΩ-ppm−1, response time 45 s, recovery time 55 s, and stability for 90 days.
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650		4	\|a Ammonia sensor
650		4	\|a Sensing parameters
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700	1		\|a Singh, Vinay Kumar \|e verfasserin \|4 aut
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700	1		\|a Shukla, Saroj Kr. \|e verfasserin \|4 aut
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allfields	10.1016/j.snb.2021.130042 doi (DE-627)ELV006100104 (ELSEVIER)S0925-4005(21)00611-0 DE-627 ger DE-627 rda eng 530 620 DE-600 50.22 bkl 35.07 bkl Singh, Pratibha verfasserin aut Chemiresistive sensing of volatile ammonia over zinc oxide encapsulated polypyrrole based nanocomposite 2021 nicht spezifiziert zzz rdacontent Computermedien c rdamedia Online-Ressource cr rdacarrier The present research manuscript demonstrates the chemiresistive sensing of volatile ammonia from the soil over zinc oxide encapsulated polypyrrole (ZnO-en-PPy) composite prepared by in-situ chemical polymerization technique using ferric chloride as a polymerizing agent. The observed analytical result revealed the formation of nanocomposite with optimized crystallinity, improved thermal stability, and responsive electrical conductivity against ammonia concentration. Further, a thin film of the composite was casted on a glass rod to prepare a portable resistive type ammonia sensor for atmospheric and volatile ammonia from the soil with observed sensing parameters i.e. sensitivity range of 1 ppm–100 ppm, sensitivity 0.4947 kΩ-ppm−1, response time 45 s, recovery time 55 s, and stability for 90 days. ZnO-en-PPy composite Ammonia sensor Sensing parameters Sensing mechanism Kushwaha, Chandra Shekhar verfasserin aut Singh, Vinay Kumar verfasserin aut Dubey, G.C. verfasserin aut Shukla, Saroj Kr. verfasserin aut Enthalten in Sensors and actuators <Lausanne> / B Amsterdam [u.a.] : Elsevier Science, 1990 342 Online-Ressource (DE-627)306710358 (DE-600)1500731-5 (DE-576)082435855 0925-4005 nnns volume:342 GBV_USEFLAG_U SYSFLAG_U GBV_ELV SSG-OLC-PHA GBV_ILN_20 GBV_ILN_22 GBV_ILN_23 GBV_ILN_24 GBV_ILN_31 GBV_ILN_32 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_100 GBV_ILN_101 GBV_ILN_105 GBV_ILN_110 GBV_ILN_150 GBV_ILN_151 GBV_ILN_224 GBV_ILN_370 GBV_ILN_602 GBV_ILN_702 GBV_ILN_2003 GBV_ILN_2004 GBV_ILN_2005 GBV_ILN_2011 GBV_ILN_2014 GBV_ILN_2015 GBV_ILN_2020 GBV_ILN_2021 GBV_ILN_2025 GBV_ILN_2027 GBV_ILN_2034 GBV_ILN_2038 GBV_ILN_2044 GBV_ILN_2048 GBV_ILN_2049 GBV_ILN_2050 GBV_ILN_2056 GBV_ILN_2059 GBV_ILN_2061 GBV_ILN_2064 GBV_ILN_2065 GBV_ILN_2068 GBV_ILN_2111 GBV_ILN_2112 GBV_ILN_2113 GBV_ILN_2118 GBV_ILN_2122 GBV_ILN_2129 GBV_ILN_2143 GBV_ILN_2147 GBV_ILN_2148 GBV_ILN_2152 GBV_ILN_2153 GBV_ILN_2190 GBV_ILN_2336 GBV_ILN_2507 GBV_ILN_2522 GBV_ILN_4035 GBV_ILN_4037 GBV_ILN_4112 GBV_ILN_4125 GBV_ILN_4126 GBV_ILN_4242 GBV_ILN_4251 GBV_ILN_4305 GBV_ILN_4313 GBV_ILN_4323 GBV_ILN_4324 GBV_ILN_4326 GBV_ILN_4333 GBV_ILN_4334 GBV_ILN_4335 GBV_ILN_4338 GBV_ILN_4393 50.22 Sensorik 35.07 Chemisches Labor chemische Methoden AR 342
