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Not noble but effective: A novel Ni/NiO/CoSe2 hybrid material has been synthesized as an efficient catalyst for the hydrogen evolution reaction (HER; see picture). This new catalyst has a cathodic onset potential at −0.03 V, a Tafel slope of 39 mV per decade, and represents currently the best Pt-free electrocatalyst for the HER in acidic medium. As a service to our authors and readers, this journal provides supporting information supplied by the authors. Such materials are peer reviewed and may be re-organized for online delivery, but are not copy-edited or typeset. Technical support issues arising from supporting information (other than missing files) should be addressed to the authors. Please note: The publisher is not responsible for the content or functionality of any supporting information supplied by the authors. Any queries (other than missing content) should be directed to the corresponding author for the article.
Xu et al. (Wed,) studied this question.