Fe-Anchored Graphene Oxide: A Low-Cost and Easily Accessible Catalyst for Low-Temperature CO Oxidation
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- 作者：Fengyu Li ; Jijun Zhao ; Zhongfang Chen
- 刊名：The Journal of Physical Chemistry C
- 出版年：2012
- 出版时间：January 26, 2012
- 年：2012
- 卷：116
- 期：3
- 页码：2507-2514
- 全文大小：644K
- 年卷期：v.116,no.3(January 26, 2012)
- ISSN：1932-7455
文摘
By means of first-principles computations, we investigated the catalytic capability of the Fe-anchored graphene oxide (Fe鈥揋O) for CO oxidation with O2. The high-energy barrier of Fe atom diffusion on GO and the strong binding strength of Fe anchored on GO exclude the metal clustering problem and enhance the stability of the Fe鈥揋O system. The Fe-anchored GO exhibits good catalytic activity for CO oxidation via the favorable Eley鈥揜ideal (ER) mechanism with a two-step route, while the Langmuir鈥揌inshelwood (LH) mechanism is not kinetically favorable. The low-cost Fe-anchored GO system can be easily synthesized and serves as a promising green catalyst for low-temperature CO oxidation.