spelling	10.1016/j.snb.2021.130042 doi (DE-627)ELV006100104 (ELSEVIER)S0925-4005(21)00611-0 DE-627 ger DE-627 rda eng 530 620 DE-600 50.22 bkl 35.07 bkl Singh, Pratibha verfasserin aut Chemiresistive sensing of volatile ammonia over zinc oxide encapsulated polypyrrole based nanocomposite 2021 nicht spezifiziert zzz rdacontent Computermedien c rdamedia Online-Ressource cr rdacarrier The present research manuscript demonstrates the chemiresistive sensing of volatile ammonia from the soil over zinc oxide encapsulated polypyrrole (ZnO-en-PPy) composite prepared by in-situ chemical polymerization technique using ferric chloride as a polymerizing agent. The observed analytical result revealed the formation of nanocomposite with optimized crystallinity, improved thermal stability, and responsive electrical conductivity against ammonia concentration. Further, a thin film of the composite was casted on a glass rod to prepare a portable resistive type ammonia sensor for atmospheric and volatile ammonia from the soil with observed sensing parameters i.e. sensitivity range of 1 ppm–100 ppm, sensitivity 0.4947 kΩ-ppm−1, response time 45 s, recovery time 55 s, and stability for 90 days. ZnO-en-PPy composite Ammonia sensor Sensing parameters Sensing mechanism Kushwaha, Chandra Shekhar verfasserin aut Singh, Vinay Kumar verfasserin aut Dubey, G.C. verfasserin aut Shukla, Saroj Kr. verfasserin aut Enthalten in Sensors and actuators <Lausanne> / B Amsterdam [u.a.] : Elsevier Science, 1990 342 Online-Ressource (DE-627)306710358 (DE-600)1500731-5 (DE-576)082435855 0925-4005 nnns volume:342 GBV_USEFLAG_U SYSFLAG_U GBV_ELV SSG-OLC-PHA GBV_ILN_20 GBV_ILN_22 GBV_ILN_23 GBV_ILN_24 GBV_ILN_31 GBV_ILN_32 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_100 GBV_ILN_101 GBV_ILN_105 GBV_ILN_110 GBV_ILN_150 GBV_ILN_151 GBV_ILN_224 GBV_ILN_370 GBV_ILN_602 GBV_ILN_702 GBV_ILN_2003 GBV_ILN_2004 GBV_ILN_2005 GBV_ILN_2011 GBV_ILN_2014 GBV_ILN_2015 GBV_ILN_2020 GBV_ILN_2021 GBV_ILN_2025 GBV_ILN_2027 GBV_ILN_2034 GBV_ILN_2038 GBV_ILN_2044 GBV_ILN_2048 GBV_ILN_2049 GBV_ILN_2050 GBV_ILN_2056 GBV_ILN_2059 GBV_ILN_2061 GBV_ILN_2064 GBV_ILN_2065 GBV_ILN_2068 GBV_ILN_2111 GBV_ILN_2112 GBV_ILN_2113 GBV_ILN_2118 GBV_ILN_2122 GBV_ILN_2129 GBV_ILN_2143 GBV_ILN_2147 GBV_ILN_2148 GBV_ILN_2152 GBV_ILN_2153 GBV_ILN_2190 GBV_ILN_2336 GBV_ILN_2507 GBV_ILN_2522 GBV_ILN_4035 GBV_ILN_4037 GBV_ILN_4112 GBV_ILN_4125 GBV_ILN_4126 GBV_ILN_4242 GBV_ILN_4251 GBV_ILN_4305 GBV_ILN_4313 GBV_ILN_4323 GBV_ILN_4324 GBV_ILN_4326 GBV_ILN_4333 GBV_ILN_4334 GBV_ILN_4335 GBV_ILN_4338 GBV_ILN_4393 50.22 Sensorik 35.07 Chemisches Labor chemische Methoden AR 342
