Mesoporous titanium niobium nitrides supported Pt nanoparticles for highly selective and sensitive formaldehyde sensing
文献类型：期刊论文
| 作者 | Huang, Chaozhu; Adimi, Samira; Liu, Dongliang; Guo, Haichuan; Thomas, Tiju; Attfield, J. Paul; Ruan, Shengping; Qu, Fengdong; Yang, Minghui |
| 刊名 | JOURNAL OF MATERIALS CHEMISTRY A
 |
| 出版日期 | 2021 |
| 卷号 | 9期号:35页码:19840-19846 |
| 关键词 | HIGH-PERFORMANCE METHANOL OXIDATION GAS SENSOR CATALYST LAYER CO NANOCOMPOSITE DURABILITY BEHAVIOR |
| 英文摘要 | A proton exchange membrane fuel cell (PEMFC) gas sensor is a promising and novel gas sensing device. However, the poor sensitivity and strong cross sensitivity of commercial carbon-supported-platinum (Pt/C) remain obstacles to its utilization. Here, we demonstrate that the issue can be addressed using mesoporous titanium niobium nitrides (Ti0.75Nb0.25N) synthesized using a solid-solid phase separation process. Pt nanoparticles supported on ternary transition metal nitrides enable the strong metal support interaction (SMSI), which changes the surface electronic structure and catalytic activity of the electrode material. Compared with the Pt/C-sensor, the selectivity of the Pt/Ti0.75Nb0.25N-based sensor to formaldehyde (HCHO) is significantly higher, while the response to other gases is effectively inhibited. In mixed gas tests, HCHO sensing of the Pt/Ti0.75Nb0.25N-sensor is still not affected (within 3.5% of the standard deviation limit). Furthermore, the Pt/Ti0.75Nb0.25N-sensor exhibits a much higher sensitivity (0.208 mu A per ppm) toward HCHO when compared to the Pt/C-sensor (0.058 mu A per ppm). The Pt/Ti0.75Nb0.25N-sensor also exhibits extraordinary long-term stability due to its electrochemical stability and SMSI of the electrode material. This work hence points to the design and development of a new sensing electrode system, which offers a combination of high selectivity and sensitivity when used in fuel-cell gas sensors. |
| 源URL | [http://ir.nimte.ac.cn/handle/174433/21960]  |
| 专题 | 中国科学院宁波材料技术与工程研究所 2021专题_期刊论文 |
| 作者单位 | 1.Qu, FD (corresponding author), Jilin Univ, Coll Elect Sci & Engn, State Key Lab Integrated Optoelect, Changchun 130012, Peoples R China. 2.Qu, FD 3.Yang, MH (corresponding author), Chinese Acad Sci, Ningbo Inst Mat Technol Engn, Ningbo 315201, Peoples R China. 4.Yang, MH (corresponding author), Univ Chinese Acad Sci, Ctr Mat Sci & Optoelect Engn, Beijing 100049, Peoples R China. 5.Ruan, SP |
| 推荐引用方式 GB/T 7714 | Huang, Chaozhu,Adimi, Samira,Liu, Dongliang,et al. Mesoporous titanium niobium nitrides supported Pt nanoparticles for highly selective and sensitive formaldehyde sensing[J]. JOURNAL OF MATERIALS CHEMISTRY A,2021,9(35):19840-19846. |
| APA | Huang, Chaozhu.,Adimi, Samira.,Liu, Dongliang.,Guo, Haichuan.,Thomas, Tiju.,...&Yang, Minghui.(2021).Mesoporous titanium niobium nitrides supported Pt nanoparticles for highly selective and sensitive formaldehyde sensing.JOURNAL OF MATERIALS CHEMISTRY A,9(35),19840-19846. |
| MLA | Huang, Chaozhu,et al."Mesoporous titanium niobium nitrides supported Pt nanoparticles for highly selective and sensitive formaldehyde sensing".JOURNAL OF MATERIALS CHEMISTRY A 9.35(2021):19840-19846. |
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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