Flower-like Co3Ni1B nanosheets based on reduced graphene oxide (rGO) as an efficient electrocatalyst for the oxygen evolution reaction
Flower-like Co3Ni1B nanosheets based on reduced graphene oxide (rGO) as an efficient electrocatalyst for the oxygen evolution reaction
复制标题
DOI：
10.1039/d2nj02165j
复制
发表时间：
2022-06-10
影响因子：
3.3
通讯作者：
Mo, Zunli
中科院分区：
文献类型：
--
作者：
Ding, Junxia;Yue, Ruimei;Mo, Zunli
制备高效、稳定的非贵金属电催化剂用于水电解过程中的析氧反应是非常重要的。在此，还原氧化石墨烯（rGO）负载花状Co 3 Ni 1B纳米片成功地通过静态沉淀法在室温下合成，并用作有效的析氧反应（OER）电催化剂。这种二维（2D）催化剂具有高的比表面积，其暴露了大量的活性位点。rGO提高了电导率，并促进了OER过程中的快速电子转移。在碱性介质中，Co 3 Ni 1B-rGO催化剂表现出上级OER活性，在10 mA cm（-2）的电流密度下具有318 mV的低过电位，并且稳定性长达至少16小时。这项工作提供了深入的见解，方便的设计和制备的二维非晶硼化物复合材料的能量转换。
The preparation of efficient and stable non-noble metal electrocatalysts for the oxygen evolution reaction during the electrolysis of water is extremely significant. Herein, reduced graphene oxide (rGO) supported flower-like Co3Ni1B nanosheets were successfully synthesized via a static precipitation method at room temperature and used as an efficient oxygen evolution reaction (OER) electrocatalyst. This two-dimensional (2D) catalyst has a high specific surface area, which exposes a large number of active sites. The rGO improves the electrical conductivity and promotes fast electron transfer during the OER process. In alkaline medium, the Co3Ni1B-rGO catalyst exhibits superior OER activity with a low overpotential of 318 mV at a current density of 10 mA cm(-2), and stability up to at least 16 hours. This work provides insights into the facile design and preparation of 2D amorphous boride composites for energy transitions.