{Reference Type}: Journal Article {Title}: Metal–organic framework derived CoSe2 nanoparticles anchored on carbon fibers as bifunctional electrocatalysts for efficient overall water splitting {Author}: Sun, Chencheng; Dong, Qiuchun; Yang, Jun; Dai, Ziyang; Lin, Jianjian; Chen, Peng; Huang, Wei; Xiaochen, Dong {Journal}: Nano Research {ISBN/ISSN}: 1998-0124 {Year}: 2016 {Volume}: 9 {Issue}: 8 {Pages}: 2234-2243 {DOI}: 10.1007/s12274-016-1110-1 {Keywords}: electrocatalyst {Keywords}: overall water splitting {Keywords}: metal–organic framework {Keywords}: cobalt selenide {Abstract}: The development of efficient, low-cost, stable, non-noble-metal electrocatalysts for water splitting, particularly those that can catalyze both the hydrogen evolution reaction (HER) at the cathode and oxygen evolution reaction (OER) at the anode, is a challenge. We have developed a facile method for synthesizing CoSe2 nanoparticles uniformly anchored on carbon fiber paper (CoSe2/CF) via pyrolysis and selenization of in situ grown zeolitic imidazolate framework-67 (ZIF-67). CoSe2/CF shows high and stable catalytic activity in both the HER and OER in alkaline solution. At a low cell potential, i.e., 1.63 V, a water electrolyzer equipped with two CoSe2/CF electrodes gave a water-splitting current of 10 mA·cm-2. At a current of 20 mA·cm-2, it can operate without degradation for 30 h. This study not only offers a cost-effective solution for water splitting but also provides a new strategy for developing various catalytic nanostructures by changing the metal–organic framework precursors. {URL}: https://www.sciopen.com/article/10.1007/s12274-016-1110-1 {Language}: en