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      PBA@POM Hybrids as Efficient Electrocatalysts for the Oxygen Evolution Reaction.

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          Abstract

          To realize the effective conversion of renewable energy through water decomposition, efficient electrocatalysts for the oxygen evolution reaction (OER) are essential. In this article, PBA@POM was successfully prepared with a Prussian blue analogue (PBA) as the initial structure. A facile hydrothermal process is reported for obtaining PBA@POM by etching the cubic PBA with a strong Brønsted acid, H3 PMo12 O40 (HPMo). The hollow cube structure not only exposes more active sites but also promotes electron transport, which results in excellent electrocatalytic activity for the OER. Compared with the PBA, which initially simply adhered to POM, the optimum PBA@POM hybrids display remarkably enhanced OER catalytic activity, with an almost constant overpotential of 440 mV at a current density of 10 mA cm-2 and a small Tafel slope (23.45 mV dec-1 ). The facilely prepared PBA@POM with good electrochemical activity and stability promises great potential for the OER.

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          Author and article information

          Journal
          Chem Asian J
          Chemistry, an Asian journal
          Wiley
          1861-471X
          1861-471X
          Aug 16 2019
          : 14
          : 16
          Affiliations
          [1 ] Guangling College, School of Chemistry and Chemical Engineering, Yangzhou University, Yangzhou, 225009, Jiangsu, P. R. China.
          [2 ] Henan Provincial Key Laboratory of Surface&Interface Science, Zhengzhou University of Light Industry, Zhengzhou, 450002, P. R. China.
          Article
          10.1002/asia.201900791
          31246373
          4e926983-f612-49ad-96b3-695828c96309
          © 2019 Wiley-VCH Verlag GmbH & Co. KGaA, Weinheim.
          History

          PBA@POM,electrocatalysis,hollow cube structure,oxygen evolution reaction

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