Frontiers Science Center for High Energy Material, Beijing Key Laboratory of Photoelectronic/Electrophotonic Conversion Materials Key Laboratory of Cluster Science, Ministry of Education Advanced Research Institute of Multidisciplinary Science School of Medical Technology, School of Chemistry and Chemical Engineering Beijing Institute of Technology, Beijing, 100081, P. R. China.
Advanced Technology Research Institute (Jinan), Beijing Institute of Technology, Jinan, 250000, P. R. China.
ChemSusChem. 2022 Dec 20;15(24):e202201324. doi: 10.1002/cssc.202201324. Epub 2022 Sep 26.
A distinct platinum oxide nanocluster (PtO ) was developed, consisting of only Pt-O bond by a defect-engineered Al metal-organic framework (MOF) (BIT-72) with superior formaldehyde (HCHO) degradation activity and stability. With only 0.015 wt % Pt loading, PtO @BIT-72-DE could degrade HCHO with 100 % conversion continuously for at least 200 h under HCHO concentration of 25 ppm and gas hourly space velocity of 60000 mL g h at room temperature. Furthermore, its specific rate (446 mmol g h ) was higher than for traditional Pt-based catalysts and single-atom Pt catalysts. Moreover, the cost of PtO @BIT-72-DE was lowered to 0.0769 $ g , which could significantly facilitate its commercial application. This study demonstrates the promising potential of MOFs in the design of HCHO degradation catalysts.
开发了一种独特的铂氧化物纳米团簇（PtO），它由经过缺陷工程设计的 Al 金属有机骨架（MOF）（BIT-72）组成，仅由 Pt-O 键组成，具有优异的甲醛（HCHO）降解活性和稳定性。在 25 ppm 的 HCHO 浓度和室温下 60000 mL/g/h 的气体时空速度下，PtO@BIT-72-DE 仅需 0.015wt%Pt 负载量，即可连续 200 小时将 HCHO 完全转化。此外，其比速率（446mmol/g/h）高于传统的 Pt 基催化剂和单原子 Pt 催化剂。此外，PtO@BIT-72-DE 的成本降低至 0.0769 美元/g，这将极大地促进其商业应用。本研究证明了 MOFs 在设计 HCHO 降解催化剂方面具有广阔的应用前景。
