Greenly Synthesized Conducting Polymer Nanotunnels with Metal-Hydroxide Nanobundles in Single Dais for Unmitigated Water Oxidation.

Electrochemical water splitting required efficient electrocatalysts to produce clean hydrogen fuel. Here, we adopted greenway coprecipitation (GC) method to synthesize conducting polymer (CP) nanotunnel network affixed with luminal-abluminal CoNi hydroxides (GC-CoNiCP), namely, GC-CoNiCP, GC-CoNiCP, and GC-CoNiCP. The active catalyst, GC-CoNiCP/GC, has low oxygen evolution reaction (OER) overpotential (307 mV) and a smaller Tafel slope (47 mV dec) than IrO (125 mV dec).

Greenly Synthesized CoPBA@PANI as a Proficient Electrocatalyst for Oxygen Evolution Reaction and Its Green Sustainability Assessments.

Water electrolysis is a key factor to generate mobile and sustainable energy sources for H production. Cobalt-based Prussian Blue analogues encompassed with polymer support electrocatalysts CoPBA@PANI (CoPBA@PANI-100, CoPBA@PANI-200, and CoPBA@PANI-300) have been synthesized and characterized. The well-designed CoPBA@PANI-200/GC shows a low overpotential (η) of 301 mV with a small Tafel slope (56 mV dec), comapred to that of IrO (348 mV ; 98 mV dec) for OER.