Development of heterogeneous catalysts for energy conversion has been required to solve environmental issues arising from the combustion fossil fuels. Polymer electrolyte fuel cells (PEFC) are promising power generation devices alternative internal engine. PEFC performance is strongly dependent on catalytic activity oxygen reduction reaction at cathode because sluggish kinetics. Thus, highly ac...

In this study, carbon blacks, containing nitrogen and boron, are used as cathode catalysts first time in a hydrogen-bromine redox flow cell. Nitrogen boron doping has been applied to blacks improve the limited properties of Vulcan XC72 (VXC). Here, we have examined effect nitrogen-/boron-doped black on cell performance. gas boric acid sources post-doping process, respectively. XRD, SEM, XPS, Ra...

Although platinum is commonly used as catalyst on the cathode in microbial electrolysis cells (MEC), non-precious metal alternatives are needed to reduce costs. Cathodes were constructed using a nickel powder (0.5–1 mm) and their performance was compared to conventional electrodes containing Pt (0.002 mm) in MECs and electrochemical tests. The MEC performance in terms of coulombic efficiency, c...

Abstract The overuse of fossil fuels has led to energy shortage and environmental pollution. Therefore, new ways storage conversion are constantly sought. Zinc‐air batteries (ZABs) considered be one the most potential renewable clean sources, because their high density, cost‐effective environmentally friendly advantages. However, due lack stable efficient oxygen electrocatalysts, it is difficul...

An obvious challenge for rechargeable Zn-air batteries (ZABs) is the impact of large charge potentials on oxidation their cathode catalysts, which accelerates corrosion carbon electrodes, and significantly compromises stability. It therefore necessary to design simple methods aimed at facilitating oxygen evolution reaction (OER) processes ZABs suppress materials. Herein, a biomass-derived N-dop...

Platinum deposited on dispersed materials has so far been the most demanded catalyst for creating cathodes a wide range of electrochemical power sources. This paper sets out to investigate effect carbon nanotube (CNT) modification by O, N, and P atoms structural, electrocatalytic, corrosion properties as-synthesized monoplatinum catalysts. The investigated Pt/CNTmod catalysts showed an increase...

Fuel cells can play a crucial role in a future sustainable world; however, these devices are currently based on platinum group metals (PGMs), which is a catalyst group of materials considered as critical raw materials. Furthermore, the oxygen reduction reaction (ORR), which is more than six orders of magnitude slower than the hydrogen oxidation reaction, requires the cathode of polymer electrol...