Fabricating ternary Pt-based alloys has emerged as a promising strategy to further enhance the catalytic performance of Pt catalyst in direct methanol fuel cell (DMFC) for both oxygen reduction reaction (ORR) and methanol oxidation reaction (MOR).Herein we reported for the first time the synthesis of ternary TeCuPt nanowires (NWs) by a Te-template-directed galvanic replacement reaction, in which Te NWs served as both sacrificial templates and reducing agents. Compared with binary TePt alloy and pure Pt catalysts, the ternary TeCuPt alloys exhibited a more positive half-wave potential and higher specific area/mass activity for ORR, and it also displayed a better CO tolerance ability and long-term stability for MOR. The enhanced catalytic performance for TeCuPt NWs was attributed to the electronic and geometric structure effects, originating from the Pt alloying with both Te and Cu components, which could weaken the binding strength between Pt surface atoms and intermediate species (e.g. OH*, CO*). Our studies demonstrated a new alternative ternary Pt-based catalyst

1,10-Phenanthroline–cobalt(ii) metal-complex supported on rGO exhibited a high efficient four-electron catalytic activity towards ORR.

The exploration of non-noble metal catalysts for the oxygen reduction reaction (ORR) is of great significance in energy conversion devices, such as fuel cells and metal-air batteries. In this work, a hybrid catalyst composed of MnO/Ni nanoparticles anchored on porous branched nitrogen-doped carbons (MnO/ Ni@BNCs) were prepared by direct pyrolyzing melamine foams containing Mn(II) and Ni (II) ions at 800 8C under N 2 atmosphere. On the basis of electrochemical tests, it was found that the MnO/Ni@BNCs hybrid catalyst showed a high efficient fourelectron catalytic pathway towards ORR and gave a low yield of H 2 O 2 (< 7.53 %). It also exhibited a good catalytic stability and methanol tolerance, exceeding the commercial Pt/C catalyst. The excellent catalytic performance was attributed to the synergetic effect between high catalytic activity of MnO and high electrical conductivity of Ni. Furthermore, the high surface area and porous structure characters of carbon support, which partially inherited the microstructure of melamine foam, also benefited the electron transfer and reactive species transformation during ORR process.[a] Prof.