Platinum‐Based Electrocatalysts for Direct Alcohol Fuel Cells: Enhanced Performances toward Alcohol Oxidation Reactions

Abstract

Figure 2. a) Average size of Pt nanoparticles prepared under different pH values. [51] b) SA and MA values of commercial Pt/C and Pt nanoparticles with various sizes toward EGOR. [51] Reproduced from Ref. [51] with permission. Copyright (2020) Elsevier. c) Size distribution of Pt cluster treated at different temperatures. [52] d) CV curves for MOR of a monolayer single Pt atoms on the thiolated multiwalled carbon nanotube (PtÀ S-MWNT), Pt clusters on multiwalled carbon nanotubes with eliminated thiol at different temperature

High‐entropy alloys and compounds for electrocatalytic energy conversion applications

“…Direct alcohol fuel cells (DAFCs) are one of the most promising power sources that can enable a continuous supply of electricity with high‐efficiency and low‐pollution emissions through electrochemical redox reactions 150,151 . Compared with the hydrogen‐fed fuel cells, DAFCs that utilize liquid fuels are a simplified fuel system without the problem of hydrogen storage 152 .…”

Solid state synthesis of a RuNiO3 perovskite nanomaterial as an electro-catalyst for direct alcohol (ethanol, methanol and ethylene glycol) fuel cell applications

“…DAFCs are typically environmentally friendly with high efficiency and recyclability owing to the high mass energy density, minimal pollution, costeffectiveness, fast oxidation kinetics, stability and sustainability of the fuels used. 2,3 A wide range of noble materials and their composites have been reported as electrocatalysts for DAFC applications. 4,5 Though these electrocatalysts exhibit high mass activity, they suffer from low cycling stability due to the CO intermediate poisoning at the electrode surface during the redox reaction.…”

Modification of multi-walled carbon nanotubes with platinum–osmium to develop stable catalysts for direct methanol fuel cells

“…23 The main purpose of these studies is to reduce the use of Pt, increase performance and create catalysts with high CO tolerance without sacrificing the fuel cell performance. 24,25 One of the strategies used to change the structure of Pt-based catalysts is the creation of bimetallic and trimetallic structures by adding different metals to the Pt crystal structure or by using carbon-like support materials. In this study, one of the least studied precious metals, namely Os metal, has been used.…”