Nitrogen-Doped Co Catalyst Derived from Carbothermal Reduction of Cobalt Phyllosilicate and its Application in Levulinic Acid Hydrogenation to γ-Valerolactone

Dien Thien To, Yu Chia Chiang, Jyh Fu Lee, Chi Liang Chen, Yu Chuan Lin

研究成果: Article同行評審

1 引文 斯高帕斯(Scopus)

摘要

Abstract: An active and stable Co catalyst decorated by N species was developed and applied in the hydrogenation of levulinic acid (LA) to γ-valerolactone (GVL). The catalyst was first synthesized by grafting glucose (G) and melamine (M) on cobalt phyllosilicate (CoPS) hydrothermally, and then by pyrolyzing GM/CoPS at a designated temperature for the carbothermal reduction (denoting as GM@CoPS-X; X = temperature). Among tested catalysts, GM@CoPS-700 showed the most promising GVL productivity (1684 mmol GVL/gsurface Co /h), stability, and recyclability (an ca. 8% loss of initial activity) in five consecutive trials. Doped N species were found to improve the concentration of Coδ+ (0 < δ < 2) with a strong Lewis acidity. The synergy of Coδ+ and Co0 was the key in enhancing the activity of Co-based catalysts derived from CoPS. Graphic Abstract: [Figure not available: see fulltext.]

原文English
頁(從 - 到)2090-2100
頁數11
期刊Catalysis Letters
152
發行號7
DOIs
出版狀態Published - 2022 7月

All Science Journal Classification (ASJC) codes

  • 催化
  • 化學 (全部)

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