allfields_unstemmed	10.1016/j.snb.2021.130042 doi (DE-627)ELV006100104 (ELSEVIER)S0925-4005(21)00611-0 DE-627 ger DE-627 rda eng 530 620 DE-600 50.22 bkl 35.07 bkl Singh, Pratibha verfasserin aut Chemiresistive sensing of volatile ammonia over zinc oxide encapsulated polypyrrole based nanocomposite 2021 nicht spezifiziert zzz rdacontent Computermedien c rdamedia Online-Ressource cr rdacarrier The present research manuscript demonstrates the chemiresistive sensing of volatile ammonia from the soil over zinc oxide encapsulated polypyrrole (ZnO-en-PPy) composite prepared by in-situ chemical polymerization technique using ferric chloride as a polymerizing agent. The observed analytical result revealed the formation of nanocomposite with optimized crystallinity, improved thermal stability, and responsive electrical conductivity against ammonia concentration. Further, a thin film of the composite was casted on a glass rod to prepare a portable resistive type ammonia sensor for atmospheric and volatile ammonia from the soil with observed sensing parameters i.e. sensitivity range of 1 ppm–100 ppm, sensitivity 0.4947 kΩ-ppm−1, response time 45 s, recovery time 55 s, and stability for 90 days. ZnO-en-PPy composite Ammonia sensor Sensing parameters Sensing mechanism Kushwaha, Chandra Shekhar verfasserin aut Singh, Vinay Kumar verfasserin aut Dubey, G.C. verfasserin aut Shukla, Saroj Kr. verfasserin aut Enthalten in Sensors and actuators <Lausanne> / B Amsterdam [u.a.] : Elsevier Science, 1990 342 Online-Ressource (DE-627)306710358 (DE-600)1500731-5 (DE-576)082435855 0925-4005 nnns volume:342 GBV_USEFLAG_U SYSFLAG_U GBV_ELV SSG-OLC-PHA GBV_ILN_20 GBV_ILN_22 GBV_ILN_23 GBV_ILN_24 GBV_ILN_31 GBV_ILN_32 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_100 GBV_ILN_101 GBV_ILN_105 GBV_ILN_110 GBV_ILN_150 GBV_ILN_151 GBV_ILN_224 GBV_ILN_370 GBV_ILN_602 GBV_ILN_702 GBV_ILN_2003 GBV_ILN_2004 GBV_ILN_2005 GBV_ILN_2011 GBV_ILN_2014 GBV_ILN_2015 GBV_ILN_2020 GBV_ILN_2021 GBV_ILN_2025 GBV_ILN_2027 GBV_ILN_2034 GBV_ILN_2038 GBV_ILN_2044 GBV_ILN_2048 GBV_ILN_2049 GBV_ILN_2050 GBV_ILN_2056 GBV_ILN_2059 GBV_ILN_2061 GBV_ILN_2064 GBV_ILN_2065 GBV_ILN_2068 GBV_ILN_2111 GBV_ILN_2112 GBV_ILN_2113 GBV_ILN_2118 GBV_ILN_2122 GBV_ILN_2129 GBV_ILN_2143 GBV_ILN_2147 GBV_ILN_2148 GBV_ILN_2152 GBV_ILN_2153 GBV_ILN_2190 GBV_ILN_2336 GBV_ILN_2507 GBV_ILN_2522 GBV_ILN_4035 GBV_ILN_4037 GBV_ILN_4112 GBV_ILN_4125 GBV_ILN_4126 GBV_ILN_4242 GBV_ILN_4251 GBV_ILN_4305 GBV_ILN_4313 GBV_ILN_4323 GBV_ILN_4324 GBV_ILN_4326 GBV_ILN_4333 GBV_ILN_4334 GBV_ILN_4335 GBV_ILN_4338 GBV_ILN_4393 50.22 Sensorik 35.07 Chemisches Labor chemische Methoden AR 342
allfieldsGer	10.1016/j.snb.2021.130042 doi (DE-627)ELV006100104 (ELSEVIER)S0925-4005(21)00611-0 DE-627 ger DE-627 rda eng 530 620 DE-600 50.22 bkl 35.07 bkl Singh, Pratibha verfasserin aut Chemiresistive sensing of volatile ammonia over zinc oxide encapsulated polypyrrole based nanocomposite 2021 nicht spezifiziert zzz rdacontent Computermedien c rdamedia Online-Ressource cr rdacarrier The present research manuscript demonstrates the chemiresistive sensing of volatile ammonia from the soil over zinc oxide encapsulated polypyrrole (ZnO-en-PPy) composite prepared by in-situ chemical