试图通过仿生2e(-) + 2H(+) 转移分子催化电化学CO2转化为甲醇
Jean-Michel Saveant1, Cédric Tard1
1Univ Paris Diderot, Sorbonne Paris Cité, Laboratoire d'Electrochimie Moléculaire , UMR 7591 CNRS, 15 rue Jean-Antoine de Baïf, F-75205 Paris Cedex 13, France.
Journal of the American Chemical Society
|December 31, 2015
概括
研究人员研究了二氧化碳 (CO2) 到甲醇的电化学转化. 他们的研究结果表明,之前报告的催化剂6,7-二甲基-4-基-2-甲基胺在测试条件下不会产生甲醇或酸盐.
科学领域:
- 电化学和光化学
- 催化剂
- 可再生能源和环境科学
背景情况:
- 通过电化学和光化学方法将二氧化碳 (CO2) 转化为液体燃料对于能源和环境解决方案至关重要.
- 从二氧化碳生产甲醇是非常理想的,超越一氧化碳 (CO) 和酸盐.
- 生物模拟化物供体用于减少二氧化碳.
研究的目的:
- 重新评估报告中的6,7-二甲基-4-基-2-甲二烯的催化活性,用于电化学转化二氧化碳成甲醇和酸盐.
- 为了验证之前的研究结果 (J. 是的 在化学上. 这就是我现在所做的. 2014年,136,14007) 使用先进的分析技术.
主要方法:
- 在报告的电解和更多的负潜力.
- 使用 H2O 预和的质子核磁共振 ((1) H NMR) 的分析.
- 高灵敏度的气相色谱 (GC).
- 还考虑了红外 (IR) 光谱和碳-13核磁共振 (13C NMR).
主要成果:
- 电解没有产生甲醇或甲酸盐,如 (1) H NMR 和 GC 分析所证明的那样.
- (1) H NMR 提供了明确的结果,优于 (13) C NMR 和红外光谱检测甲醇和酸盐.
- GC证实没有甲醇形成.
结论:
- 在电化学降解二氧化碳到甲醇和甲酸盐过程中,对6,7-二甲基-4-基-2-甲基胺的催化作用的说法无法得到证实.
- 直接或间接地将二氧化碳转化为甲酸盐和甲醇的电化学降解仍然是一个开放的研究问题.
- 在这个具有重大影响力的研究领域,对实验结果进行严格的验证至关重要.
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