Synthesis and characterization the multifunctional nanostructures TixW1-xO2 (x = 0.5; 0.6; 0.7; 0.8) supports as robust non-carbon support for Pt nanoparticles for direct ethanol fuel cells

Platinum–Copper Bimetallic Nanodendritic Electrocatalyst on a TiO2-Based Support for Methanol Oxidation in Alkaline Fuel Cells

“…Direct methanol fuel cells have sparked considerable interest as a potential clean energy technology for portable electronic devices and transportation because of their great efficiency, low emissions, and easy storage and transport. , In contrast to acid fuel cells, direct methanol alkaline fuel cells (DMAFCs) had greater performance, low price, and less corrosive operation conditions. , In addition, in an alkaline environment, the reaction kinetics of oxidation and reduction were significantly enhanced due to the facilitated formation of hydroxyl groups (OH – ) on the surface of the electrocatalyst, suppressing the poisoning effect by producing intermediate species during the methanol oxidation reaction (MOR). , Until now, a carbon nanosupport has been utilized widely for Pt-based nanocatalysts in fuel-cell technologies; however, the weak interplay of them with the metal catalyst caused the poor stability and easy CO-like poisoning effect that resulted in the fast and continuous decay of the electrocatalyst during long-term operations. , To address this problem, in our previous studies, W-doped TiO 2 nanomaterials with different Ti/W ratios were prepared and the effect of W content on the Pt catalytic performance of the oxidation of alcohol was investigated. As a result, Pt nanoparticles (NPs) loaded on the Ti 0.7 W 0.3 O 2 support had the highest mass activity and CO-tolerance compared with other different Ti/W ratios and superior to the C-supported Pt (NPs) catalyst.…”

Synthesis and characterization of Ti0.9Ir0.1O2-activated carbon composite as a promising support for catalysts in electrochemical energy conversion

“…In terms of electrocatalyst support, the specific surface area and electrical conductivity are considered prerequisites for enhancing the catalytic performance of catalysts [8,31]. The surface area of the Ti 0.9 Ir 0.1 O 2 , Ti 0.9 Ir 0.1 O 2 -Activated C (75:25 wt%), Ti 0.9 Ir 0.1 O 2 -Activated C (50:50 wt%), and Ti 0.9 Ir 0.1 O 2 -Activated C (25:75 wt%) and Activated C was 87.35, 105.41, 152.12, and 176.52, and 221.15 m 2 g −1 respectively, indicating that all as-made composites exhibited the improved surface area compared to carbon-free mixed oxide.…”

“…Owing to the energy crisis and fuel fossil-related environmental issues, designing sustainable energy-related conversion technologies is crucial for developing human society [1][2][3][4]. In terms of electrochemical energy conversion systems, the overall efficiency is strongly dependent on various electrocatalytic reactions, being usually catalysed by platinum-group metals loaded carbon nanomaterials [5][6][7][8]. Aside from platinum-group metals, the catalytic support also plays an important role in enhancing the electrocatalytic performance that not only hosts the metal catalysts but also promotes electron/mass transfer and catalytic stability via a strong metal-support interaction (SMSI) [9][10][11].…”

New and Ultra‐Rapid Approach for Electrosynthesis of Highly Efficient Catalysts of Poly(para‐phenylenediamine) Supported Copper Oxide for Ethanol Oxidation in Alkaline Medium

“…[17][18][19] As mentioned in the literature, the EOR in the alkaline media takes place either via two pathways called C1 and C2. [20,21] In the C1 pathway, the breaking of the CÀ C bond of ethanol takes place leading to the formation of CO 2 . This route is generally the most desired one since the total oxidation of ethanol releases 12 electrons.…”