polymerization technique using ferric chloride as a polymerizing agent. The observed analytical result revealed the formation of nanocomposite with optimized crystallinity, improved thermal stability, and responsive electrical conductivity against ammonia concentration. Further, a thin film of the composite was casted on a glass rod to prepare a portable resistive type ammonia sensor for atmospheric and volatile ammonia from the soil with observed sensing parameters i.e. sensitivity range of 1 ppm–100 ppm, sensitivity 0.4947 kΩ-ppm−1, response time 45 s, recovery time 55 s, and stability for 90 days. ZnO-en-PPy composite Ammonia sensor Sensing parameters Sensing mechanism Kushwaha, Chandra Shekhar verfasserin aut Singh, Vinay Kumar verfasserin aut Dubey, G.C. verfasserin aut Shukla, Saroj Kr. verfasserin aut Enthalten in Sensors and actuators <Lausanne> / B Amsterdam [u.a.] : Elsevier Science, 1990 342 Online-Ressource (DE-627)306710358 (DE-600)1500731-5 (DE-576)082435855 0925-4005 nnns volume:342 GBV_USEFLAG_U SYSFLAG_U GBV_ELV SSG-OLC-PHA GBV_ILN_20 GBV_ILN_22 GBV_ILN_23 GBV_ILN_24 GBV_ILN_31 GBV_ILN_32 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_100 GBV_ILN_101 GBV_ILN_105 GBV_ILN_110 GBV_ILN_150 GBV_ILN_151 GBV_ILN_224 GBV_ILN_370 GBV_ILN_602 GBV_ILN_702 GBV_ILN_2003 GBV_ILN_2004 GBV_ILN_2005 GBV_ILN_2011 GBV_ILN_2014 GBV_ILN_2015 GBV_ILN_2020 GBV_ILN_2021 GBV_ILN_2025 GBV_ILN_2027 GBV_ILN_2034 GBV_ILN_2038 GBV_ILN_2044 GBV_ILN_2048 GBV_ILN_2049 GBV_ILN_2050 GBV_ILN_2056 GBV_ILN_2059 GBV_ILN_2061 GBV_ILN_2064 GBV_ILN_2065 GBV_ILN_2068 GBV_ILN_2111 GBV_ILN_2112 GBV_ILN_2113 GBV_ILN_2118 GBV_ILN_2122 GBV_ILN_2129 GBV_ILN_2143 GBV_ILN_2147 GBV_ILN_2148 GBV_ILN_2152 GBV_ILN_2153 GBV_ILN_2190 GBV_ILN_2336 GBV_ILN_2507 GBV_ILN_2522 GBV_ILN_4035 GBV_ILN_4037 GBV_ILN_4112 GBV_ILN_4125 GBV_ILN_4126 GBV_ILN_4242 GBV_ILN_4251 GBV_ILN_4305 GBV_ILN_4313 GBV_ILN_4323 GBV_ILN_4324 GBV_ILN_4326 GBV_ILN_4333 GBV_ILN_4334 GBV_ILN_4335 GBV_ILN_4338 GBV_ILN_4393 50.22 Sensorik 35.07 Chemisches Labor chemische Methoden AR 342
allfieldsSound	10.1016/j.snb.2021.130042 doi (DE-627)ELV006100104 (ELSEVIER)S0925-4005(21)00611-0 DE-627 ger DE-627 rda eng 530 620 DE-600 50.22 bkl 35.07 bkl Singh, Pratibha verfasserin aut Chemiresistive sensing of volatile ammonia over zinc oxide encapsulated polypyrrole based nanocomposite 2021 nicht spezifiziert zzz rdacontent Computermedien c rdamedia Online-Ressource cr rdacarrier The present research manuscript demonstrates the chemiresistive sensing of volatile ammonia from the soil over zinc oxide encapsulated polypyrrole (ZnO-en-PPy) composite prepared by in-situ chemical polymerization technique using ferric chloride as a polymerizing agent. The observed analytical result revealed the formation of nanocomposite with optimized crystallinity, improved thermal stability, and responsive electrical conductivity against ammonia concentration. Further, a thin film of the composite was casted on a glass rod to prepare a