Covalent Functionalization of Graphene Oxide with a Presynthesized Metal–Organic Framework Enables a Highly Stable Electrochemical Sensing

Fu, Junhong; Wang, Xiuyun; Wang, Tingting; Zhang, Jie; Guo, Song; Wu, Shuo; Zhu, Fenghui

doi:10.1021/acsami.9b10531

Cited by 37 publications

(19 citation statements)

References 30 publications

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“…[ 44 ] However, the peak of CO bonds in YbHHTP (288.46 eV) shifts to a higher binding energy (288.91 eV) after its integration with GO, suggesting the possible electronic interaction between GO and MOF. [ 35 ] An identical binding energy of 185.52 eV was observed in Yb 4d spectra of YbHHTP and GO/YbHHTP (Figure 2d), [ 45 ] suggesting that the Yb 3+ oxidation state in MOF is not disturbed by the presence of GO. In the spectra of O 1s, YbHHTP and GO/YbHHTP exhibit the identical binding energies corresponding to OH bonds of adsorbed water (533.61 eV), CO (533.05 eV) and CO (531.73 eV) bonds in the coordinated catecholate, and YbO bonds (530.69 eV) (Figure S7, Supporting Information), respectively.…”

Section: Resultsmentioning

confidence: 77%

“…[ 30–34 ] In particular, Zhu and co‐workers have reported a physical mixing process to prepare highly stable NH 2 –MIL‐101(Fe)–GO (MIL = Materials of Institute Lavoisier) composites for the detection of purines and their metabolites. [ 35 ] Wang and co‐workers have demonstrated the low concentration detection of DA and UA with the aid of the in situ grown GO–ZIF‐67 (ZIF = zeolitic imidazolate framework) composites. [ 36 ] However, the rational integration of conductive MOFs and GO for electrochemical sensing has not been yet reported.…”

Section: Introductionmentioning

confidence: 99%

“…[30][31][32][33][34] In particular, Zhu and co-workers have reported a physical mixing process to prepare highly stable NH 2 -MIL-101(Fe)-GO (MIL = Materials of Institute Lavoisier) composites for the detection of purines and their metabolites. [35] Wang and co-workers have demonstrated the low The rational selection and integration of materials play important roles in advancing electrochemical sensing. Herein, a highly sensitive electrochemical platform based on composites of graphene oxide (GO) and conductive YbHHTP metal-organic framework (HHTP = 2,3,6,7,10,11-hexahydroxytriphenylene) for the detection of dopamine (DA) and uric acid (UA) is reported.…”

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confidence: 99%

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Integrating Conductive Metal–Organic Framework with Graphene Oxide to Highly Sensitive Platform for Electrochemical Sensing

Shi

Zhao

et al. 2021

Adv Materials Inter

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The abnormal level of DA concentration may mean several neurodegenerative diseases including spinocerebellar atrophy, schizophrenia, Parkinsonism, and Alzheimer. [2] Uric acid (UA) is an eventual product of dietary and endogenous purine metabolism and its overproduction is considered to be closely related to many illnesses such as hyperuricemia, gout, pneumonia, leukemia, cardiovascular disease, kidney disease, and neurological diseases. [3] Among the established methods for detecting DA and UA, [4][5][6][7][8] the electrochemical approach has attracted great attentions due to its rapid response, high sensitivity and accuracy, and low cost. [9] Relying on the rational selection and integration of materials, electrochemical detection of biological molecules has been developed rapidly in the past two decades. [10][11][12] Metal-organic frameworks (MOFs) are a kind of crystalline porous materials that consist of metal ions linked by organic ligands. [13] Due to their high surface area, regular but tunable pore size, and tailorable surface chemistry, MOFs have exhibited great potential in the fields of gas separation and storage, [14,15] drug delivery, [16] optoelectronics, [17] sensing, [18] heterogeneous catalysis, [19] and energy storage and conversion. [20,21] Some MOFs also have been explored as candidate materials for electrochemical sensing, [22,23] but their insulated nature might impose to some extent a limit on the further enhancement of sensing performances. In this regard, the conductive MOFs, typified by those containing benzene-/triphenylene-derived ligands, [24,25] would no doubt be more attractive to electrochemical sensing [26] as well as other electrochemical applications including electrocatalysis [27] and energy storage/conversion. [20,28] On the other hand, integrating MOFs with other functional materials provides an alternative route to improving the sensing performances. [29] Graphene oxide (GO), an extensively studied carbonaceous material, has also been integrated with MOFs for applications ranging from gas separation to energy storage. [30][31][32][33][34] In particular, Zhu and co-workers have reported a physical mixing process to prepare highly stable NH 2 -MIL-101(Fe)-GO (MIL = Materials of Institute Lavoisier) composites for the detection of purines and their metabolites. [35] Wang and co-workers have demonstrated the low The rational selection and integration of materials play important roles in advancing electrochemical sensing. Herein, a highly sensitive electrochemical platform based on composites of graphene oxide (GO) and conductive YbHHTP metal-organic framework (HHTP = 2,3,6,7,10,11-hexahydroxytriphenylene) for the detection of dopamine (DA) and uric acid (UA) is reported. The composites are prepared by the introduction of GO into the hydrothermal synthesis of YbHHTP. The morphology, structure, and property of the resultant GO/YbHHTP composites are characterized by scanning electron microscopy, transmission electron microscopy, X-ray diffraction, ultraviolet-visible spectroscopy,...

