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Synthesis of a Hierarchically Porous C/Co3 O4 Nanostructure with Boron Doping for Oxygen Evolution Reaction.
Chemistry - An Asian Journal ( IF 3.5 ) Pub Date : 2020-01-05 , DOI: 10.1002/asia.201901684
Lianli Zou 1, 2 , Qiang Xu 1, 2
Affiliation  

Fabricating a low-cost and highly efficient electrocatalyst is of importance for the development of renewable energy devices. In this work, we have synthesized an ultrafine cobalt oxide nanocatalyst (5-10 nm) doped with boron (BC/Co3 O4 ) by using a metal-organic framework as a precursor, which exhibits an excellent catalytic activity for oxygen evolution reaction (OER). Owing to the improvement of accessible active sites by boron doping, the synthesized catalyst can reach a current density of 10 mA cm-2 at 1.54 V with a low overpotential of 310 mV, superior than those of commercial RuO2 and N-doped C/Co3 O4 . This work provides a facile way to develop highly efficient catalysts for electrochemical reactions.

中文翻译:

硼掺杂用于氧释放反应的多层多孔C / Co3 O4纳米结构的合成。

制造低成本和高效的电催化剂对于可再生能源设备的开发很重要。在这项工作中,我们以金属有机骨架为前驱体,合成了掺有硼(BC / Co3 O4)的超细钴氧化物纳米催化剂(5-10 nm),该催化剂对氧析出反应(OER)具有出色的催化活性。 )。由于通过硼掺杂改善了可及的活性位点,因此合成的催化剂在1.54 V的电流密度下可达到10 mA cm-2的电流密度,具有310 mV的低过电势,优于商用RuO2和N掺杂的C / Co3 O4。这项工作为开发用于电化学反应的高效催化剂提供了一种简便的方法。
更新日期:2020-01-23
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