Addition of iron oxide to Pt-based catalyst to enhance the catalytic activity of ethanol electrooxidation

Pt/TiSix-NCNT Novel Janus Nanostructure: A New Type of High-Performance Electrocatalyst

“…Previous studies have demonstrated that using metal oxide nanostructures as Pt catalyst supports could increase the CO tolerance of the Pt. This is because, according to a so-called bifunctional mechanism, metal oxide could provide oxygen containing (e.g., −OH) groups which help in removing the strongly absorbed species such as CO. − Thus, the much improved CO tolerance of the Pt/TiSi x -NCNT Janus nanostructure may originate from the TiSi x coating, which could provide oxygen-containing (e.g. −OH) groups on the catalyst surface.…”

Carbon Nanotube PtSn Nanoparticles for Enhanced Complete Biocatalytic Oxidation of Ethylene Glycol in Biofuel Cells

“…Pt 75 Sn 25 /MWCNTs (Pt:Sn molar ratio) were prepared by the microwave-assisted method as described previously. , Briefly, 50 mg of the resulting material was obtained by adding 30 mL of propylene glycol (as a solvent and reduce agent), 1.14 mL of SnCl 2 (0.025 mol L –1 ), 1.11 mL of H 2 PtCl 6 ·6H 2 O (0.077 mol L –1 ), and 46.6 mg of sodium acetate to a 250 mL beaker under vigorous stirring for 5 min in an ultrasonic bath. Once the solution was dissolved and well mixed, 30 mg of MWCNTs, previously functionalized by refluxing 1.0 g of MWCNTs with 65% (w/w) HNO 3 at 90 °C for 5 h, was added to the solution to achieve a final catalytic material with 40% wt metal loading.…”

PtRu, PtRuFe and PtRuNi alloy electrocatalysts decorated on composite support C-MWCNTs for direct methanol fuel cells

“…Trong số các nguồn năng lượng mới đang được phát triển, pin nhiên liệu là một trong những nguồn năng lượng đầy hứa hẹn. So với động cơ đốt trong, pin nhiên liệu thân thiện với môi trường, bền, giảm tiếng ồn, … [1] Trong số các loại pin nhiên liệu, pin nhiên liệu methanol (DMFC) ngoài lợi thế thân thiện với môi trường còn có mật độ năng lượng cao, hoạt động ở nhiệt độ thấp nên dễ dàng ứng dụng trong các thiết bị di động hoặc cầm tay [2,3]. Tuy nhiên, cho đến nay, việc thương mại hóa DMFC còn gặp một số khó khăn [4,5,6].…”