N, P Dual-Doped Porous Carbon Nanosheets for High-Efficiency CO2 Electroreduction,ACS Sustainable Chemistry & Engineering

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N, P Dual-Doped Porous Carbon Nanosheets for High-Efficiency CO2 Electroreduction
ACS Sustainable Chemistry & Engineering ( IF 7.1 ) Pub Date : 2022-01-25 , DOI: 10.1021/acssuschemeng.1c07601
Xiaodu Liang ₁ , Na Tian ₁ , Zhiyou Zhou ₁ , Shigang Sun ₁

Affiliation

Electroreduction of CO₂ to CO with metal-free nitrogen-doped carbon (N–C) catalysts offers an eco-friendly approach for CO₂ reuse. Nevertheless, it is challenging to achieve high selectivity and activity when biased at low overpotentials. Here, we report a porous N, P dual-doped carbon nanosheet catalyst (NPC) synthesized through a novel sacrificial templating approach for efficient CO₂ reduction. The as-obtained NPC achieves a high CO Faradaic efficiency of 88% and exhibits good stability for 27 h at a low overpotential (only 300 mV), which attributes to the superior 2D carbon nanosheet structure with a high surface area and synergistic effects of N, P on the carbon frameworks. This work provides insights into designing metal-free N–C catalysts for high-efficiency CO₂ reduction.

中文翻译：

用于高效 CO2 电还原的 N、P 双掺杂多孔碳纳米片

_{使用无金属氮掺杂碳 (N–C) 催化剂将 CO 2 电还原为 CO 为 CO 2}再_利用提供了一种环保的方法。然而，当偏向于低过电位时，实现高选择性和活性是具有挑战性的。在这里，我们报告了一种多孔 N、P 双掺杂碳纳米片催化剂 (NPC)，该催化剂是通过一种新型的牺牲模板方法合成的，用于高效 CO ₂减少。所获得的 NPC 实现了 88% 的高 CO 法拉第效率，并在低过电位（仅 300 mV）下表现出良好的 27 小时稳定性，这归因于具有高表面积的优越二维碳纳米片结构和 N 的协同效应, P 在碳框架上。这项工作为设计用于高效 CO ₂还原的无金属 N-C 催化剂提供了见解。

更新日期：2022-02-07

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