Electrocatalytic oxygen reduction with cobalt corroles bearing cationic substituents

Abstract

Recent decades have seen an increasing interest for developing highly active and selective electrocatalysts for the oxygen reduction reaction (ORR). The active site environment of cytochrome c oxidases (CcOs), including...

Identification of a Durability Descriptor for Molecular Oxygen Reduction Reaction Catalysts

“…The difference between the o -COOH and the CF 3 - and p -corroles is likely due to the presence of the COOH substituent close to the active site that can provide steric effects as well as interactions with the adsorbates and/or solvent molecules at the active site. Such interactions have been noted to affect the selectivity and durability of molecular catalysts in previous experimental studies. ,,− …”

“…Proton-exchange membrane fuel cells (PEMFCs) are a key enabling technology for the transition to the hydrogen economy and have attracted long-standing research interest due to the global concern about climate change. − The practical use of PEMFCs is hampered by the scarcity of Pt necessary to catalyze the sluggish oxygen reduction reaction (ORR) at the cathode in the current state-of-the-art PEMFCs. This has motivated intense research of the development of ORR catalysts based on abundant transition metals. − Among such platinum-group-metal-free (PGM-free) catalysts, molecular catalysts are an advantageous model system due to the precise control of their structure and active site chemistry that enables the elucidation of the composition–structure–property relations necessary to guide the rational design of new catalysts. − …”

A review on diverse streams of interface engineering for organic thin-film transistors

“…It is worth noting that the recent years have witnessed remarkable achievements in the electrical performance of OTFTs (Table 1). [9][10][11][12][13][14][15][16][17][18][19][20][21][22][23][24][25] Interface engineering has been a vital approach in the quest to modulate and/or improve the characteristics of various organic electronic devices, including OTFTs, organic light-emitting diodes (OLEDs), and organic photovoltaics (OPVs). [26][27][28][29][30][31][32][33][34][35] Interface engineering in OTFTs often focuses on controlling and manipulating the electrical characteristics related to the switching function, while in OLEDs and OPVs, one of the key aspects of interface engineering is maximizing energy conversion for light emission and electricity generation, respectively.…”

High power density output and durability of microbial fuel cells enabled by dispersed cobalt nanoparticles on nitrogen-doped carbon as the cathode electrocatalyst

“…Compared with other electrochemical energy conversion devices, 1,2 microbial fuel cells (MFCs) have attracted considerable interest because of their ability to convert organic wastes into electrical energy. 3,4 Many challenges should be addressed before MFCs can be applied on a large scale, especially the sluggish cathode and anode kinetics. [5][6][7] Like other fuel cells, 8,9 the most concerning issue of MFCs is the high cost of the cathode platinum (Pt) electrocatalyst that exhibits high activity towards the cathode oxygen reduction reaction (ORR).…”