大学化学 >> 2026, Vol. 41 >> Issue (8): 459-468.doi: 10.12461/PKU.DXHX202511209

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碳中和背景下的CO2还原——第57届国际化学奥林匹克试题第6题解析

肖文姣, 成阳阳, 蒋海英   

  1. 西北大学化学与材料科学学院, 教育部合成与天然功能分子重点实验室, 陕西 西安 710127
  • 收稿日期:2025-11-30 录用日期:2025-12-30 发布日期:2026-08-25
  • 通讯作者: 蒋海英 E-mail:jianghy@nwu.edu.cn Haiying Jiang
  • 基金资助:
    陕西省线下一流课程建设项目(物理化学)

CO2 Reduction in the context of carbon neutrality: analysis of the problem 6 of the 57th International Chemistry Olympiad

Wenjiao Xiao, Yangyang Cheng, Haiying Jiang   

  1. Key Laboratory of Synthetic and Natural Functional Molecule of the Ministry of Education, College of Chemistry and Materials Science, Northwest University, Xi'an 710127, Shaanxi Province, China
  • Received:2025-11-30 Accepted:2025-12-30 Published:2026-08-25
  • Contact: Haiying Jiang E-mail:jianghy@nwu.edu.cn

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摘要： 第57届国际化学奥林匹克第6题以二氧化碳资源化利用为主题，构建了从热力学基础到能源化学前沿的完整考查框架。试题通过设计热化学循环与光催化还原两条技术路径，系统考查了学生在化学平衡、反应动力学、半导体能带理论等方面的知识融合能力。本文详细解析此题，拓展介绍相关知识，加深读者对竞赛试题的理解。

关键词: 化学奥林匹克竞赛, 试题解析, 光催化还原CO2, 物理化学, 无机化学

Abstract: Problem 6 of the 57th International Chemistry Olympiad addresses the resource utilization of carbon dioxide, establishing a comprehensive assessment framework that spans from thermodynamic fundamentals to cutting-edge energy chemistry. By incorporating two distinct technical approaches—thermochemical cycles and photocatalytic reduction—the problem systematically evaluates students' integrative understanding of chemical equilibrium, reaction kinetics, and semiconductor band theory. This paper presents a detailed solution to the problem while expanding upon relevant theoretical concepts to enhance readers' comprehension of competition-level chemistry questions.

Key words: International Chemistry Olympiad, Problem analysis, Photocatalytic reduction of CO2, Physical chemistry, Inorganic chemistry