Pt/WN based fuel cell type methanol sensor
文献类型：期刊论文
| 作者 | Meng, Da; Zhang, Shendan; Thomas, Tiju; Huang, Chaozhu; Zhao, Jingwei; Zhao, Ruiyang; Shi, Ying; Qu, Fengdong; Yang, Minghui |
| 刊名 | SENSORS AND ACTUATORS B-CHEMICAL
 |
| 出版日期 | 2020 |
| 卷号 | 307 |
| 关键词 | HIGH-PERFORMANCE CATALYST TUNGSTEN CARBIDE NANOPARTICLES MESOPOROUS CHROMIUM NITRIDE NONCARBON SUPPORT TITANIUM NITRIDE CARBON NANOTUBES FORMIC-ACID GAS ELECTROOXIDATION OXIDATION |
| DOI | 10.1016/j.snb.2020.127686 |
| 英文摘要 | Methanol detection is known to be a challenge using the normal Pt/C based gas sensor. This is primarily due to CO poisoning of the Pt active sites, resulting in an irreversible loss of sensor performance. In this paper, a novel fuel cell type gas sensor based on platinized mesoporous tungsten nitride (Pt/WN) is fabricated by employing a hot-press method. The device shows considerable performance for methanol detection at room temperature without external potential applied. The mesoporous WN is prepared through a simple solid-state method with subsequent ammonolysis. An ethylene glycol reduction method is applied to load Pt nanoparticles on WN or on carbon blacks. Results show that Pt/WN gas sensor has the sensitivity of 0.037 mu A/ppm, which is four times higher than that of the Pt/C counterpart. In addition, replacing carbon with WN will increase the response to to methanol with excellent selectivity and stability. The synergistic effect between WN and Pt may play an important role. This investigation shows the potential of tungsten metal nitride in the gas sensor device reported; this offers a new way to change the selectivity of gas sensors using suitably chosen support materials. |
| 学科主题 | Chemistry ; Electrochemistry ; Instruments & Instrumentation |
| 源URL | [http://ir.nimte.ac.cn/handle/174433/19874]  |
| 专题 | 2020专题 2020专题_期刊论文 |
| 作者单位 | 1.Qu, FD 2.Yang, MH (corresponding author), Chinese Acad Sci, Ningbo Inst Mat Technol & Engn, Ningbo 315201, Peoples R China. |
| 推荐引用方式 GB/T 7714 | Meng, Da,Zhang, Shendan,Thomas, Tiju,et al. Pt/WN based fuel cell type methanol sensor[J]. SENSORS AND ACTUATORS B-CHEMICAL,2020,307. |
| APA | Meng, Da.,Zhang, Shendan.,Thomas, Tiju.,Huang, Chaozhu.,Zhao, Jingwei.,...&Yang, Minghui.(2020).Pt/WN based fuel cell type methanol sensor.SENSORS AND ACTUATORS B-CHEMICAL,307. |
| MLA | Meng, Da,et al."Pt/WN based fuel cell type methanol sensor".SENSORS AND ACTUATORS B-CHEMICAL 307(2020). |
入库方式： OAI收割
来源：宁波材料技术与工程研究所
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