Zhang Jichang, Li Chenxia, Zhang Ming, Zhang Jianqi, Wu Xi, Li Xuesong, Lü Wei
Cardiology Department, The Second Hospital of Jilin University, Jilin University Changchun 130041 China.
Key Laboratory of Advanced Structural Materials, Ministry of Education & Advanced Institute of Materials Science, Changchun University of Technology Changchun 130012 China
Nanoscale Adv. 2020 Jul 31;2(9):3963-3971. doi: 10.1039/d0na00502a. eCollection 2020 Sep 16.
Sluggish oxygen reduction reaction kinetics have been a main obstacle for commercial application of fuel cells. To replace Pt-based noble metal electrocatalysts, it is crucial to develop economical materials as electrocatalysts. Herein, we provide a strategy to prepare Co and N codoped carbon nanotubes for efficient oxygen reduction reaction. The composites are synthesized by hydrothermal reaction followed by calcination at 900 °C. Graphitic carbon nitride is used as a template and nitrogen source, and citric acid and cobalt nitrate hexahydrate are used as carbon and cobalt sources, respectively. Due to the synergistic effect of Co and N codoping and increased specific surface area, the resulting Co and N codoped carbon nanotubes exhibit excellent catalytic performance. The present results provide experimental support for further development of electrocatalysts.
缓慢的氧还原反应动力学一直是燃料电池商业应用的主要障碍。为了替代基于铂的贵金属电催化剂，开发经济的电催化剂材料至关重要。在此，我们提供一种制备用于高效氧还原反应的钴和氮共掺杂碳纳米管的策略。通过水热反应合成复合材料，随后在900℃下煅烧。石墨相氮化碳用作模板和氮源，柠檬酸和六水合硝酸钴分别用作碳源和钴源。由于钴和氮共掺杂的协同效应以及比表面积的增加，所得的钴和氮共掺杂碳纳米管表现出优异的催化性能。目前的结果为电催化剂的进一步发展提供了实验支持。
