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Unprecedented carbon sub-microspheres with a porous hierarchy for highly efficient oxygen electrochemistry
Nanoscale ( IF 5.8 ) Pub Date : 2017-11-09 00:00:00 , DOI: 10.1039/c7nr06801h Yun-Pei Zhu 1, 2, 3, 4 , Shi-Zhang Qiao 1, 2, 3, 4, 5
Nanoscale ( IF 5.8 ) Pub Date : 2017-11-09 00:00:00 , DOI: 10.1039/c7nr06801h Yun-Pei Zhu 1, 2, 3, 4 , Shi-Zhang Qiao 1, 2, 3, 4, 5
Affiliation
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Developing efficient and robust electrocatalysts for bifunctional oxygen electrocatalysis is crucial for renewable energy technology. Herein, nitrogen and phosphorus co-doped carbon sub-microspheres with fascinating mesostructures are rationally synthesized through an effective soft-templating strategy. The unique features of substantial doping, large surface areas and well-defined porosity endow the dual-doped carbons with high-density electroactive sites, considerable active surface areas and improved mass transfer, ensuring impressive activity and durability in catalyzing oxygen reduction and evolution reactions, even competing with the noble metal benchmarks, thus assuring their use as an air cathode in a rechargeable Zn–air battery with low charge–discharge overpotential and remarkable long-term stability.
中文翻译：
前所未有的具有多孔层次结构的碳亚微球，可实现高效的氧电化学
开发用于双功能氧电催化的高效，耐用的电催化剂对于可再生能源技术至关重要。在本文中，通过有效的软模板策略合理地合成了具有迷人介观结构的氮和磷共掺杂碳亚微球。大量掺杂，较大的表面积和明确的孔隙率的独特特征赋予了双掺杂碳以高密度的电活性位，显着的活性表面积并改善了质量传递，确保了在催化氧还原和放出反应方面令人印象深刻的活性和耐久性，甚至与贵金属基准竞争，从而确保了它们在可充电Zn-空气电池中作为空气阴极的用途，该电池的低充电-放电超电势和出色的长期稳定性。
更新日期：2017-11-23
中文翻译：
前所未有的具有多孔层次结构的碳亚微球，可实现高效的氧电化学
开发用于双功能氧电催化的高效，耐用的电催化剂对于可再生能源技术至关重要。在本文中，通过有效的软模板策略合理地合成了具有迷人介观结构的氮和磷共掺杂碳亚微球。大量掺杂，较大的表面积和明确的孔隙率的独特特征赋予了双掺杂碳以高密度的电活性位，显着的活性表面积并改善了质量传递，确保了在催化氧还原和放出反应方面令人印象深刻的活性和耐久性，甚至与贵金属基准竞争，从而确保了它们在可充电Zn-空气电池中作为空气阴极的用途，该电池的低充电-放电超电势和出色的长期稳定性。
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