Covalent immobilization of ruthenium polypyridyl complex on multi-walled carbon nanotube supports for oxygen evolution reaction in an alkaline solution

Polyoxometalate-based composite cluster with core–shell structure: Co4(PW9)2@graphdiyne as stable electrocatalyst for oxygen evolution and its mechanism research

“…Turnover frequency (TOF) is considered an important indicator to evaluate and compare the intrinsic catalytic performance among different electrocatalysts. 40,41 Fig. 6d shows the changes of TOF value along with the overpotential from 300 mV to 400 mV, which was calculated by the method of integrating the redox peaks of catalytically active substances; 42,43 the expression is shown in eqn (S3) (ESI †).…”

Covalent Linking of the Porphyrin Light Harvester to the Multiwalled-Carbon-Nanotube-Based Polypyridineruthenium(II) Complex for Boosting the Electrocatalytic Oxygen Evolution Reaction

“…DPV was carried out in a deaerated dichloromethane/acetonitrile mixture (3:1, v/v) by using tetrabutylammonium hexafluorophosphate ( n -Bu 4 NPF 6 , 0.10 M) as the supporting electrolyte. The working electrodes were prepared according to our previous work …”

“…Covalently grafting the complex OER catalyst to the carbon material can effectively prevent the aggregation of catalyst molecules and improve the electrical connection between the two moieties, resulting in improved charge separation efficiency and accelerated electron transfer. Accordingly, the catalytic activity and physical stability will be enhanced. − This incorporation strategy not only can shorten the electron diffusion distance but also can enhance the effective surface area for guest adsorption by forming a mesoporous structure and increasing the exposed catalytic sites. Thereby, the catalytic performance was further improved.…”

An electrochemical sensor based on [Ru(bpy)2dpp]2+/SMWCNTs/Au modified glassy carbon electrode for the detection of 5ʹ-GMP

“…[Ru(bpy) 2 dpp]Cl 2 are excellent mediators for catalytic oxidation of guanine. 5ʹ-GMP oxidation is related to the sensitive substance and catalytically active compound of the modified electrode, and SMWCNTs can be effectively oxidized in the presence of polypyridyl ruthenium (II) complexes [14][15][16][17].…”