In-situ construction of Co/CoSe Schottky heterojunction with interfacial electron redistribution to facilitate oxygen electrocatalysis bifunctionality for zinc-air batteries

Construction of a Co/MnO Mott–Schottky Heterostructure to Achieve Interfacial Synergy in the Oxygen Reduction Reaction for Aluminum–Air Batteries

“…The synergy between different phases is not achieved in p-CMNC in spite of similar composition to CMNC-1 due to the lack of a heterointerface between Co and MnO phases. 47,48 When varying the ratio of cobalt salt to manganese salt in the precursor, the CMNC samples show different ORR catalytic performance, and the CMNC-1 shows the highest activity among them. Moreover, the E onset and E 1/2 of other ORR electrocatalysts compared with reported Co-based and other Mott−Schottky heterostructures are listed in Table S3 for comparison.…”

A metal/semiconductor contact induced Mott–Schottky junction for enhancing the electrocatalytic activity of water-splitting catalysts

“…Li and co-workers constructed a Co/CoSe Mott-Schottky junction encapsulated in N-doped carbon by an in situ partial reduction strategy. 106 The in situ partial reduction of CoSe to Co ensured a close contact interface between metallic Co and semiconductive CoSe, which was directly visualized by the HRTEM image and corresponding FFT patterns (Fig. 9f).…”

“…Other transition metal based semiconductors, such as transition metal nitrides, phosphides, chalcogenides and pyrophosphate, were also explored as a matrix to construct a Mott-Schottky junction as well. [104][105][106][107][108] Liang and co-workers prepared Co 2 P 2 O 7 @N,P-C nanocages by a ligand exchange reaction and subsequent pyrolysis process (Fig. 9a-e).…”

2D Metal–organic framework derived Co/CoSe2 heterojunctions with interfacial electron redistribution as bifunctional electrocatalysts for urea-assisted rechargeable Zn–air batteries

“…27 Additionally, the M-S heterojunction can improve the kinetics of the ORR with electron gain and the UOR with electron loss due to the simultaneous formation of electron-rich and hole-rich regions in the M-S heterojunction. 28 As a result, the design and the fabrication of cobalt-based selenides with M-S heterojunctions has a promising future in urea-assisted rechargeable ZABs.…”