Hydrothermal reaction of tryptophan over Ni-based bimetallic catalysts
发布时间：2025-04-30
点击次数：
- 发布时间：
- 2025-04-30
- 论文名称：
- Hydrothermal reaction of tryptophan over Ni-based bimetallic catalysts
- 发表刊物：
- The Journal of Supercritical Fluids
- 摘要：
- The major products from hydrothermal reactions of tryptophan at 350 and 400 °C in the absence of catalyst were indole and methyl indoles, indicating simultaneous deoxygenation and deamination. In the presence of carbonsupported Ni and NiM catalysts (M = Ru, Cu, Pd, Pt) primary aromatic amines also appeared, via cleavage of the heterocyclic ring of the indoles. Ni and NiCu catalysts have the lowest selectivity for the formation of this family of compounds, while NiRu had the highest selectivity. Catalysts containing noble metals also produced monosubstituted lkylaromatics, due to the deamination of the aromatic amines, with the NiPt catalyst providing the highest molar yield (∼7%). We propose catalytic and non-catalytic hydrothermal reaction pathways for tryptophan based on the observed product distributions. The bimetallic particles were smaller than the pure Ni particles and the surfaces of NiRu and NiPd particles were enriched in Ni, relative to the nominal bulk composition.
- 合写作者：
- Yang Guo, Zhifeng Chen, Robert M. Rioux, Phillip E. Savage*
- 是否译文：
- 否
- 发表时间：
- 2018-09-11