催化作用
化学工程
磷酸
碳纤维
金属
生物炭
材料科学
生物量(生态学)
化学
热解
有机化学
复合材料
复合数
海洋学
地质学
工程类
作者
Yin Zhu,Xing Liu,Fengzhen Wu,Beili Lu,Biao Huang,Yandan Chen,Lin Guo
出处
期刊:ACS Sustainable Chemistry & Engineering
[American Chemical Society]
日期:2022-01-06
卷期号:10 (2): 911-922
被引量:12
标识
DOI:10.1021/acssuschemeng.1c06692
摘要
Based on low-cost, N-containing biomass waste peanut shells and phosphoric acid, the P element was successfully introduced into the carbon skeleton to obtain P-doped porous carbon materials, with inherent N functionality. In comparison to carbon catalysts functionalized with just N or P (NC-800 or PC), the as-prepared P-doped, N-containing porous carbon materials (NPC-T) possessed superior catalytic activity toward the aerobic oxidation of benzyl alcohol (BA). According to these findings, a synergistic effect of N and P species on the catalytic efficiency of carbon materials was observed. The amounts of graphitic N and C3PO species on the surface of NPC-T were shown to be correlated with catalytic activity. In the case of NPC-800, 100% conversion and 99.7% selectivity could be achieved along with a high TOF value (2.49 × 10–3 mol·g–1·h–1). Even when applied to various alcohols, the NPC-800 still showed good catalytic activity. Based upon the mechanistic investigations, both radical and nonradical reaction pathways occurred during the aerobic oxidation of BA over the NPC-800. Furthermore, to facilitate catalyst recycling, the granular P-doped, N-containing carbon (granular NPC-800) was generated, utilizing a kneading heat treatment and extrusion molding technique that did not require the addition of any extra adhesive. This work highlighted the potential high-value utilization of biomass waste in constructing P-doped, N-containing carbon materials and the application as metal-free catalysts in the aerobic selective oxidation reactions.
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