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首页> 外文期刊>RSC Advances >Nitrogen-doped carbon sheets derived from chitin as non-metal bifunctional electrocatalysts for oxygen reduction and evolution
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Nitrogen-doped carbon sheets derived from chitin as non-metal bifunctional electrocatalysts for oxygen reduction and evolution

机译：衍生自甲蛋白的氮掺杂碳板作为用于氧还原和进化的非金属双官能电催化剂

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摘要

Affordable, efficient electrocatalysts for oxygen reduction reactions (ORR) and oxygen evolution reactions (OER) are critical for various energy technologies. Herein, we report that an activated carbon sheet (ACS) derived from chitin is an efficient non-metal bifunctional electrocatalyst for both ORR and OER. In alkaline media, the as-prepared ACS exhibited remarkable electrocatalytic activity for the oxygen reduction reaction, which was significantly superior to an unactivated carbon sheet (CS) and comparable to the commercial Pt/C catalyst with excellent durability and resistance to the crossover effect. Meanwhile, the same ACS also presents high catalytic activity towards OER, with a small overpotential of similar to 1.64 +/- 0.02 V versus RHE. The excellent electrocatalytic properties of the ACS originated from the combined effect of optimal nitrogen doping, high surface area, and porous architecture. This work demonstrates that the ACS is a promising material candidate with high-performance in electrocatalytic applications in energy technologies.
机译：实惠的，用于氧还原反应（ORR）和氧气演化反应（OER）的高效电催化对于各种能量技术至关重要。在此，我们报告说，衍生自甲壳素的活性炭片（ACS）是orr和oer的有效的非金属双功能电催化剂。在碱性培养基中，AS制备的ACS对氧还原反应表现出显着的电催化活性，其显着优于未渴望的碳板（Cs），并与商业Pt / C催化剂相当，具有优异的耐久性和对交叉效果的抗性。同时，相同的AC也向OER呈现出高催化活性，具有与1.64 +/- 0.02 V与RHE相似的小过电位。 ACS的优异电催化性质源于最佳氮掺杂，高表面积和多孔结构的综合作用。这项工作表明，ACS是一种有前途的材料候选物，在能源技术中具有高性能的电催化应用。

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  • 来源
    《RSC Advances》 |2015年第69期|共9页
  • 作者

    Yuan Haoran; Deng Lifang; Cai Xixi; Zhou Shungui; Chen Yong; Yuan Yong;

  • 作者单位

    Chinese Acad Sci Guangzhou Inst Energy Convers Guangzhou 510640 Guangdong Peoples R China;

    Chinese Acad Sci Guangzhou Inst Energy Convers Guangzhou 510640 Guangdong Peoples R China;

    Guangdong Inst Ecoenvironm &

    Soil Sci Guangdong Key Lab Agr Environm Pollut Integrated Guangzhou 510650 Guangdong Peoples R China;

    Chinese Acad Sci Guangzhou Inst Energy Convers Guangzhou 510640 Guangdong Peoples R China;

    Guangdong Inst Ecoenvironm &

    Soil Sci Guangdong Key Lab Agr Environm Pollut Integrated Guangzhou 510650 Guangdong Peoples R China;

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  • 正文语种 eng
  • 中图分类 化学;
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