MOF-Derived Bimetallic CoFe-PBA Composites as Highly Selective and Sensitive Electrochemical Sensors for Hydrogen Peroxide and Nonenzymatic Glucose in Human Serum

Chen, Chen; Xiong, Dengke; Gu, Minli; Lü, Chunxiao; Yi, Fei‐Yan; Ma, Xinghua

doi:10.1021/acsami.0c09689

Cited by 112 publications

(66 citation statements)

References 62 publications

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“…In previous work, it has been demonstrated that the hollow Co 3 O 4 nanostructures obtained from the cobalt‐based zeolite imidazolate framework (ZIF‐67) calcined in oxygen atmosphere exhibit rough surface, rich microporous structure and excellent biocompatibility, but it also shows low electrical conductivity and poor structural robustness during electrolysis [26,27] . Therefore, MOF‐derived nanomaterials are expected to show an enhanced catalytic performance with long‐term stability for glucose oxidation [28–31] …”

Section: Figurementioning

confidence: 99%

Silica‐Templated Metal Organic Framework‐Derived Hierarchically Porous Cobalt Oxide in Nitrogen‐Doped Carbon Nanomaterials for Electrochemical Glucose Sensing

et al. 2021

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As glucose molecules are well recognized to supplement the main energy source of living cells as the intermediate product of metabolism in human body, it is of great importance to develop a convenient and quantitative glucose sensor with high selectivity, high sensitivity, and high accuracy. In this work, a simple and novel strategy has been developed to obtain a high‐performance non‐enzymatic glucose sensor by constructing hierarchically porous Co3O4 embedded into the metal organic framework (MOF)‐derived N‐doped carbon matrix based on a SiO2 template, denoted as ST‐Co3O4. The removal of the SiO2 template creates abundant voids and a large specific surface for the obtained layered mesoporous ST‐Co3O4 composite, which enhances the electron transfer kinetics and the ability to adsorb biomolecules, further greatly improving the surface reaction efficiency and promoting the improvement of its catalytic performance. Compared with pure Co3O4 nanoparticles from ZIF‐67 without a silica template, as‐obtained ST‐Co3O4 shows a good mesoporous environment, provides more active sites, and makes the non‐enzymatic glucose sensor exhibit high sensitivity (2860 μA mM−1 cm−2) and fast response time (<1 s) over a wide linear glucose concentration range of 1.0–1300.0 μM. Additionally, the ST‐Co3O4/CC electrode demonstrates good anti‐interference, high repeatability, and robust stability (>3000 s), which can repeatedly detect the glucose species in real human serum (RSD<9.69 %, n=3), and shows broad prospects in non‐enzymatic sensors.

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Section: Figurementioning

confidence: 99%

Silica‐Templated Metal Organic Framework‐Derived Hierarchically Porous Cobalt Oxide in Nitrogen‐Doped Carbon Nanomaterials for Electrochemical Glucose Sensing

et al. 2021

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“…MOFs are typically produced by solution mixture from room temperature to 250 °C at ambient pressure, with reaction time from a couple of minutes to several days. Due to the presence of the organic and inorganic moieties in their frameworks, they were extensively investigated in several technological applications such as gas adsorption and separation [57][58][59], electrocatalysis [17-19, 60, 61], chemical sensing [62][63][64], biomedical applications [64,65], and proton conduction [66,67]. Importantly, owing to the presence of the organic and inorganic counterparts in their composition, MOFs present numerous application chances in catalysis.…”

Section: Introductionmentioning

confidence: 99%

Design Engineering, Synthesis Protocols, and Energy Applications of MOF-Derived Electrocatalysts

