MOF assisted synthesis of new porous nickel phosphate nanorods as an advanced electrode material for energy storage application

Crystal exploring, Hirshfeld surface analysis, and properties of 4′‐(furan‐2‐yl)‐2,2′:6′,2″‐terpyridine complexes of nickel (II): New precursors for the synthesis of nanoparticles

“…The XRD pattern of 1a indicates an amorphous phase of Ni 2 P 2 O 7 [ 71 ] while calcination of 1 at 800°C gave 1b whose XRD pattern is in agreement with the formation of Ni 2 P 2 O 7 (ICDD card number: 00‐074‐1604) and NiO (ICDD card number: 98‐005‐9067). [ 71,72 ] The analysis of positions and relative intensities of the diffracted peaks and the presence of single phase monoclinic structure of Ni 2 P 2 O 7 with a space group B21/c and single phase hexagonal structure of NiO with a space group R‐3 m for nano metal oxide 1b were confirmed. The XRD patterns for nanometal oxide 3a are indexed using standard pattern (ICDD card number: 98‐005‐2854 for NiO) and also traces of K 2 SO 4 (ICDD card number: 01‐072‐0354) were observed.…”

Vertically Aligned Metal–Organic Framework Derived from Sacrificial Cobalt Nanowire Template Interconnected with Nickel Foam Supported Selenite Network as an Integrated 3D Electrode for Overall Water Splitting

“…After all, self-templated MOF ensures high porosity and the well-aligned arrangement of the active material provides a 1D structure with adequate exposure and larger active sites. 32 Furthermore, the CV test was performed to evaluate the double-layer (C dl ) capacitance in order to identify the electrochemically active surface area of all prepared catalysts. The CV (Figure S4 in the Supporting Information) at different scan rates of 10−100 mV s −1 is used for a C dl measurement in the non-Faradaic area (1.0−1.25 V vs RHE), which is estimated to be between half the difference in anodic and cathodic current density at 1.150 V vs RHE (Δj = j a − j c ) plotted against the scan rates (Figure S4 In the same way, the electrocatalytic HER activity of MOF CoSeO 3 NWs was also performed by the standard threeelectrode setup at a slow scan rate of 5 mV s −1 in 1 M KOH electrolyte.…”

“…In order to facilitate a high level of catalytic activity, porous catalyst nanostructures could be crucial in ensuring that the active sites are exposed to the electrolyte and the substrate as much as possible. In the above sense, the metal–organic framework (MOF), which is a well-organized crystalline porous material, must be a desirable precursor for higher catalytic activity in the area of a water splitting reaction. , Because of their porosity, large surface area, and tailorable characteristics, MOFs created by bridging metal ions with organic connectors have attracted significant attention. − In the past couple of years, MOFs have also been shown to be a suitable precursor to the synthesis of functional transition metal based nanohybrids, which have very interesting characteristics like cost-effectiveness and efficient electrocatalysts, for water splitting reactions. − Besides, the synthesis of 1D MOF architectures facilitates electrocatalytic efficiency and tries to prevent particle agglomeration. Moreover, the well-organized and closely arranged MOF array improves electrical conductivity, enhances the electrochemically active surface area, fast electron transfer, and structural stability, and facilitates the timely release of H 2 and O 2 gases. − Recently, transition metal dichalcogenides (TMDs) such as metal oxide, sulfide, and selenides have also become highly desirable in a variety of electrochemical energy applications due to their excellent electrochemical performance and availability. , Among all TMDs, selenium based transition materials have been shown to be strong electrode materials for various applications, including supercapacitor, hydrogen evolution reactions, oxygen evolution reactions, and oxygen reduction reactions.…”

Genomic DNA-mediated formation of a porous Cu2(OH)PO4/Co3(PO4)2·8H2O rolling pin shape bifunctional electrocatalyst for water splitting reactions

“…Researchers have prepared and amended different techniques to fabricate excellent catalysts, such as 2D NiCoFe, 1 cobalt phosphates (Co 3 (PO 4 ) 2 ), 2 (Co 5 (PO 4 ) 2 (OH) 4 ), 3 Fe 2 O 3 , 4 CuCo 2 S 4 /g-C 3 N 4 , 5 Co 2 -P@FePO 4 , 6 Au/ZnO, 7 Au/Cu, 8 Co 2 P/Co 2 N, 9 and DNA@Mn 3 (PO 4 ) 2 . 10 Among them, porous nanostructured materials, with high porosity, have exhibited impressive properties in several applications, for example catalysis, 6,[11][12][13][14] separation, 6,15 energy storage materials, [16][17][18] sensors, [19][20][21] and drug delivery. [22][23][24] Numerous synthesis methods, such as hydrothermal, 1 polymerization, 6 co-precipitation, 25,26 electrodeposition, 27,28 and direct calcination methods, 2 were utilized to prepare porous nanostructured materials.…”