Nickel sulphide decorated nitrogen rich ordered mesoporous carbon (NOMC) as an efficient catalyst for the electrocatalytic oxidation of urea in alkaline medium

A nano-structured nickel trithiocarbonate complex supported on g-C3N4 as an efficient electrocatalyst for urea electro-oxidation

“…Two peaks are observed around 871 and 853 eV, which are assigned to Ni 2p 3/2 and 2p 1/2 of Ni 2+ states, respectively. 54,68 The other two peaks (879 eV and 861 eV) are the satellite peaks of Ni 2+ . Two distinct peaks at 164 and 162 eV related to S 2p 1/2 and S 2p 3/2 , respectively, are observed in the S 2p (Fig.…”

“…This mechanochemical method is a rapid, solvent-free facile way to fabricate nano-composites. 54,65,66…”

“…Recent reports reveal that the immobilization of Ni-based catalysts on carbon surfaces can augment the efficiency of the UOR due to the synergetic effect. 14,35,[50][51][52][53][54] Graphitic carbon nitride (g-C 3 N 4 ) has emerged as a potential non-toxic photocatalyst due to its easy synthesis method and low cost, [55][56][57] which is widely used for organic transformation, photo-electrochemical water splitting, etc. [58][59][60][61][62][63] The heptazine units and other amine groups in g-C 3 N 4 offer excellent coordination sites for Ni(II).…”

“…The Ni 2p spectrum of Ni-ttc and Ni-ttc-d (Figures2a and 2b) exhibits four peaks. Two peaks are observed around 871 and 853 eV, which are assigned to Ni 2p 3/2 and 2p 1/2 of Ni 2+ states, respectively 54,68. The other two peaks (879 eV and 861 eV) are the satellite peaks of Ni 2+ .…”

“…The Ni-ttc-d/g-C 3 N 4 composites were prepared by grinding Ni-ttc-d and g-C 3 N 4 in the requisite quantity in a mortar with a pestle. This mechanochemical method is a rapid, solvent-free facile way to fabricate nanocomposites 54,65,66. The X-ray diffraction patterns (XRD) of Ni-ttc and Ni-ttc-d are shown in Fig.1a and b. Ni-ttc displayed six well-defined diffraction peaks at 28.3, 40.5, 50.2, 58.7, 66.4, 67.4, and 73.71.…”