Nanosheets-assembled hierarchical microstructured Ni(OH)2 hollow spheres for highly sensitive enzyme-free glucose sensors

Pan, Lu; Liu, Qibin; Xiong, Yuzhu; Wang, Qing; Lei, Yuting; Lu, Shengjun; Lu, Liwei; Yao, Li

doi:10.1016/j.electacta.2015.04.003

Cited by 69 publications

(23 citation statements)

References 47 publications

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“…As shown in Figure c, the O 1s spectrum of PSAA/Ni(OH) 2 ‐CSs is divided into three peaks (Figure c inset), which correspond to the oxygen atoms in different functional groups: OH − (531.1 eV), C=O (531.9 eV) and C−O (533.2 eV). For Ni(OH) 2 ‐HSs and Ni(OH) 2 ‐B, the O 1s peak at 531.1 eV (Figure c) corresponds to the OH − and the C 1s peak at 284.7 eV (Figure d) originates from the carbon sample holder. For PSAA/Ni(OH) 2 ‐CSs, the main peak at 284.7 eV can be assigned to carbon atoms of CH 2 −CH and aryl benzene ring other than carbon sample holder, a weaker peak at 289.8 eV is attributed to the carbon atoms of O−C=O.…”

Section: Resultsmentioning

confidence: 99%

“…It is well known that the pseudocapacitance behavior and performance of an electroactive material are related to its surface area, pore size, pore volume and surface morphology, etc . To date, Ni(OH) 2 with various morphologies have been prepared, such as porous nanotubes, thin films, nanoboxes, hollow spheres, flower‐like microspheres and nanospheres. The Ni(OH) 2 electrode materials with different morphologies had different pseudocapacitive performances because the morphology of electroactive materials can affect the transport of ion and the wetting of electrolyte.…”

Section: Introductionmentioning

confidence: 99%

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Fabrication of Amorphous Mesoporous Ni(OH)₂ Hollow Spheres with Waxberry‐Like Morphology for Supercapacitor Electrodes

et al. 2017

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The amorphous mesoporous Ni(OH)2 hollow spheres (Ni(OH)2‐HSs) with waxberry‐like morphology were fabricated by using a facile hydrothermal method with poly(styrene‐acrylic acid) spheres as the template, followed by extraction of the template. In the hydrothermal process, Ni(NO3)2⋅6H2O was employed as the precursor of Ni(OH)2. SEM, TEM, XPS, XRD, and N2 adsorption‐desorption isotherm techniques were used to characterize the structure and morphology of Ni(OH)2‐HSs. The obtained Ni(OH)2‐HSs have a uniform morphology with an average diameter of 300 nm and shell thickness of about 25 nm. The mesoporous shells of the Ni(OH)2‐HSs are composed of amorphous Ni(OH)2 particles. When used as an electrode, the as‐prepared Ni(OH)2‐HSs exhibit pseudocapacitive behavior with a high specific capacitance of 2559 F g−1 at a scan rate of 1 mV s−1 and a good capacitance retention of 91.8% after 1000 cycles at a current density of 5 A g−1. These results suggest promising applications of the waxberry‐like amorphous Ni(OH)2 hollow spheres in electrode materials for supercapacitors.

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Section: Resultsmentioning

confidence: 99%

Section: Introductionmentioning

confidence: 99%

Fabrication of Amorphous Mesoporous Ni(OH)₂ Hollow Spheres with Waxberry‐Like Morphology for Supercapacitor Electrodes

et al. 2017

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“…Compared to many techniques that have been developed for glucose detection over the past few decades, such as high performance liquid chromatography (HPLC) [2,3], colorimetry [4], spectrophotometry [5], chemiluminescence [6], electrode [7,8], electrochemical sensor [9,10], quantum dots sensing [11] and optical sensing [12,13], fiber optic biosensors have many advantages such as high sensitivity, fast response, immunity from electrical interference, long distance sensing [14]. As a branch of fiber optic sensors, the enzyme-based fiber optic biosensors reveal potential applications in many fields with the optimization of its features.…”