portable resistive type ammonia sensor for atmospheric and volatile ammonia from the soil with observed sensing parameters i.e. sensitivity range of 1 ppm–100 ppm, sensitivity 0.4947 kΩ-ppm−1, response time 45 s, recovery time 55 s, and stability for 90 days. ZnO-en-PPy composite Ammonia sensor Sensing parameters Sensing mechanism Kushwaha, Chandra Shekhar verfasserin aut Singh, Vinay Kumar verfasserin aut Dubey, G.C. verfasserin aut Shukla, Saroj Kr. verfasserin aut Enthalten in Sensors and actuators <Lausanne> / B Amsterdam [u.a.] : Elsevier Science, 1990 342 Online-Ressource (DE-627)306710358 (DE-600)1500731-5 (DE-576)082435855 0925-4005 nnns volume:342 GBV_USEFLAG_U SYSFLAG_U GBV_ELV SSG-OLC-PHA GBV_ILN_20 GBV_ILN_22 GBV_ILN_23 GBV_ILN_24 GBV_ILN_31 GBV_ILN_32 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_100 GBV_ILN_101 GBV_ILN_105 GBV_ILN_110 GBV_ILN_150 GBV_ILN_151 GBV_ILN_224 GBV_ILN_370 GBV_ILN_602 GBV_ILN_702 GBV_ILN_2003 GBV_ILN_2004 GBV_ILN_2005 GBV_ILN_2011 GBV_ILN_2014 GBV_ILN_2015 GBV_ILN_2020 GBV_ILN_2021 GBV_ILN_2025 GBV_ILN_2027 GBV_ILN_2034 GBV_ILN_2038 GBV_ILN_2044 GBV_ILN_2048 GBV_ILN_2049 GBV_ILN_2050 GBV_ILN_2056 GBV_ILN_2059 GBV_ILN_2061 GBV_ILN_2064 GBV_ILN_2065 GBV_ILN_2068 GBV_ILN_2111 GBV_ILN_2112 GBV_ILN_2113 GBV_ILN_2118 GBV_ILN_2122 GBV_ILN_2129 GBV_ILN_2143 GBV_ILN_2147 GBV_ILN_2148 GBV_ILN_2152 GBV_ILN_2153 GBV_ILN_2190 GBV_ILN_2336 GBV_ILN_2507 GBV_ILN_2522 GBV_ILN_4035 GBV_ILN_4037 GBV_ILN_4112 GBV_ILN_4125 GBV_ILN_4126 GBV_ILN_4242 GBV_ILN_4251 GBV_ILN_4305 GBV_ILN_4313 GBV_ILN_4323 GBV_ILN_4324 GBV_ILN_4326 GBV_ILN_4333 GBV_ILN_4334 GBV_ILN_4335 GBV_ILN_4338 GBV_ILN_4393 50.22 Sensorik 35.07 Chemisches Labor chemische Methoden AR 342
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authorswithroles_txt_mv	Singh, Pratibha @@aut@@ Kushwaha, Chandra Shekhar @@aut@@ Singh, Vinay Kumar @@aut@@ Dubey, G.C. @@aut@@ Shukla, Saroj Kr. @@aut@@
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author	Singh, Pratibha
spellingShingle	Singh, Pratibha ddc 530 bkl 50.22 bkl 35.07 misc ZnO-en-PPy composite misc Ammonia sensor misc Sensing parameters misc Sensing mechanism Chemiresistive sensing of volatile ammonia over zinc oxide encapsulated polypyrrole based nanocomposite
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topic_title	530 620 DE-600 50.22 bkl 35.07 bkl Chemiresistive sensing of volatile ammonia over zinc oxide encapsulated polypyrrole based nanocomposite ZnO-en-PPy composite Ammonia sensor Sensing parameters Sensing mechanism
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title	Chemiresistive sensing of volatile ammonia over zinc oxide encapsulated polypyrrole based nanocomposite
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title_full	Chemiresistive sensing of volatile ammonia over zinc oxide encapsulated polypyrrole based nanocomposite
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title_sort	chemiresistive sensing of volatile ammonia over zinc oxide encapsulated polypyrrole based nanocomposite
