The escalating emission of CO has caused a significant environmental impact. Hydrogenation of CO to methanol stands as the primary objective in the liquid sunlight vision, aiming to mitigate CO emissions. CuZn-based transition metal catalysts, known for their cost-effectiveness, demonstrate commendable catalytic performance at moderate temperatures and pressures, showcasing considerable potential in industrial applications. Consequently, a series of catalysts, composed of CuZn-based species supported on CeO with strategically introduced appropriate oxygen vacancies, were meticulously prepared. It worth to noting that the size of Cu was precisely tuned, along with the enhanced ability to the adsorption and activation of CO and H. As a result, the optimal CuZn/CeO catalyst exhibits high methanol formation rate, recording at 433.4 g kg h with selectivity of 68.5% at 260 °C and 3 MPa. Simultaneously, the reaction path and the evolution of intermediates in CO hydrogenation was thoroughly delineated.

中文翻译：

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CuZn/CeO2催化剂CO2加氢制甲醇的铜尺寸效应

CO排放量的不断增加对环境造成了重大影响。将二氧化碳加氢为甲醇是液体阳光愿景的主要目标，旨在减少二氧化碳排放。 CuZn基过渡金属催化剂以其成本效益而闻名，在中等温度和压力下表现出值得称赞的催化性能，在工业应用中展现出巨大的潜力。因此，精心制备了一系列由 CeO 负载的 CuZn 基物质组成的催化剂，并策略性地引入了适当的氧空位。值得注意的是，Cu的尺寸经过精确调整，同时增强了对CO和H的吸附和活化能力。因此，最佳的CuZn/CeO催化剂表现出较高的甲醇生成速率，记录为433.4 g kg h在 260 °C 和 3 MPa 下选择性为 68.5%。同时，彻底描述了CO加氢过程中的反应路径和中间体的演变。