Graphene supported heterogeneous catalysts for Li–O 2 batteries

Advanced nano-bifunctional electrocatalysts in Li–air batteries for high coulombic efficiency

“…Noble metal modified MnO 2 catalysts are always combined with carbon carriers to enhance dispersion and their catalytic activity in LABs. For example, Alaf et al 89 used KMnO 4 and H 2 PtCl 6 as the Mn and Pt sources to produce a Pt NP modified α-MnO 2 catalyst via direct reduction. Next, a free-standing α-MnO 2 /Pt/graphene-MWCNT catalyst was prepared via vacuum filtration.…”

Bilayer tetragonal AlN nanosheets as potential cathodes for Li–O2 batteries

“…Using porous carbon as a cathode catalyst is an economical strategy. [23][24][25][26][27] However, carbon-based materials are prone to react with O 2 to form epoxy groups in discharges or have unnecessary side effects with electrolytes, causing fatal problems in short-term performance. [28][29][30] Two-dimensional materials have the advantages of a higher specific surface area and higher porosity than bulk materials, as well as easier ion attachment and faster oxygen transfer kinetics.…”

Multi-Sensor Information Fusion for Optimizing Electric Bicycle Routes Using a Swarm Intelligence Algorithm

“…When working on the development of electric vehicles, researchers focus on two clearly defined fields of study. First of all, it is necessary to concentrate on the physical development of the batteries which store electrical energy; one of the solutions we can consider is the introduction of new components, such as graphene [ 3 ] or hydrogen fuel cells [ 4 , 5 ]. A second field of study involves the development of management algorithms and the optimization of vehicle energy consumption at route segments.…”