Heteroatom-Doped Graphene for Efficient NO Decomposition by Metal-Free Catalysis,ACS Applied Materials & Interfaces

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Heteroatom-Doped Graphene for Efficient NO Decomposition by Metal-Free Catalysis
ACS Applied Materials & Interfaces ( IF 8.3 ) Pub Date : 2018-09-27 00:00:00 , DOI: 10.1021/acsami.8b09503
Yan Wang ₁ , Yuesong Shen ₁ , Yiwen Zhou ₁ , Zhiwei Xue ₁ , Zhenyuan Xi ₁ , Shemin Zhu ₁

Affiliation

N, S, and B-doped graphene was fabricated by thermally treating graphene oxide with heteroatom-containing precursors and its catalytic behavior for NO decomposition reaction was evaluated. For the first time, the feasibility for heteroatom-doped graphene to be effectively used for decomposing NO was experimentally confirmed. The activity of different heteroatom-doped graphene follows the order: N-doped graphene > S-doped graphene > B-doped graphene. The electronegativity difference, specific area, and unique functional groups (pyridinic N and thiophene S) of the heteroatom-doped graphene play a crucial role in the catalytic performance. Furthermore, the effect of pyridinic N and thiophene S on the reaction mechanism was proposed. Pyridinic N and thiophene S can transfer extra electrons into π-antibonding orbit of NO, thus weakening N–O bond.

中文翻译：

杂原子掺杂石墨烯通过无金属催化有效地分解NO

通过用含杂原子的前体对氧化石墨烯进行热处理来制备N，S和B掺杂的石墨烯，并评估其对NO分解反应的催化性能。首次通过实验证实了杂原子掺杂的石墨烯被有效地用于分解NO的可行性。不同杂原子掺杂的石墨烯的活性遵循以下顺序：N掺杂的石墨烯> S掺杂的石墨烯> B掺杂的石墨烯。杂原子掺杂石墨烯的电负性差异，比表面积和独特的官能团（吡啶氮和噻吩S）在催化性能中起着至关重要的作用。此外，提出了吡啶二氮和噻吩S对反应机理的影响。吡啶N和噻吩S可以将多余的电子转移到NO的π反键轨道上，从而削弱N-O键。

更新日期：2018-09-27

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