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Section: Resultsmentioning

confidence: 77%

Section: Introductionmentioning

confidence: 99%

mentioning

confidence: 99%

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Integrating Conductive Metal–Organic Framework with Graphene Oxide to Highly Sensitive Platform for Electrochemical Sensing

Shi

Zhao

et al. 2021

Adv Materials Inter

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“…[ 133 ] Based on current studies, composites of graphene/MOF‐based materials could integrate their superiorities and eliminate individual defections, leading the composites with enhanced stability and improved electroconductivity. [ 134–136 ] Alkordi and co‐workers produced a composite of HKUST‐1/graphene by one‐pot synthesis technology. [ 137 ] They found that the moldable composite materials allowed for an adjustable graphene content, in which the high electrical conductivity (from 7.6 × 10 –3 to 640 S cm −1 ) was positively correlated to the graphene loadings.…”

Section: Enhancing the Conductivity Of Mof‐derived Nanostructuresmentioning

confidence: 99%

Metal–Organic‐Framework‐Derived Nanostructures as Multifaceted Electrodes in Metal–Sulfur Batteries

Yan

Cheng

et al. 2021

Advanced Materials

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Metal‐sulfur batteries (MSBs) are considered up‐and‐coming future‐generation energy storage systems because of their prominent theoretical energy density. However, the practical applications of MSBs are still hampered by several critical challenges, i.e., the shuttle effects, sluggish redox kinetics, and low conductivity of sulfur species. Recently, benefiting from the high surface area, regulated networks, molecular/atomic‐level reactive sites, the metal‐organic frameworks (MOFs)‐derived nanostructures have emerged as efficient and durable multifaceted electrodes in MSBs. Herein, a timely review is presented on recent advancements in designing MOF‐derived electrodes, including fabricating strategies, composition management, topography control, and electrochemical performance assessment. Particularly, the inherent charge transfer, intrinsic polysulfide immobilization, and catalytic conversion on designing and engineering of MOF nanostructures for efficient MSBs are systematically discussed. In the end, the essence of how MOFs’ nanostructures influence their electrochemical properties in MSBs and conclude the future tendencies regarding the construction of MOF‐derived electrodes in MSBs is exposed. It is believed that this progress review will provide significant experimental/theoretical guidance in designing and understanding the MOF‐derived nanostructures as multifaceted electrodes, thus offering promising orientations for the future development of fast‐kinetic and robust MSBs in broad energy fields.

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“…Covalent functionalization involves strong molecular bonding between GDs and azobenzenes, which inevitably results in partial damage of π-conjugated structures. However, strong chemical bonds at an interface facilitate precise control and modulation of electronic properties of the composite material, contributing to efficient charge or energy transfer and quantum effects [101,102]. Many GD-AZO composites synthesized by covalent functionalization develop non-covalent interactions after composite formation, significantly influencing the properties of the composites.…”

Section: Covalent Linkagesmentioning

confidence: 99%

Strategies for Incorporating Graphene Oxides and Quantum Dots into Photoresponsive Azobenzenes for Photonics and Thermal Applications

2021

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Graphene represents a new generation of materials which exhibit unique physicochemical properties such as high electron mobility, tunable optics, a large surface to volume ratio, and robust mechanical strength. These properties make graphene an ideal candidate for various optoelectronic, photonics, and sensing applications. In recent years, numerous efforts have been focused on azobenzene polymers (AZO-polymers) as photochromic molecular switches and thermal sensors because of their light-induced conformations and surface-relief structures. However, these polymers often exhibit drawbacks such as low photon storage lifetime and energy density. Additionally, AZO-polymers tend to aggregate even at moderate doping levels, which is detrimental to their optical response. These issues can be alleviated by incorporating graphene derivatives (GDs) into AZO-polymers to form orderly arranged molecules. GDs such as graphene oxide (GO), reduced graphene oxide (RGO), and graphene quantum dots (GQDs) can modulate the optical response, energy density, and photon storage capacity of these composites. Moreover, they have the potential to prevent aggregation and increase the mechanical strength of the azobenzene complexes. This review article summarizes and assesses literature on various strategies that may be used to incorporate GDs into azobenzene complexes. The review begins with a detailed analysis of structures and properties of GDs and azobenzene complexes. Then, important aspects of GD-azobenzene composites are discussed, including: (1) synthesis methods for GD-azobenzene composites, (2) structure and physicochemical properties of GD-azobenzene composites, (3) characterization techniques employed to analyze GD-azobenzene composites, and most importantly, (4) applications of these composites in various photonics and thermal devices. Finally, a conclusion and future scope are given to discuss remaining challenges facing GD-azobenzene composites in functional science engineering.

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Covalent Functionalization of Graphene Oxide with a Presynthesized Metal–Organic Framework Enables a Highly Stable Electrochemical Sensing

Cited by 37 publications

References 30 publications

Integrating Conductive Metal–Organic Framework with Graphene Oxide to Highly Sensitive Platform for Electrochemical Sensing

Integrating Conductive Metal–Organic Framework with Graphene Oxide to Highly Sensitive Platform for Electrochemical Sensing

Metal–Organic‐Framework‐Derived Nanostructures as Multifaceted Electrodes in Metal–Sulfur Batteries

Strategies for Incorporating Graphene Oxides and Quantum Dots into Photoresponsive Azobenzenes for Photonics and Thermal Applications

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