超极化NMR技术与应用
针对NMR本征灵敏度低的问题,开发仲氢诱导超极化技术(PHIP)以及动态核极化技术(DNP),打破热平衡下自旋核的波尔兹曼分布,获得NMR信号强度数个量级的提升,实现对催化材料结构的高灵敏表征;结合原位NMR技术,增强低含量反应物种(中间体、产物等)信号,实现对工况条件下催化反应的极化观测。
1. W. Wang; R. J. Lewis; B. Lu; Q. Wang; G. J. Hutchings; J. Xu; F. Deng, The Role of Adsorbed Species in 1-Butene Isomerization: Parahydrogen-Induced Polarization NMR of Pd–Au Catalyzed Butadiene Hydrogenation. ACS Catal. 2024, 14, 2522-2531.
2. W. Wang; Q. Wang; J. Xu; F. Deng, Understanding Heterogeneous Catalytic Hydrogenation by Parahydrogen-Induced Polarization NMR Spectroscopy. ACS Catal. 2023, 13, 3501-3519.
3. W. Y. Wang; Q. M. Sun; Q. Wang; S. H. Li; J. Xu; F. Deng, Heterogeneous parahydrogen induced polarization on Rh-containing silicalite-1 zeolites: effect of the catalyst structure on signal enhancement. Catal. Sci. Technol. 2022, 12, 4442-4449.