{"status":"ok","message-type":"work","message-version":"1.0.0","message":{"indexed":{"date-parts":[[2026,4,27]],"date-time":"2026-04-27T20:03:44Z","timestamp":1777320224848,"version":"3.51.4"},"reference-count":40,"publisher":"MDPI AG","issue":"19","license":[{"start":{"date-parts":[[2022,10,2]],"date-time":"2022-10-02T00:00:00Z","timestamp":1664668800000},"content-version":"vor","delay-in-days":0,"URL":"https:\/\/creativecommons.org\/licenses\/by\/4.0\/"}],"funder":[{"name":"\u201cState control technology and demonstration application of power grid equipment based on IoT\u201d of the Science and Technology Project of State Grid Hebei Electric Power Co., Ltd.","award":["kj2021-019"],"award-info":[{"award-number":["kj2021-019"]}]},{"name":"\u201cState control technology and demonstration application of power grid equipment based on IoT\u201d of the Science and Technology Project of State Grid Hebei Electric Power Co., Ltd.","award":["U21A20500"],"award-info":[{"award-number":["U21A20500"]}]},{"DOI":"10.13039\/501100001809","name":"National Natural Science Foundation of China","doi-asserted-by":"publisher","award":["kj2021-019"],"award-info":[{"award-number":["kj2021-019"]}],"id":[{"id":"10.13039\/501100001809","id-type":"DOI","asserted-by":"publisher"}]},{"DOI":"10.13039\/501100001809","name":"National Natural Science Foundation of China","doi-asserted-by":"publisher","award":["U21A20500"],"award-info":[{"award-number":["U21A20500"]}],"id":[{"id":"10.13039\/501100001809","id-type":"DOI","asserted-by":"publisher"}]}],"content-domain":{"domain":[],"crossmark-restriction":false},"short-container-title":["Sensors"],"abstract":"<jats:p>Acetylene detection plays an important role in fault diagnosis of power transformers. However, the available dissolved gas analysis (DGA) techniques have always relied on bulky instruments and are time-consuming. Herein, a high-performance acetylene sensor was fabricated on a microhotplate chip using In2O3 as the sensing material. To achieve high sensing response to acetylene, Pd\u2013Ag core-shell nanoparticles were synthesized and used as catalysts. The transmission electron microscopy (TEM) image clearly shows that the Ag shell is deposited on one face of the cubic Pd nanoseeds. By loading the Pd\u2013Ag bimetallic catalyst onto the surface of In2O3 sensing material, the acetylene sensor has been fabricated for acetylene detection. Due to the high catalytic performance of Pd\u2013Ag bimetallic nanoparticles, the microhotplate sensor has a high response to acetylene gas, with a limit of detection (LOD) of 10 ppb. In addition to high sensitivity, the fabricated microhotplate sensor exhibits satisfactory selectivity, good repeatability, and fast response to acetylene. The high performance of the microhotplate sensor for acetylene gas indicates the application potential of trace acetylene detection in power transformer fault diagnosis.<\/jats:p>","DOI":"10.3390\/s22197485","type":"journal-article","created":{"date-parts":[[2022,10,10]],"date-time":"2022-10-10T03:07:28Z","timestamp":1665371248000},"page":"7485","update-policy":"https:\/\/doi.org\/10.3390\/mdpi_crossmark_policy","source":"Crossref","is-referenced-by-count":5,"title":["Highly Sensitive MEMS Sensor Using Bimetallic Pd\u2013Ag Nanoparticles as Catalyst for Acetylene Detection"],"prefix":"10.3390","volume":"22","author":[{"ORCID":"https:\/\/orcid.org\/0000-0003-0435-7341","authenticated-orcid":false,"given":"Yuan","family":"Tian","sequence":"first","affiliation":[{"name":"State Grid Hebei Electric Power Co., Ltd., Electric Power Research Institute, Shijiazhuang 050021, China"}],"role":[{"role":"author","vocabulary":"crossref"}]},{"given":"Hui","family":"Qiao","sequence":"additional","affiliation":[{"name":"Equipment Department of State Grid Hebei Electric Power Co., Ltd., Shijiazhuang 050022, China"}],"role":[{"role":"author","vocabulary":"crossref"}]},{"given":"Tao","family":"Yao","sequence":"additional","affiliation":[{"name":"State Grid Hebei Information & Telecommunication Branch, Shijiazhuang 050013, China"}],"role":[{"role":"author","vocabulary":"crossref"}]},{"given":"Shuguo","family":"Gao","sequence":"additional","affiliation":[{"name":"State Grid Hebei Electric Power Co., Ltd., Electric Power Research Institute, Shijiazhuang 050021, China"}],"role":[{"role":"author","vocabulary":"crossref"}]},{"ORCID":"https:\/\/orcid.org\/0000-0003-1897-8659","authenticated-orcid":false,"given":"Lujian","family":"Dai","sequence":"additional","affiliation":[{"name":"State Grid Hebei Electric Power Co., Ltd., Electric Power Research Institute, Shijiazhuang 050021, China"}],"role":[{"role":"author","vocabulary":"crossref"}]},{"given":"Jun","family":"Zhao","sequence":"additional","affiliation":[{"name":"State Grid Hebei Electric Power Co., Ltd., Electric Power Research Institute, Shijiazhuang 050021, China"}],"role":[{"role":"author","vocabulary":"crossref"}]},{"ORCID":"https:\/\/orcid.org\/0000-0003-2124-4066","authenticated-orcid":false,"given":"Ying","family":"Chen","sequence":"additional","affiliation":[{"name":"State Key Lab of Transducer Technology, Shanghai Institute of Microsystem and Information Technology, Chinese Academy of Sciences, Shanghai 200050, China"}],"role":[{"role":"author","vocabulary":"crossref"}]},{"ORCID":"https:\/\/orcid.org\/0000-0001-8651-208X","authenticated-orcid":false,"given":"Pengcheng","family":"Xu","sequence":"additional","affiliation":[{"name":"State Key Lab of Transducer Technology, Shanghai Institute of Microsystem and Information Technology, Chinese Academy of Sciences, Shanghai 200050, China"}],"role":[{"role":"author","vocabulary":"crossref"}]}],"member":"1968","published-online":{"date-parts":[[2022,10,2]]},"reference":[{"key":"ref_1","doi-asserted-by":"crossref","unstructured":"Winders, J. 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