评“甲烷的选择性厌氧氧化促进甲醇的直接合成”一文。
Comment on "Selective anaerobic oxidation of methane enables direct synthesis of methanol".
机构信息
Scripps Energy and Materials Center, The Scripps Research Institute, Jupiter, FL 33458, USA.
出版信息
Science. 2017 Oct 13;358(6360). doi: 10.1126/science.aan5970.
Sushkevich (Reports, 5 May 2017, p. 523) report on the use of water to oxidize methane to methanol. This seems problematic because the reaction of CH and water to generate methanol and H is highly unfavorable at any temperature (Δ of reaction ≈ +28 kcal/mol at 200°C, equilibrium constant ≈ 10). Consequently, even if the reaction is separated into two steps, it seems inconceivable to carry out such a net reaction in a practical manner.
苏什科夫（Reports，2017 年 5 月 5 日，第 523 页）报告了用水将甲烷氧化为甲醇的用途。这似乎有问题，因为在任何温度下，CH 和水反应生成甲醇和 H 的反应都是非常不利的（在 200°C 时，反应的Δ ≈ +28 kcal/mol，平衡常数 ≈ 10）。因此，即使将反应分为两步进行，以实际方式进行这样的净反应似乎也是不可思议的。
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