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Preparation of Porous [email protected]3O4 and Its Application in the Oxygen Reduction Reaction and Supercapacitor
ACS Sustainable Chemistry & Engineering ( IF 7.1 ) Pub Date : 2018-10-11 00:00:00 , DOI: 10.1021/acssuschemeng.8b04447
Tian Wang 1 , Qiujian Le 1 , Xiaolong Guo 2 , Ming Huang 3 , Xiaoying Liu 4 , Fan Dong 4 , Jintao Zhang 5 , Yu Xin Zhang 1
ACS Sustainable Chemistry & Engineering ( IF 7.1 ) Pub Date : 2018-10-11 00:00:00 , DOI: 10.1021/acssuschemeng.8b04447
Tian Wang 1 , Qiujian Le 1 , Xiaolong Guo 2 , Ming Huang 3 , Xiaoying Liu 4 , Fan Dong 4 , Jintao Zhang 5 , Yu Xin Zhang 1
Affiliation
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Porous graphene has been recognized as a promising material for applications in electrochemical applications. Engineering the porous graphene-based hierarchical and hybrid structures is a promising way to further improve the electrochemical performances. Here, we reported a rational design of the porous [email protected]3O4 (PGM) structure for the applications in both the oxygen reduction reaction (ORR) and supercapacitor. Thanks to the efficient porous graphene substrate and rational decoration of Mn3O4, the catalytic performance of as-prepared PGM is comparative to that of Pt/C when used as electrocatalysts for the ORR, showing a relatively positive onset and half-wave potential (0.89 and 0.81 V) and a large diffusion-limiting current density (5.85 mA cm–2). In addition, PGM also shows good specific capacitance (208.3 F g–1), cycle stability, and rate performance when used in the supercapacitor electrodes and asymmetric device (maximum energy density of 30.1 Wh kg–1 and power density of 9500 W kg–1).
中文翻译:
[电子邮件保护的] 3 O 4多孔材料的制备及其在氧还原反应和超级电容器中的应用
多孔石墨烯已被认为是用于电化学应用的有前途的材料。工程化基于多孔石墨烯的分层和杂化结构是进一步改善电化学性能的有前途的方法。在这里,我们报告了一种适用于氧还原反应(ORR)和超级电容器的多孔[电子邮件保护] 3 O 4(PGM)结构的合理设计。得益于高效的多孔石墨烯衬底和Mn 3 O 4的合理装饰,当用作ORR的电催化剂时,制得的PGM的催化性能与Pt / C相当,表现出相对正的开始和半波电势(0.89和0.81 V)以及大的扩散限制电流密度( 5.85 mA cm –2)。此外,PGM在超级电容器电极和非对称设备中使用时,还显示出良好的比电容(208.3 F g –1),循环稳定性和倍率性能(最大能量密度为30.1 Wh kg –1,功率密度为9500 W kg – 1)。
更新日期:2018-10-11
中文翻译:

[电子邮件保护的] 3 O 4多孔材料的制备及其在氧还原反应和超级电容器中的应用
多孔石墨烯已被认为是用于电化学应用的有前途的材料。工程化基于多孔石墨烯的分层和杂化结构是进一步改善电化学性能的有前途的方法。在这里,我们报告了一种适用于氧还原反应(ORR)和超级电容器的多孔[电子邮件保护] 3 O 4(PGM)结构的合理设计。得益于高效的多孔石墨烯衬底和Mn 3 O 4的合理装饰,当用作ORR的电催化剂时,制得的PGM的催化性能与Pt / C相当,表现出相对正的开始和半波电势(0.89和0.81 V)以及大的扩散限制电流密度( 5.85 mA cm –2)。此外,PGM在超级电容器电极和非对称设备中使用时,还显示出良好的比电容(208.3 F g –1),循环稳定性和倍率性能(最大能量密度为30.1 Wh kg –1,功率密度为9500 W kg – 1)。
