近日，bet36体育投注:化学研究所韩布兴团队报道了基于光的CH4和CO2的无催化剂转化。相关论文于2025年12月9日发表在《自然—光子学》杂志上。

甲烷与二氧化碳的光子介导转化为生产运输燃料和化学品提供了一条绿色可持续的路径。

研究组报道了一种创新的无催化剂策略，通过光能将甲烷和二氧化碳转化为一氧化碳/氢气和乙烷。研究发现，波长为185纳米的高能光子可引发该反应，而额外使用更长波长的不同能量光子能进一步提升反应效率。特别地，185纳米与200–1100纳米光子的组合使一氧化碳、氢气和乙烷的生成速率分别达到3.1毫摩尔每立方米每小时、1.93毫摩尔每立方米每小时和2.53毫摩尔每立方米每小时。适量的水蒸气加入被证实能显著促进反应。此外，在模拟无氧环境的实验中，实现了1.51%（24小时内）的总气体转化率。这项工作为在环境条件下、不使用任何催化剂，利用甲烷和二氧化碳生产燃料和化学品开辟了一条前景广阔的途径。

附：英文原文

Title: Light-based catalyst-free conversion of CH4 and CO2

Author: Zhai, Jianxin, Wang, Ruo-Ya, Chen, Xiao, Zhou, Baowen, Xia, Zhanghui, Wu, Haihong, Xue, Teng, Jia, Shuaiqiang, Chen, Chunjun, Jing, Lihong, He, Mingyuan, Han, Buxing

Issue&Volume: 2025-12-09

Abstract: The photon-mediated conversion of CH4 and CO2 represents a green and sustainable route for producing transportation fuels and chemicals. Here we report an innovative, catalyst-free strategy for the conversion, by light, of CH4 and CO2 into CO/H2 and C2H6. High-energy photons with a wavelength of 185nm were found to initiate the reaction, and the additional use of photons with different energies at longer wavelengths further improved the reaction efficiency. In particular, the combination of 185-nm and 200–1,100-nm photons enabled CO, H2 and C2H6 production rates of 3.1mmolm3h1, 1.93mmolm3h1 and 2.53mmolm3h1, respectively. Moderate addition of H2O was found to aid the reaction considerably. Moreover, a total gas conversion of 1.51% (24h) was achieved in experiments simulating an oxygen-free environment. This work opens up a promising route for producing fuels and chemicals using CH4 and CO2 without the use of any catalysts, under ambient conditions.

DOI: 10.1038/s41566-025-01800-3

Source: https://www.nature.com/articles/s41566-025-01800-3