中文摘要：

钴 phosphate-/cobalt 基于硼酸盐的演变氧的催化剂(OEC ) 是能为在良性的条件下面切开的水与高活动操作的地球丰富的 electrocatalysts 的重要的班。这篇文章报导钴磷酸盐(Co-Pi ) 和钴硼酸盐(合作双性人) OEC 的集成与三维(3D ) 为 electrocatalytic 水氧化反应的 graphene 泡沫(GF ) 。GF 显示了一个唯一的优点为抛锚并且由于 3D graphene 支架提供的大量活跃地点装载 Co-OECs，从而便于的质量和充电转移与大能力用作高度传导性的 3D 支持。作为结果， GF 和 Co-OECs 展览的这个综合系统 synergistically 提高了催化活动。过电位() Co-Pi 和 Co-Bi/graphene 催化剂是大约 0.390 并且在中立答案的 0.315V 分别地。而且，综合 Co-OECs/graphene 催化剂也展出了改善并且稳定的氧进化在碱的答案的催化能力。

英文摘要：

The cobalt phosphate-/cobalt borate-based oxygen-evolving catalysts （OECs） are the important class of earth-abundant electrocatalysts that can operate with high activity for water splitting under benign conditions. This article reports the integration of cobalt phosphate （Co- Pi） and cobalt borate （Co-Bi） OECs with three-dimensional （3D） graphene foam （GF） for the electrocatalytic water oxidation reaction. The GF showed a unique advantage to serve as a highly conductive 3D support with large capacity for anchoring and loading Co-OECs, thereby facilitating mass and charge transfer due to the large amount of active sites provided by the 3D graphene scaffold. As a result, this integrated system of GF and Co-OECs exhibits synergistically enhanced catalytic activity. The overpotential （η） of Co-Pi and Co-Bi/graphene catalysts is about 0.390 and 0.315 V in neutral solutions, respectively. Besides, the integrated Co-OECs/graphene catalysts have also exhibited improved and stable oxygen evolution catalytic ability in alkaline solution.