Enhanced ammonia sensing using Pt-decorated single-crystalline SnO2 nanowires prepared by sputtering.
| Title: | Enhanced ammonia sensing using Pt-decorated single-crystalline SnO2 nanowires prepared by sputtering. |
|---|---|
| Authors: | Hung NP; School of Materials Science and Engineering, Hanoi University of Science and Technology No 1 Dai Co Viet Hanoi Vietnam duy.nguyenvan@hust.edu.vn ndhoa@itims.edu.vn.; Nguyen Anh Quan T; School of Materials Science and Engineering, Hanoi University of Science and Technology No 1 Dai Co Viet Hanoi Vietnam duy.nguyenvan@hust.edu.vn ndhoa@itims.edu.vn.; Tien LT; School of Materials Science and Engineering, Hanoi University of Science and Technology No 1 Dai Co Viet Hanoi Vietnam duy.nguyenvan@hust.edu.vn ndhoa@itims.edu.vn.; Van Duy N; School of Materials Science and Engineering, Hanoi University of Science and Technology No 1 Dai Co Viet Hanoi Vietnam duy.nguyenvan@hust.edu.vn ndhoa@itims.edu.vn.; Xuan CT; School of Materials Science and Engineering, Hanoi University of Science and Technology No 1 Dai Co Viet Hanoi Vietnam duy.nguyenvan@hust.edu.vn ndhoa@itims.edu.vn.; Viet Nga TT; School of Materials Science and Engineering, Hanoi University of Science and Technology No 1 Dai Co Viet Hanoi Vietnam duy.nguyenvan@hust.edu.vn ndhoa@itims.edu.vn.; Thanh Le DT; School of Materials Science and Engineering, Hanoi University of Science and Technology No 1 Dai Co Viet Hanoi Vietnam duy.nguyenvan@hust.edu.vn ndhoa@itims.edu.vn.; Hung CM; School of Materials Science and Engineering, Hanoi University of Science and Technology No 1 Dai Co Viet Hanoi Vietnam duy.nguyenvan@hust.edu.vn ndhoa@itims.edu.vn.; Hoa ND; School of Materials Science and Engineering, Hanoi University of Science and Technology No 1 Dai Co Viet Hanoi Vietnam duy.nguyenvan@hust.edu.vn ndhoa@itims.edu.vn. |
| Source: | RSC advances [RSC Adv] 2026 Mar 26; Vol. 16 (18), pp. 16694-16702. Date of Electronic Publication: 2026 Mar 26 (Print Publication: 2026). |
| Publication Type: | Journal Article |
| Language: | English |
| Journal Info: | Publisher: Royal Society of Chemistry Country of Publication: England NLM ID: 101581657 Publication Model: eCollection Cited Medium: Internet ISSN: 2046-2069 (Electronic) Linking ISSN: 20462069 NLM ISO Abbreviation: RSC Adv Subsets: PubMed not MEDLINE |
| Imprint Name(s): | Original Publication: Cambridge [England] : Royal Society of Chemistry, [2011]- |
| Abstract: | Ammonia is a well-known toxic and colorless gas that is widely produced in various chemical and biological industries; thus, developing high-performance gas sensors for the detection of NH3 is essential. Herein, we prepared a high-performance NH3 gas sensor based on SnO2 nanowires coated with Pt by the sputtering method and studied the effect of Pt coating on the gas-sensing performance. Single-crystal SnO2 nanowires were grown by the CVD method, and sputtering was used to control the thickness of the Pt coating layer. We demonstrated that the NH3 gas-sensing performance of Pt-SnO2 nanowires was significantly enhanced compared to that of pristine SnO2 nanowires. The 5 nm Pt-SnO2 nanowire sensor exhibits a high response (R a/R g) of 19.98 toward 500 ppm NH3 gas, which is a 19-fold enhancement compared with that of the bare SnO2 nanowires. The sensor exhibited a fast response and recovery with excellent selectivity over the interfering species C2H4, H2, and acetone. We also proposed a mechanism for the enhanced sensitivity of Pt-SnO2 nanowires toward NH3.; (This journal is © The Royal Society of Chemistry.) |
| Competing Interests: | The authors declare that they have no known competing financial interests or personal relationships that could have appeared to influence the work reported in this paper. |
| Entry Date(s): | Date Created: 20260330 Date Completed: 20260330 Latest Revision: 20260330 |
| Update Code: | 20260427 |
| PubMed Central ID: | PMC13019316 |
| DOI: | 10.1039/d6ra00229c |
| PMID: | 41909185 |
| Database: | MEDLINE |
Journal Article