How are non-precious metal catalysts addressing the limitations of precious metal catalysts in electrocatalysis?

Label:chem

Topic
Precious metal catalysts, while efficient, face challenges in industrial-scale application due to scarcity and high costs. Researchers are developing non-precious metal catalysts as sustainable and affordable alternatives.
Answer
Non-precious metal catalysts, such as transition metal oxides, transition metal sulfides, and carbon-supported single-metal systems, offer cost advantages for glycerol and sorbitol electrooxidation. The novel MoS2/NiO/RGO heterostructure, for example, addresses limitations like insufficient current densities, rapid deactivation, poor electrical conductivity, and unstable active sites. It integrates conductive RGO with defect-rich MoS2 to create efficient charge transfer pathways, enhancing current densities. Its porous architecture maximizes active site exposure, leading to highly efficient and stable electrooxidation of glycerol and sorbitol without noble metals.
Return to Home Chemical List
Knowledge you may be interested in
What is the role of reduced graphene oxide (RGO) in enhancing catalytic performance? Why are glycerol and sorbitol considered promising alternative fuels for fuel cells? What is the nature of glycerol adsorption on the K₂O (110) surface, and how does it impact the surface? How effective are the silver nanoparticles synthesized in glycerol as antibacterial agents against E. coli and S. aureus? What are the roles of PVP and NaOH in the polyol synthesis of silver nanoparticles in glycerol? What are the characteristics of the silver nanoparticles synthesized using glycerol? How does the selective hydrogenation of 4-nitrophenol to 4-aminophenol proceed when catalyzed by silver nanoparticles? What are the multiple applications of silver nanoparticles synthesized in glycerol? What is the multipurpose nature of glycerol in the synthesis of silver nanoparticles? Why is glucose a favored carbon source in E. coli culture? Why is methylene blue a significant environmental concern in water pollution? Why is Cadmium sulfide (CdS) of interest for the production of photocatalysts? What environmental and health concerns are associated with dye contaminants in wastewater, and why is methylene blue a particular focus in remediation efforts? Why is acetone detection important in human breath? What molecular models were employed for acetone and carbon dioxide in the molecular dynamics (MD) simulations? What are the key pure component parameters for acetone and carbon dioxide in the PCP-SAFT equation of state combined with Density Gradient Theory (DGT)? Why is acetone challenging to detect in breath? What is the sensing mechanism of acetone on In2O3? Why has xanthine-based research not progressed rapidly, resulting in a limited number of synthesized xanthine-based molecules, despite its broad pharmaceutical applications and belongingness to the purine family? Why is the identification and quantification of xanthine important?