Platinum–palladium-on-reduced graphene oxide as bifunctional electrocatalysts for highly active and stable hydrogen evolution and methanol oxidation reaction

Abstract

In the context of gradual depletion of global fossil fuel resources, it is increasingly necessary for exploring a new alternative energy. Hydrogen energy has attracted great interest from the researchers...

Breaking the activity and stability bottlenecks for acid hydrogen evolution by strong metal–support interaction between Pt nanoparticles and amorphous MoOx

“…A broad diffraction peak at 2 θ about 25.4° is assigned to graphite carbon (002). 8 There is no correlative peak of Mo oxides can be observed, indicating that MoO x exists in amorphous state. The three characteristic diffraction peaks of Pt–MoO x /C and commercial 20 wt% Pt/C at 2 θ = 39.76°, 46.24° and 67.45° are assigned to Pt (111), (200) and (220) (fcc, Pt-PDF#04-0802), respectively.…”

“…7 Commercial Pt/C is the benchmark electrocatalyst for HER. 8,9 However, the weak interaction between Pt nanoparticles and carbon support leads to the migration and aggregation of Pt nanoparticles during long-term operation, which is responsible for the poor stability of commercial Pt/C electrocatalyst. 9,10 The high loading of noble metal Pt also rises the cost of this electrocatalyst.…”

Advancements in water splitting for sustainable energy generation: A review

“…Researchers have been exploring the synthesis of nanostructured and well-defined metal oxide catalysts to enhance their surface area and expose more active sites. Mixed metal oxides, combining different elements, can exhibit improved OER activity and stability compared to single-metal oxides [85][86][87] (Table 1).…”