Chemical Synthesis and Pollution Control Key Laboratory of Sichuan Province, College of Chemistry and Chemical Engineering, China West Normal University , Nanchong 637002, P.R. China.
ACS Appl Mater Interfaces. 2017 Mar 1;9(8):7193-7201. doi: 10.1021/acsami.6b16534. Epub 2017 Feb 13.
Efficient and cost-effective oxygen evolution reaction (OER) electrocatalysts are closely associated with many important energy conversion technologies. Herein, we first report an oxygen-evolving cobalt-citrate metal-organic framework (MOF, UTSA-16) for highly efficient electrocatalytic water oxidation. Benefiting from synergistic cooperation of intrinsic open porous structure, in situ formed high valent cobalt species, and existing CoO cubane, the UTSA-16 exhibits excellent activity toward OER catalysis in alkaline medium. The UTSA-16 needs only 408 mV to offer a current density of 10 mA cm for OER catalysis, which is superior to that of most MOF-based electrocatalysts and the standard CoO counterpart. The present finding provides a better understanding of electroactive MOFs for water oxidation.
高效且经济的氧析出反应 (OER) 电催化剂与许多重要的能量转换技术密切相关。在此，我们首次报道了一种用于高效电催化水氧化的氧析出钴柠檬酸盐金属有机骨架 (MOF，UTSA-16)。得益于固有开放多孔结构、原位形成的高价钴物种以及存在的 CoO 立方烷之间的协同合作，UTSA-16 在碱性介质中对 OER 催化表现出优异的活性。UTSA-16 仅需 408 mV 即可提供 10 mA cm 的 OER 催化电流密度，优于大多数基于 MOF 的电催化剂和标准 CoO 对应物。本研究结果为水氧化的电活性 MOF 提供了更好的理解。
