用微量铁修饰的CeO2-支持的核心外CoO@Co催化剂,用于选择性地将黄转化为1,5-二醇
Shenyu Wang1, Junjie Zhang1, Ying Zhang1
1Department of Applied Chemistry, Key Laboratory of Precision and Intelligent Chemistry, University of Science and Technology of China, Hefei, Anhui, 230026, China.
ChemSusChem
|November 5, 2024
概括
我们开发了新型的核心外类催化剂,在的支上,以有效地将furfural转化为1,5-pentanediol (1,5-PeD). 优化的催化剂实现了创纪录的活性,突出了为选择性化学生产量身定制的结构.
科学领域:
- 催化剂是一种催化剂.
- 材料科学 材料科学 材料科学
- 绿色化学 绿色化学
背景情况:
- 素转化为1,5-二醇 (1,5-PeD) 对于可持续的化学合成至关重要.
- 选择性C2-O键裂解和C=C化是关键的步骤.
- 寻求非贵金属催化剂的成本效益.
研究的目的:
- 开发高效的核心外CoO@Co纳米粒子催化剂,支持CeO2用于furfural化.
- 调查加载,铁剂和降温温度对催化性能的影响.
- 为了阐明选择性1,5-PeD生产的结构-活性关系.
主要方法:
- CeO2的合成支持了CoO@Co核心纳米粒子催化剂.
- 优化催化剂组成 (Co加载,Fe剂) 和降温.
- 使用H2-TPR,XRD,HAADF-STEM,FT-IR,XPS和XANES进行表征.
- 用于化furfural到1,5-PeD的活性测试.
主要成果:
- 使用7Co-0.2Fe/CeO2催化剂降低至500°C的最佳性能.
- 创纪录的1,5-PeD生产率为54.76 mmol/gCo/h.
- 已证明的结构-活性关系:CO2+用于C-O裂变,CO0用于C=C化.
- 铁剂优化了CO2+/CO0比率,增强了吸附,并抑制了副作用.
结论:
- 在CeO2上的CoO@Co核心外结构对于选择性furfural转化为1,5-PeD非常有效.
- 催化剂的组成和结构调整对于实现高选择性和活性至关重要.
- 这项工作为设计用于生物质价值化的先进非贵金属催化剂提供了洞察力.
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