Sm摻雜 CeO2/C 復(fù)合物的制備及其對二氧化碳加甲醇生成碳酸二甲酯性能的影響研究
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中圖分類號：TQ225.5 文獻(xiàn)標(biāo)志碼：A 文章編號：2095-2945（2025）20-0075-04
Abstract： Compounding cerium oxide （ceO2） with carbon is an effective means to optimize the chemical environment around catalyticactivesites.Inthispaper，theefectofSmelementcontentonthecatalyticactivityofcarbon-cerumoxidecomposie 1 CeO2/C ）wasinvestigated. The results showed that the space-time yield of the 3% Sm-CeO/C catalyst was ashigh as 4.06 mmol/gcat at a pressure of 6.9MPa and a temperature of 140‰ for 2 hours.Combined with material characterization，it was foundthatSmdopingcouldinducethegenerationofoxygenvacancies（O.）inthecatalyst，furterimprovingtheactivityof the catalyst.
Keywords： DMC; CeO2/C composite; doping modification; oxygen vacancy; catalytic activity
隨著工業(yè)的快速發(fā)展， CO2 排放量逐年遞增，由此引發(fā)的大氣污染問題已成為當(dāng)前亟需應(yīng)對的關(guān)鍵環(huán)境挑戰(zhàn)。（剩余5333字）