Inorganic/polymer-graphene hybrid gel as versatile electrochemical platform for electrochemical capacitor and biosensor

Sun, Yimin; Zeng, Wei; Sun, Helei; Luo, Shaohong; Chen, Dugang; Chan, Vincent; Liao, Kin

doi:10.1016/j.carbon.2018.02.099

Cited by 32 publications

(13 citation statements)

References 44 publications

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“…Polymers are also frequently-used spacer to reduce the aggregation of 2D materials. [55,56] The long chain or hyperbranced structures of polymers could increase the distance between 2D nanosheets, weaken the van der Waals forces, and thus carrying out the stacking-related problems by increasing the structural hindrances between 2D nanosheets.…”

Section: Polymer Intercalationmentioning

confidence: 99%

Recent Trends in Synthesis and Applications of Porous MXene Assemblies: A Topical Review

Chen

Asif

Wang

et al. 2021

The Chemical Record

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MXene possesses high conductivity, excellent hydrophilicity, rich surface chemistry, hence holds great potential in various applications. However, MXene materials have low surface area utilization due to the agglomeration of ultrathin nanosheets. Assembling 2D MXene nanosheets into 3D multi‐level architectures is an effective way to circumvent this issue. Incorporation of MXene with other nanomaterials during the assembly process could rationally tune and tailor the specific surface area, porosity and surface chemistry of the MXene assemblies. The complementary and synergistic effect between MXene and nanomaterials could expand their advantages and make up for their disadvantages, thus boost the performance of 3D porous MXene composites. Herein, we summarize the recent progress in fabrication of porous MXene architectures from 2D to 3D, and also discuss the potential applications of MXene nanostructures in energy harvesting systems, sensing, electromagnetic interference shielding, water purification and photocatalysis.

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Section: Polymer Intercalationmentioning

confidence: 99%

Recent Trends in Synthesis and Applications of Porous MXene Assemblies: A Topical Review

Chen

Asif

Wang

et al. 2021

The Chemical Record

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“…[ 9 ] The polyacrylic acid–graphene gel scaffold (PAA–GG) was adorned with high density and uniform dispersed MnO 2 nanowires via electrodeposition. [ 10 ] The obtained material displayed a specific capacitance of 428 F g −1 at 1.0 A g −1 , resulting from the curious mixture of double layer capacitance of PAA–GG and pseudocapacitance of the MnO 2 nanowires. In sum, transition metal based catalysts are much better than noble metal based catalysts.…”

Section: Introductionmentioning

confidence: 99%

Carbon Dots‐Decorated Carbon‐Based Metal‐Free Catalysts for Electrochemical Energy Storage

Huang

Chen

Cheng

et al. 2020

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In the past ten years, carbon dots‐decorated, carbon‐based, metal‐free catalysts (CDs‐C‐MFCs) have become the fastest‐growing branch in the metal‐free materials for energy storage field. However, the further development of CDs‐C‐MFCs needs to clear up the electronic transmission mechanism rather than primarily relying on trial‐and‐error approaches. This review presents systematically and comprehensively for the first time the latest advances of CDs‐C‐MFCs in supercapacitors and metal–air batteries. The structure–performance relationship of these materials is carefully discussed. It is indicated that carbon dots (CDs) can act as the electron‐rich regions in CDs‐C‐MFCs owing to their unique properties, such as quantum confinement effects, abundant defects, countless functional groups, etc. More importantly, specific doping can effectively modify the charge/spin distribution and then facilitate electron transfer. In addition, present challenges and future prospects of the CDs‐C‐MFCs are also given.

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“…In this respect, graphene-based SPR sensors [19,20], hybrid graphene/gold plasmonic fiber-optic sensors [21], mid-infrared plasmonic biosensing with graphene [22], and multi-channel graphene sensors [23], and graphene-based Bloch-like surface wave sensors [24] have been proposed. Recently, Sun et al, reported the application of inorganic/polymer-graphene hybrid gel as a versatile electrochemical platform for an electrochemical capacitor and biosensor [25]. Sun et al, demonstrated the sensitivity enhancement of SPR biosensor based on graphene and barium titanate layers [26].…”

Section: Introductionmentioning

confidence: 99%

High-Sensitivity Terahertz Refractive Index Sensor in a Multilayered Structure with Graphene

Tang

et al. 2020

Nanomaterials

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In this paper, we propose a high-sensitivity optical sensor at terahertz frequencies based on a composite structure containing a one-dimensional photonic crystal (1D PC) coated with a layer of monolayer graphene. Between the 1D PC and the graphene there is a sensing medium. This high-sensitivity phenomenon originates from the excitation of optical resonance between the graphene and the 1D PC. The proposed sensor is highly sensitive to the Fermi energy of graphene, the thickness and refractive index of the sensing medium, and the number of graphene layers. By selecting appropriate parameters, the maximum sensitivity ( 407.36 ∘ / RIU ) is obtained. We believe the proposed configuration is promising for fabricating graphene-based biosensor- or gas-sensor devices and other related applications in the terahertz band.

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Inorganic/polymer-graphene hybrid gel as versatile electrochemical platform for electrochemical capacitor and biosensor

Cited by 32 publications

References 44 publications

Recent Trends in Synthesis and Applications of Porous MXene Assemblies: A Topical Review

Recent Trends in Synthesis and Applications of Porous MXene Assemblies: A Topical Review

Carbon Dots‐Decorated Carbon‐Based Metal‐Free Catalysts for Electrochemical Energy Storage

High-Sensitivity Terahertz Refractive Index Sensor in a Multilayered Structure with Graphene

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