Tellurium Triggered Formation of Te/Fe-NiOOH Nanocubes as an Efficient Bifunctional Electrocatalyst for Overall Water Splitting

• DOI: 10.1021/acsami.0c22573
• Publication Date: 2021-02-27T20:58:43Z
• Authors: Shumaila Ibraheem; Xiuting Li; Syed Shoaib Ahmad...; Tayyaba Najam; Ghulam Yasin; Rashid Iqbal; Shahid Hussain; Weiyuan Ding; Farrukh Shahzad
• Keywords: Overpotential; Oxygen evolution; Nanomaterials; Tellurium; Electrolysis of water

The electrocatalyzed oxygen and hydrogen evolution reactions (OER/HER) are the key constituents of water splitting toward production over electrolysis. development stable non-noble nanomaterials as bifunctional OER/HER electrocatalysts is foremost bottleneck to commercial applications. Herein, fabrication Te-modulated FeNiOOH nanocubes (NCs) by a novel tailoring approach reported, doping Te superbly modulated local electronic structures Fe Ni. Te/FeNiOOH-NC catalyst displays better mass electron transfer ability, exposure plentiful edge active centers on surface, structure. Accordingly, as-made reveals robust OER activity (overpotential 0.22 V@10 mA cm–2) HER 0.167 in alkaline media. Considerably, this facilitates high-performance electrolyzer with cell voltage 1.65 V at 10 cm–2. This strategy opens up new way for designing advancing tellurium dopant various