Section: Introductionmentioning

confidence: 99%

Temperature controlling fiber optic glucose sensor based on hydrogel-immobilized GOD complex

Huang

Zhang

et al. 2016

Sensors and Actuators B: Chemical

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“…Among various methods (e.g. acoustic, fluorescent, optical and electronic techniques), electrochemical biosensors have attracted much attention due to the advantages of simple operation, high reliability, good sensitivity, low detection limit and low cost [3][4][5]. Electrochemical biosensors can analyze the content of a biological sample by direct conversion of a biological event to an electronic signal [1].…”

Section: Introductionmentioning

confidence: 99%

Remarkably accelerated room-temperature hydrogen sensing of MoO3 nanoribbon/graphene composites by suppressing the nanojunction effects

Yang

Wang

Zou

et al. 2017

Sensors and Actuators B: Chemical

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We present a novel hybrid electrodes based on reduced graphene oxide/nickel/zinc oxide heterostructures. The sensor was fabricated by template-free hydrothermal growth of ZnO nanorod arrays on conductive glass substrates (FTO) followed by conformal electrodeposition of nickel nanoparticles with an average size of 18 nm. Then, in-situ reduction and electrophoretic deposition of graphene oxide (GO) nanosheets on the structured ZnO/Ni electrode was performed. The prepared three-dimensional nanostructure exhibited fast electrocatalytic response (<3s) towards glucose oxidation due to the large surface area and high electro-activity. The prepared biosensor possessed a wide linear range over 0.5 μM to 1.11 mM, a low detection limit of 0.15 μM at signal/noise ratio (S/ N) of 3, and a sensitivity of 2030 µAcm-2 mM-1. Therefore, the performance of the sensor regarding the detection limit and sensitivity is better than many other electrodes utilized for non-enzymatic glucose detection. No interference from different electroactive substances such as uric acid and ascorbic acid is also noticed. The potential application of the 3D hybrid biosensors for detection of glucose in real human serum samples is shown. This novel structured electrode holds great promise for the development of biosensors and other electrochemical devices.

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Nanosheets-assembled hierarchical microstructured Ni(OH)2 hollow spheres for highly sensitive enzyme-free glucose sensors

Cited by 69 publications

References 47 publications

Fabrication of Amorphous Mesoporous Ni(OH)₂ Hollow Spheres with Waxberry‐Like Morphology for Supercapacitor Electrodes

Fabrication of Amorphous Mesoporous Ni(OH)₂ Hollow Spheres with Waxberry‐Like Morphology for Supercapacitor Electrodes

Temperature controlling fiber optic glucose sensor based on hydrogel-immobilized GOD complex

Remarkably accelerated room-temperature hydrogen sensing of MoO3 nanoribbon/graphene composites by suppressing the nanojunction effects

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Nanosheets-assembled hierarchical microstructured Ni(OH)2 hollow spheres for highly sensitive enzyme-free glucose sensors

Cited by 69 publications

References 47 publications

Fabrication of Amorphous Mesoporous Ni(OH)2 Hollow Spheres with Waxberry‐Like Morphology for Supercapacitor Electrodes

Fabrication of Amorphous Mesoporous Ni(OH)2 Hollow Spheres with Waxberry‐Like Morphology for Supercapacitor Electrodes

Temperature controlling fiber optic glucose sensor based on hydrogel-immobilized GOD complex

Remarkably accelerated room-temperature hydrogen sensing of MoO3 nanoribbon/graphene composites by suppressing the nanojunction effects

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Product

Resources

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Fabrication of Amorphous Mesoporous Ni(OH)₂ Hollow Spheres with Waxberry‐Like Morphology for Supercapacitor Electrodes

Fabrication of Amorphous Mesoporous Ni(OH)₂ Hollow Spheres with Waxberry‐Like Morphology for Supercapacitor Electrodes