TY - JOUR
T1 - Chemiresistive La-doped BaTiO3 microspheres for ambient-temperature formaldehyde gas sensing
AU - Ranjitha Mathiarasu, Roselin
AU - Panneerselvam, Kurinjinathan
AU - Selvaraj, Bhuvaneswari
AU - Dharmaraj, Selvakumar
AU - Ashokkumar, Veeramuthu
AU - Show, Pau Loke
AU - George, Mary
N1 - Funding Information:
The authors are obliged for the help rendered by SASTRA Deemed University, Thanjavur in conducting the gas sensing studies and the DST facility (CRIST lab), Stella Maris College, Chennai. Especially, the guidance offered by the faculty and research scholars of Center for Nanotechnology & Advanced Biomaterials (CeNTAB), School of Electrical & Electronics Engineering, SASTRA, is acknowledged with great gratitude.
Publisher Copyright:
© 2022 Elsevier Ltd
PY - 2022/10
Y1 - 2022/10
N2 - Volatile organic compounds pose an acute threat to the environment and human life. Formaldehyde, a well-known volatile organic compound known for its numerous commercial applications, has put forth the requirement for tracking down trace amounts of its presence in order to ensure healthier living. This work emphasizes the novel use of a non-toxic deep eutectic solvent medium (choline chloride and urea) for aiding the solid-state synthesis of pure and La-doped barium titanate. The prepared chemiresistive ceramics were verified for their gas sensing abilities towards a number of volatile organics, among which formaldehyde (100 ppm) showed amplified response of 118 in La-doped BTO modified gold interdigitated electrode. It also produced a rapid response-recovery rate of 12 sec/18 sec witnessing the extreme performance of La-doped BTO ceramic material. Additionally, the chemiresistive sensor was stable to humidity and had extended-shelf life.
AB - Volatile organic compounds pose an acute threat to the environment and human life. Formaldehyde, a well-known volatile organic compound known for its numerous commercial applications, has put forth the requirement for tracking down trace amounts of its presence in order to ensure healthier living. This work emphasizes the novel use of a non-toxic deep eutectic solvent medium (choline chloride and urea) for aiding the solid-state synthesis of pure and La-doped barium titanate. The prepared chemiresistive ceramics were verified for their gas sensing abilities towards a number of volatile organics, among which formaldehyde (100 ppm) showed amplified response of 118 in La-doped BTO modified gold interdigitated electrode. It also produced a rapid response-recovery rate of 12 sec/18 sec witnessing the extreme performance of La-doped BTO ceramic material. Additionally, the chemiresistive sensor was stable to humidity and had extended-shelf life.
KW - Barium titanate
KW - Formaldehyde
KW - Gold interdigitated electrode
KW - Microspheres
KW - Volatile organic compound
UR - http://www.scopus.com/inward/record.url?scp=85137077851&partnerID=8YFLogxK
U2 - 10.1016/j.seta.2022.102604
DO - 10.1016/j.seta.2022.102604
M3 - Article
AN - SCOPUS:85137077851
SN - 2213-1388
VL - 53
JO - Sustainable Energy Technologies and Assessments
JF - Sustainable Energy Technologies and Assessments
M1 - 102604
ER -