{"doi":"10.1016/j.jhazmat.2015.04.044","title":"Room-temperature NH3 gas sensors based on Ag-doped γ-Fe2O3/SiO2 composite films with sub-ppm detection ability","abstract":null,"journal":"Journal of Hazardous Materials","year":2015,"id":664732,"datarank":0.5775221402565088,"base_score":3.8501476017100584,"endowment":3.8501476017100584,"self_citation_contribution":0.5775221402565088,"citation_network_contribution":0.0,"self_endowment_contribution":0.5775221402565088,"citer_contribution":0.0,"corpus_percentile":null,"corpus_rank":null,"citation_count":46,"citer_count":0,"citers_with_citation_signal":0,"citers_with_endowment":0,"datacite_reuse_total":0,"is_dataset":false,"is_dataset_confidence":null,"is_data_producer":false,"deposit_databanks":null,"is_oa":false,"file_count":0,"downloads":0,"has_version_chain":false,"published_date":null,"fair_score":null,"fair_percentile":null,"algorithm_id":"datarank_citation_only_1hop_v6","ranking_scope":"data_only","authors":[{"id":794976,"name":"Zhijie Li","orcid":"0000-0003-2821-0846","position":1,"is_corresponding":false},{"id":1735702,"name":"Xiaotao Zu","orcid":null,"position":2,"is_corresponding":false},{"id":1735703,"name":"Jinyi Ma","orcid":null,"position":3,"is_corresponding":false},{"id":476634,"name":"Lu Wang","orcid":"0000-0001-8412-2985","position":4,"is_corresponding":false},{"id":105564,"name":"Jing Yang","orcid":"0009-0004-6493-5638","position":5,"is_corresponding":false},{"id":42741,"name":"Bo Du","orcid":"0000-0001-9306-6962","position":6,"is_corresponding":false},{"id":1735704,"name":"Qingkai Yu","orcid":null,"position":7,"is_corresponding":false},{"id":1735701,"name":"Yongliang Tang","orcid":null,"position":0,"is_corresponding":false}],"reference_count":0,"raw_metadata":{"has_enrichment":true,"resolved":true,"title":"Room-temperature NH3 gas sensors based on Ag-doped γ-Fe2O3/SiO2 composite films with sub-ppm detection ability","abstract":"In this report, NH3 gas sensors based on Ag-doped γ-Fe2O3/SiO2 composite films are investigated. The composite films were prepared with a sol-gel process, and the films' electrical resistance responded to the change of NH3 concentration in the environment. The SEM and AFM investigations showed that the films had a porous structure, and the XRD investigation indicated that the size of Ag particles changed with the modification of Ag loading content. Through a comparative gas sensing study among the Ag-doped composite films, undoped composite film, γ-Fe2O3 film, and SiO2 film, the Ag-doped composite films were found to be much more sensitive than the sensors based on the undoped composite film and γ-Fe2O3 film at room temperature, indicating the significant influences of the SiO2 and Ag on the sensing property. Moreover, the sensor based on Ag-doped (4%) γ-Fe2O3/SiO2 composite film was able to detect the NH3 gas at ppb level. Conversely, the responses of the sensor to other test gases (C2H5OH, CO, H2, CH4 and H2S) were all markedly low, suggesting excellent selectivity.","is_dataset_classified":null,"base_score":3.8501476017100584,"endowment":3.8501476017100584,"datacite_reuse_total":0,"file_count":0,"downloads":0,"views":0,"has_version_chain":false,"is_dataset":false,"is_oa":false,"pmid":"26057440","pmcid":null,"openalex_id":"https://openalex.org/W2073106904","authors":[],"funders":[{"funder_name":"Fundamental Research Funds for the Central Universities","grant_id":"ZYGX2012J047","title":null},{"funder_name":"Joint Fund of the National Natural Science Foundation of China and the China Academy of Engineering Physics","grant_id":"U1330108","title":null},{"funder_name":"National Natural Science Foundation of China","grant_id":"No. 11304032","title":null}],"total_grants":3,"fwci":2.4076,"citation_percentile":0.89150267,"influential_citations":0,"citation_trend":[{"year":2015,"count":2},{"year":2016,"count":3},{"year":2017,"count":7},{"year":2018,"count":3},{"year":2019,"count":6},{"year":2020,"count":4},{"year":2021,"count":2},{"year":2022,"count":1},{"year":2023,"count":4},{"year":2024,"count":7},{"year":2025,"count":5},{"year":2026,"count":2}],"oa_status":"closed","license":"https://www.elsevier.com/tdm/userlicense/1.0/","oa_locations":[{"url":"https://api.elsevier.com/content/article/PII:S0304389415003428?httpAccept=text/xml","host_type":"publisher"},{"url":"https://api.elsevier.com/content/article/PII:S0304389415003428?httpAccept=text/plain","host_type":"publisher"},{"url":"https://doi.org/10.1016/j.jhazmat.2015.04.044","host_type":"journal"},{"url":"https://pubmed.ncbi.nlm.nih.gov/26057440","host_type":"repository"}],"fields_of_study":["Gas Sensing Nanomaterials and Sensors","Advanced Chemical Sensor Technologies","Analytical Chemistry and Sensors","Ammonia","Ferrous Compounds","Gases","Microscopy, Electron, Scanning","Nanoparticles","Silicon Dioxide","Silver","Surface Properties","Temperature","X-Ray Diffraction"],"mesh_terms":["Ammonia","Ferrous Compounds","Gases","Microscopy, Electron, Scanning","Silicon Dioxide","Silver","Surface Properties","Temperature","X-Ray Diffraction","Nanoparticles"],"keywords":["Composite number","Materials science","Doping","Composite film","Sol-gel","Porosity","Thin film","Selectivity","Chemical engineering","Composite material","Nanotechnology","Optoelectronics","Chemistry","Organic chemistry","Sensor","Ag","Nh(3)","Γ-fe(2)o(3)","Sio"],"sdg_mappings":[],"linked_datasets":[],"clinical_trials":[],"software_tools":[],"database_accessions":[],"source":"live","citation_network_status":"fetched"},"created_at":"2026-08-13T03:54:29.549315Z","pmid":null,"pmcid":null,"fwci":null,"citation_percentile":null,"influential_citations":0,"oa_status":null,"license":null,"views":0,"total_file_size_bytes":0,"version_count":0,"fair_f":null,"fair_a":null,"fair_i":null,"fair_r":null,"fair_zscore":null,"fair_rationale":null,"fair_model":null,"fair_agent_version":null,"fair_fulltext_source":null,"fair_has_llm":null,"fair_computed_at":null,"clinical_trials":[],"software_tools":[],"db_accessions":[],"linked_datasets":[],"topics":[]}