Sustainable catalytic pathways for biofuel precursors: quantitative conversion of glucose to gluconic acid using Pt-Zn biochar catalyst
文献类型: 外文期刊
作者: Hao, Hengyu;Guo, Haixin;Chen, Bingkun;Smith Jr, Richard Lee;Shen, Feng
作者机构:
关键词: Biomass;Pt-Zn alloy;Biochar;Solvothermal synthesis;One-pot reaction;Sugar acid
期刊名称: BIOFUEL RESEARCH JOURNAL-BRJ
ISSN: 2292-8782
年卷期: 2024 年 11 卷 3 期
页码:
收录情况: EI(2024版)
摘要: Achieving quantitative conversion of biomass-derived feedstocks under ambient environmental conditions (20 degrees C, atmospheric air, 0.1 MPa) is a critical milestone for sustainability in chemical processes. Herein, the quantitative conversion of glucose to gluconic acid was accomplished under ambient environmental conditions without any additives using a Pt-Zn intermetallic nanoparticle-supported biochar catalyst prepared from raw rice straw (Pt-Zn/strawC) via a straightforward one-pot solvothermal reaction with ethylene glycol solvent. Spectroscopic analyses verified the formation of the Pt-Zn intermetallic alloy and confirmed strong electronic metal-support interactions. The Pt-Zn/strawC catalyst (Pt:Zn molar ratio of 1:6) was highly selective for the conversion of glucose to gluconic acid, whereas yields as high as 99.9% (98.9% gluconic acid, 1.0% glucaric acid) were reached at 20 o C under base-free and additive-free conditions. Isotope measurements and density functional theory revealed synergistic interactions in the Pt-Zn alloy, wherein the alloy tended to absorb glucose and active O2 2 into superoxide radical (O2). 2 ). This work demonstrates a chemocatalytic method that is practical for environmental conditions and provides a new avenue for sustainable conversion of lignocellulosic biomass to chemical products. (c) 2024 Alpha Creation Enterprise CC BY 4.0
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