et al. 2021

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The core reactions for fuel cells, rechargeable metal–air batteries, and hydrogen fuel production are the oxygen reduction reaction (ORR), oxygen evolution reaction (OER), and hydrogen evolution reaction (HER), which are heavily dependent on the efficiency of electrocatalysts. Enormous attempts have previously been devoted in non-noble electrocatalysts born out of metal–organic frameworks (MOFs) for ORR, OER, and HER applications, due to the following advantageous reasons: (i) The significant porosity eases the electrolyte diffusion; (ii) the supreme catalyst–electrolyte contact area enhances the diffusion efficiency; and (iii) the electronic conductivity can be extensively increased owing to the unique construction block subunits for MOFs-derived electrocatalysis. Herein, the recent progress of MOFs-derived electrocatalysts including synthesis protocols, design engineering, DFT calculations roles, and energy applications is discussed and reviewed. It can be concluded that the elevated ORR, OER, and HER performances are attributed to an advantageously well-designed high-porosity structure, significant surface area, and plentiful active centers. Furthermore, the perspectives of MOF-derived electrocatalysts for the ORR, OER, and HER are presented.

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“…Ever since the conception of nanocrystalline materials by Rozlin in 2012, the CoFe alloy found in magnetic materials has presented excellent soft magnetic properties, categorized by high saturation magnetization (Ms) and a high Curie temperature (T C ) [1]. This topic has continued to attract the attention of scholars researching CoFe material, which can be applied to magnetic equipment for sensor, actuator, and read-write recorder applications [2][3][4][5][6]. The CoFe matrix with magnetic properties combines with boron (B) to form CoFeB material, which is a soft magnetic material that is applied widely to spin electronic devices.…”

Section: Introductionmentioning

confidence: 99%

Annealing Effect on the Characteristics of Co40Fe40W10B10 Thin Films on Si(100) Substrate

et al. 2021

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This research explores the behavior of Co40Fe40W10B10 when it is sputtered onto Si(100) substrates with a thickness (tf) ranging from 10 nm to 100 nm, and then altered by an annealing process at temperatures of 200 °C, 250 °C, 300 °C, and 350 °C, respectively. The crystal structure and grain size of Co40Fe40W10B10 films with different thicknesses and annealing temperatures are observed and estimated by an X-ray diffractometer pattern (XRD) and full-width at half maximum (FWHM). The XRD of annealing Co40Fe40W10B10 films at 200 °C exhibited an amorphous status due to insufficient heating drive force. Moreover, the thicknesses and annealing temperatures of body-centered cubic (BCC) CoFe (110) peaks were detected when annealing at 250 °C with thicknesses ranging from 80 nm to 100 nm, annealing at 300 °C with thicknesses ranging from 50 nm to 100 nm, and annealing at 350 °C with thicknesses ranging from 10 nm to 100 nm. The FWHM of CoFe (110) decreased and the grain size increased when the thickness and annealing temperature increased. The CoFe (110) peak revealed magnetocrystalline anisotropy, which was related to strong low-frequency alternative-current magnetic susceptibility (χac) and induced an increasing trend in saturation magnetization (Ms) as the thickness and annealing temperature increased. The contact angles of all Co40Fe40W10B10 films were less than 90°, indicating the hydrophilic nature of Co40Fe40W10B10 films. Furthermore, the surface energy of Co40Fe40W10B10 presented an increased trend as the thickness and annealing temperature increased. According to the results, the optimal conditions are a thickness of 100 nm and an annealing temperature of 350 °C, owing to high χac, large Ms, and strong adhesion; this indicates that annealing Co40Fe40W10B10 at 350 °C and with a thickness of 100 nm exhibits good thermal stability and can become a free or pinned layer in a magnetic tunneling junction (MTJ) application.

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MOF-Derived Bimetallic CoFe-PBA Composites as Highly Selective and Sensitive Electrochemical Sensors for Hydrogen Peroxide and Nonenzymatic Glucose in Human Serum

Cited by 112 publications

References 62 publications

Silica‐Templated Metal Organic Framework‐Derived Hierarchically Porous Cobalt Oxide in Nitrogen‐Doped Carbon Nanomaterials for Electrochemical Glucose Sensing

Silica‐Templated Metal Organic Framework‐Derived Hierarchically Porous Cobalt Oxide in Nitrogen‐Doped Carbon Nanomaterials for Electrochemical Glucose Sensing

Design Engineering, Synthesis Protocols, and Energy Applications of MOF-Derived Electrocatalysts

Annealing Effect on the Characteristics of Co40Fe40W10B10 Thin Films on Si(100) Substrate

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