title_auth	Chemiresistive sensing of volatile ammonia over zinc oxide encapsulated polypyrrole based nanocomposite
abstract	The present research manuscript demonstrates the chemiresistive sensing of volatile ammonia from the soil over zinc oxide encapsulated polypyrrole (ZnO-en-PPy) composite prepared by in-situ chemical polymerization technique using ferric chloride as a polymerizing agent. The observed analytical result revealed the formation of nanocomposite with optimized crystallinity, improved thermal stability, and responsive electrical conductivity against ammonia concentration. Further, a thin film of the composite was casted on a glass rod to prepare a portable resistive type ammonia sensor for atmospheric and volatile ammonia from the soil with observed sensing parameters i.e. sensitivity range of 1 ppm–100 ppm, sensitivity 0.4947 kΩ-ppm−1, response time 45 s, recovery time 55 s, and stability for 90 days.
abstractGer	The present research manuscript demonstrates the chemiresistive sensing of volatile ammonia from the soil over zinc oxide encapsulated polypyrrole (ZnO-en-PPy) composite prepared by in-situ chemical polymerization technique using ferric chloride as a polymerizing agent. The observed analytical result revealed the formation of nanocomposite with optimized crystallinity, improved thermal stability, and responsive electrical conductivity against ammonia concentration. Further, a thin film of the composite was casted on a glass rod to prepare a portable resistive type ammonia sensor for atmospheric and volatile ammonia from the soil with observed sensing parameters i.e. sensitivity range of 1 ppm–100 ppm, sensitivity 0.4947 kΩ-ppm−1, response time 45 s, recovery time 55 s, and stability for 90 days.
abstract_unstemmed	The present research manuscript demonstrates the chemiresistive sensing of volatile ammonia from the soil over zinc oxide encapsulated polypyrrole (ZnO-en-PPy) composite prepared by in-situ chemical polymerization technique using ferric chloride as a polymerizing agent. The observed analytical result revealed the formation of nanocomposite with optimized crystallinity, improved thermal stability, and responsive electrical conductivity against ammonia concentration. Further, a thin film of the composite was casted on a glass rod to prepare a portable resistive type ammonia sensor for atmospheric and volatile ammonia from the soil with observed sensing parameters i.e. sensitivity range of 1 ppm–100 ppm, sensitivity 0.4947 kΩ-ppm−1, response time 45 s, recovery time 55 s, and stability for 90 days.
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title_short	Chemiresistive sensing of volatile ammonia over zinc oxide encapsulated polypyrrole based nanocomposite
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Chemiresistive sensing of volatile ammonia over zinc oxide encapsulated polypyrrole based nanocomposite

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