Peer-Reviewed Journal Details
Mandatory Fields
Ghule, Balaji; Shaikh, Shoyebmohamad F.; Ekar, Satish; Nakate, Umesh Tukaram; Gunturu, Krishna Chaitanya; Shinde, Nanasaheb; Naushad, Mu; Kim, Kwang Ho; O'Dwyer, Colm; Mane, Rajaram
Acs Applied Materials & Interfaces
Natural Carbonized Sugar as a Low-temperature Ammonia Sensor Material: Experimental, Theoretical and Computational Studies
WOS: 25 ()
Optional Fields
Carbonized sugar Structural analysis Surface morphology Ammonia sensor Density Function Theory
Bearing in mind the advantages of useful, cost-effective and eco-friendly synthesis, carbonized sugar (CS) has been synthesized via microwave-assisted carbonization of market quality table-top sugar. The as-prepared CS has been characterized for its morphology, phase purity, type of porosity and pore-size distribution. The gas sensing properties of CS for various oxidizing and reducing gases are demonstrated at ambient temperature where we observe good selectivity towards liquid ammonia amongst other gases. The highest ammonia response (50%) of a CS-based sensor was noted at 80C for 100 ppm concentration. The response and recovery times of CS sensor are 180 s and 216 s, respectively. The effect of relative humidity on CS sensor, at ambient temperature, has also been studied and reported where 16 % and 62 % minimum and maximum humidity response values are respectively obtained. The unveiling ammonia sensing study is explored through plausible theoretical mechanism which further is well-supported by computational modelling performed using density function theory.
Grant Details