A tungsten-mediated closed cycle of reactivity for the reduction of CO _2 to CO

Jayarathne U.; Chandrasekaran P.; Jacobsen H.; Mague J.T.; Donahue J.P.

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A tungsten-mediated closed cycle of reactivity for the reduction of CO _2 to CO

机译：钨介导的闭合反应性循环，用于将CO _2还原为CO

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The recycling of CO_2 by reduction to CO is an important objective in the context of renewable carbon feedstock chemicals. A tungsten-mediated reduction of CO_2 to CO reported by Mayer and coworkers has been re-examined, and it is shown that a series of four well-defined stoichiometric steps can be executed which form a closed cycle and sum as CO_2 + 2H~+ + 2e~- → CO + H _2O. Energetic parameters of this system are probed by cyclic voltammetry, by calculations of gas-phase reaction enthalpies for each of the four steps, and by calculation of the WO bond dissociation energy for the tungsten species that results from oxidation addition of CO_2.

机译：在可再生碳原料化学品的背景下，通过还原为CO来回收CO_2是一个重要目标。已经重新检查了Mayer及其同事报道的钨介导的CO_2还原为CO的方法，结果表明可以执行一系列四个明确定义的化学计量步骤，形成一个闭合循环，总和为CO_2 + 2H〜+ + 2e〜-→CO + H _2O。通过循环伏安法，通过计算四个步骤中每个步骤的气相反应焓，以及通过计算因氧化加成CO_2而产生的钨物种的WO键离解能，可以探测该系统的能量参数。

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《Dalton transactions: An international journal of inorganic chemistry》 |2010年第40期|共10页
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Jayarathne U.; Chandrasekaran P.; Jacobsen H.; Mague J.T.; Donahue J.P.;
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A tungsten-mediated closed cycle of reactivity for the reduction of CO _2 to CO

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