Evidence map›Paper›PMID 42047796›Full record

ArticleMikrochimica acta2026

Synthesis and characterization of Mn

Kuwar Ankur Singh, Bala Bhardwaj, Keval Bharati, Rahul Pratap Singh, Prabhat Ranjan Tiwari, Monu Gupta, Bal Chandra Yadav, Santosh Kumar

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Article in Mikrochimica acta, 2026. The graph could read no effect estimate from its abstract, so it casts no vote on the map. Not yet cited in PubMed.

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5 · Who and what money

Authors and funding

8 authors.

Kuwar Ankur SinghNano Materials Laboratory, Department of Physics, Faculty of Engineering and Technology, Veer Bahadur Singh, Purvanchal University, Jaunpur, 222003, U.P, India.
Bala BhardwajNano Materials Laboratory, Department of Physics, Faculty of Engineering and Technology, Veer Bahadur Singh, Purvanchal University, Jaunpur, 222003, U.P, India.
Keval BharatiNano Materials Laboratory, Department of Physics, Faculty of Engineering and Technology, Veer Bahadur Singh, Purvanchal University, Jaunpur, 222003, U.P, India. kevalbharati1995@gmail.com.
Rahul Pratap SinghNano Materials Laboratory, Department of Physics, Faculty of Engineering and Technology, Veer Bahadur Singh, Purvanchal University, Jaunpur, 222003, U.P, India. ect.rahul@gmail.com.
Prabhat Ranjan TiwariNano Materials Laboratory, Department of Physics, Faculty of Engineering and Technology, Veer Bahadur Singh, Purvanchal University, Jaunpur, 222003, U.P, India.
Monu GuptaNanomaterials and Sensors Research Laboratory, Department of Physics, Babasaheb Bhimrao Ambedkar University, Lucknow, 226025, U.P, India.
Bal Chandra YadavNanomaterials and Sensors Research Laboratory, Department of Physics, Babasaheb Bhimrao Ambedkar University, Lucknow, 226025, U.P, India.
Santosh KumarNano Materials Laboratory, Department of Physics, Faculty of Engineering and Technology, Veer Bahadur Singh, Purvanchal University, Jaunpur, 222003, U.P, India. skumarpu@rediffmail.com.

Funding

No grant is acknowledged in the PubMed record.

6 · The paper itself

Abstract

Liquefied petroleum gas (LPG) is a versatile fuel but is incredibly combustible. Thus, its leakage detection/sensing is of prime importance for the safety of living beings and the environment. This paper reports the synthesis of manganese (III) oxide (Mn2O3)/ cadmium sulphide (CdS) composite nanomaterial using p-type Mn2O3 and n-type CdS nanomaterials via the hydrothermal method. Characterization of prepared materials was done by powder X-ray diffraction (PXRD), field emission scanning electron microscopy (FESEM), energy-dispersive X-ray (EDX) spectroscopy, high resolution-transmission electron microscopy (HR-TEM), X-ray photoelectron spectroscopy (XPS), ultraviolet-visible (UV-Vis) spectroscopy, Mott-Schottky (M-S), and Fourier-transform infrared (FTIR) spectroscopy. PXRD analysis confirmed a cubic crystal structure with a crystallite size of 24.18 nm. The surface morphology and elemental composition were revealed by FESEM and EDX, respectively. HR-TEM and M-S analysis confirm the formation of a heterojunction in the nanocomposite phase. XPS spectroscopy revealed the chemical composition of the surface element of Mn2O3/CdS nanomaterial. UV-Vis spectroscopy determined that the nanocomposite’s optical band gap is 2.02 eV, which lies between 1.9 eV (Mn2O3) and 2.25 eV (CdS). FTIR analysis confirmed that the constituents Mn2O3 and CdS are successfully integrated in the composite Mn2O3/CdS nanomaterial, which has a hygroscopic character. The optimized Mn2O3/CdS was explored for the first time in the designing of a thin-film LPG sensor. The evaluated sensing parameters revealed that the designed sensor using Mn2O3/CdS exhibited the highest sensor response (1.6) and the lowest response time (7.79 s) and recovery time (10.84 s) as compared to constituent nanomaterials (Mn2O3 and CdS) at 5000 ppm. The developed sensor exhibits strong selectivity toward LPG, promising repeatability, and long-term stability. The effect of humidity on the designed sensor was also studied. The designed sensor outperforms in terms of material, recovery, and response times.

Indexed as

Chemiresistive sensorHeterojunctionLPG sensorsNanocompositeNanomaterials

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Read under generation 80e0d062 · epoch 390. Bibliography from PubMed, PubMed Central and OpenAlex; grants from NIH RePORTER; trial links from ClinicalTrials.gov; estimates, votes and beliefs from the OpenQuestion graph.