High-performance non-enzymatic glucose sensor by hierarchical flower-like nickel(II)-based MOF/carbon nanotubes composite

General synthesis of hierarchical sheet/plate-like M-BDC (M = Cu, Mn, Ni, and Zr) metal–organic frameworks for electrochemical non-enzymatic glucose sensing

“…Table 1 compares the electrochemical glucose sensing performance of various non-enzymatic catalysts with the as-prepared hierarchical sheet-like Ni-BDC sensor. 58–68 It can be observed from Table 1 that the hierarchical sheet-like Ni-BDC electrode shows higher sensitivity than non-enzymatic glucose sensors based on Ni(OH) 2 /Au, 60 Ni(OH) 2 nanoparticles/reduced graphene oxide (RGO), 61 GO x / p -NiO/ n -Bi 4 Ti 3 O 12 , 66 NiCo layered double hydroxide (LDH) nanosheets/graphene nanoribbons, 67 and even some noble metal composites, such as Pt@carbon nano-onions, 64 Ni–Pd@activated carbon, 65 and PtPd/porous holey nitrogen-doped graphene. 68 Zhang et al 33 previously compared the glucose sensing performance of bulk Ni-BDC with that of Ni-BDC/carbon nanotube (CNT) hybrid.…”

“…In comparison, the as-synthesized hierarchical sheet-like Ni-BDC sensor shows a higher sensitivity to glucose than this Ni-BDC/CNT hybrid even without the addition of carbon-based materials or the use of conductive nickel foam. Furthermore, compared with hierarchical flower-like Ni-BDC-SWCNT (single-wall carbon nanotubes)/GCE, 58 our hierarchical sheet-like Ni-BDC sensor exhibits superior sensitivity to glucose even without the addition of SWCNT. This indicates that the catalytic activity of Ni-BDC may be enhanced by tuning the morphology to a hierarchical 3D structure composed of 2D nanoarchitectures.…”

Nanomaterials for Healthcare Biosensing Applications

“…Inorganic nanomaterials may possess different anisotropies, such as triangular, spherical, and nanohole [133]. They appear in different forms, such as bimetallic alloys, core-shell structures, metal organic framework (MOFs), nanotube, and nanowire arrays [56,67,71]. Each of these nanomaterials is capable of enhancing the biocompatibility and transduction characteristics of biosensors with the help of appealing interface and surface features.…”

Enhanced electrochemical performances of activated carbon (AC)-nickel-metal organic framework (SIFSIX-3-Ni) composite and ion-gel electrolyte based supercapacitor

“…The first is the electrochemical double-layer capacitor (EDLC), which is worked by the electric double layer that is formed at the electrode/electrolyte surface [7,8]. As the electrode material for EDLC, carbon materials with a large surface area, such as graphene, activated carbon, and carbon nanotubes, are mainly conducted [1,[9][10][11][12]. The second type is a pseudocapacitor, where electric charges are stored by the faradaic reaction.…”