Comparative study of aliphatic alcohols electrooxidation on zero-valent palladium complex for direct alcohol fuel cells

Recent Advances on Electro-Oxidation of Ethanol on Pt- and Pd-Based Catalysts: From Reaction Mechanisms to Catalytic Materials

“…The product distribution and the dominant reaction pathway depend on many factors including temperature, catalyst material and structure, applied potential, ethanol concentration, reaction media, etc. [20,[30][31][32]37,[45][46][47]. The interplay of these factors affects EOR greatly.…”

“…The interplay of these factors affects EOR greatly. Typically, the adsorption of hydroxyl is vital in both acidic and alkaline media [18,39,40,[45][46][47]. In acidic media, at low potentials C-C bond cleavage occurs readily to form CO [30,43].…”

“…Nevertheless, a so-called dual-pathway (C1 and C2) mechanism has been largely agreed upon: the C1 pathway proceeds via adsorbed carbon monoxide (COads) intermediate to form CO2 (or carbonate in alkaline solutions) by delivering 12 electrons, and the C2 pathway mainly leads to the formation of acetic acid (or acetate in alkaline solutions) by delivering four electrons and/or acetaldehyde by delivering two electrons. Though a higher electro-efficiency can be achieved by the C1 pathway, the C2 pathway is generally dominant in the overall EOR [46][47][48][49]. Therefore selectively enhancing the C1 pathway by rational design of high performance catalysts is an effective way to increase the DEFC efficiency.…”

Development of ternary hexafluoroisopropylidenedianiline/cyclophosphazene/benzidine- disulfonic acid-carbon nanotubes (HFPA/CP/BZD-CNT) composite as a catalyst support for high performance alcohol fuel cell applications

“…Compared to H2 fuel cells, alkaline direct alcohol fuel cells (ADAFCs) have been fascinated enormous attention because of their simple production method, storage and transportation, inflammable, non-toxicity and possibility of production from renewable biomass resources [1,2]. In credit, the energy competence and volumetric energy density of ethylene glycol (5.79 kWh L -1 ) are higher than the hydrogen gaseous fuel (0.53 kWh L -1 ) [3,4]. Further, ADAFCs showed improved kinetics on oxidation of alcohols and low crossover with a wide range of catalytic materials [5,6].…”

Investigation on ethanol electrooxidation via electrodeposited Pd–Co nanostructures supported on graphene oxide

“…Furthermore, Pt cannot be used for large-scale applications and alternative materials are needed [8,9]. Compared to Pt, Pd based electrocatalysts show high electroactivity and stability for oxidation of ethanol in alkaline media, so they could be suitable replacement of Pt [10,11].…”