Recent progress in the development of porous carbon-based electrodes for sensing applications

Casanova, Ana; Iniesta, Jesús; Gomis‐Berenguer, Alicia

doi:10.1039/d1an01978c

Cited by 30 publications

(14 citation statements)

References 135 publications

(151 reference statements)

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“…Such carbons are useful in a wide variety of applications such as electrocatalysts, energy storage/conversion, fuel cells, carrier for drug delivery, adsorbents for impurities in water/ fuel, and sensing of volatile organic compounds (VOCs). [123][124][125][126][127][128][129][130] Highly porous carbons are generally obtained from various precursors, including biomasses and polymers, via hightemperature carbonization and activation [131][132][133][134][135][136] in addition to the nanocasting method. The hard templating nanocasting method requires an additional step to remove the templated materials to get the well-structured porous carbon.…”

Section: Background: Nanoporous Carbonmentioning

confidence: 99%

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Porous carbon nanoarchitectonics for the environment: detection and adsorption

2022

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Section: Background: Nanoporous Carbonmentioning

confidence: 99%

Section: Introductionmentioning

confidence: 99%

Porous carbon nanoarchitectonics for the environment: detection and adsorption

2022

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“…Therefore, mesoporous carbons (MCs) have received significant research interests over the past decades due to their distinct advantages compared to activated carbon, which is the most common porous carbon and indispensable in various modern applications, [8][9][10][11] including synthetic flexibility in tuning the pore size and matrix chemistry, uniform pore structures with excellent accessibility, and enhanced mass transport within the pore channels. [12][13][14] Combining these unique properties enables MC to become a very promising material candidate in diverse fields such as separation membranes, [15][16][17] sensors, 18,19 electrodes for batteries, [20][21][22][23] catalyst support, [24][25][26] supercapacitors, [27][28][29] and adsorbents for water purification. [30][31][32][33] To date, the most successful strategies for synthesizing MCs include templating-based methods (both soft-templating and hard-templating) and directly pyrolyzing microphaseseparated carbon precursors.…”

Section: Introductionmentioning

confidence: 99%

Mesoporous carbons from self‐assembled polymers

Robertson

Zagho

Nazarenko

et al. 2022

Journal of Polymer Science

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Polymer self-assembly provides a robust and cost-efficient nanomanufacturing platform for enabling a broad range of applications, such as microelectronics, drug delivery, and separation membranes. This review focuses on discussing the progress and opportunities of self-assembled polymer in the synthesis of mesoporous carbons (MCs), which have aroused significant research interests over the past decades. Specifically, we will discuss the two most established approaches for converting nanostructured polymers to MCs, including templating-based and direct pyrolysis-based methods. We will also review the fundamental ordering mechanisms and kinetics of these polymeric systems and discuss the recent development of engineering methods for providing ondemand control over the pore size and morphology of MCs. Additionally, this review article also includes a section focusing on the strategies to further functionalize these materials from self-assembled polymers to enhance their performance, such as chemical activation, heteroatom doping, introduction of nanoparticles into the carbon matrix, and enhancing graphitization degree of carbon walls. Finally, a brief perspective is provided about the emerging research opportunity in this exciting field.

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“…However, despite significant advances in the design and use of MOF-based materials, infrequent reports of modifiers remain. Interestingly, the integration of secondary metal nodes onto the MOF surface, resulting in bimetallic MOF, has demonstrated a high degree of porosity, stronger thermal stability, and improved intrinsic characteristics, and improved electronic conductivity and active site availability over monometallic MOF [ 27 ] because bimetallic bonds induce changes in the band structure of metals, therefore enhancing the stability and high electrocatalytic response towards FAV because of the synergistic effect of both metal ions [ 28 , 29 ].…”

Section: Introductionmentioning

confidence: 99%

Electrochemical Sensing of Favipiravir with an Innovative Water-Dispersible Molecularly Imprinted Polymer Based on the Bimetallic Metal-Organic Framework: Comparison of Morphological Effects

2022

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Molecularly imprinted polymers (MIPs) are widely used as modifiers in electrochemical sensors due to their high sensitivity and promise of inexpensive mass manufacturing. Here, we propose and demonstrate a novel MIP-sensor that can measure the electrochemical activity of favipiravir (FAV) as an antiviral drug, thereby enabling quantification of the concentration of FAV in biological and river water samples and in real-time. MOF nanoparticles’ application with various shapes to determine FAV at nanomolar concentrations was described. Two different MOF nanoparticle shapes (dodecahedron and sheets) were systematically compared to evaluate the electrochemical performance of FAV. After carefully examining two different morphologies of MIP-Co-Ni@MOF, the nanosheet form showed a higher performance and efficiency than the nanododecahedron. When MIP-Co/Ni@MOF-based and NIP-Co/Ni@MOF electrodes (nanosheets) were used instead, the minimum target concentrations detected were 7.5 × 10−11 (MIP-Co-Ni@MOF) and 8.17 × 10−9 M (NIP-Co-Ni@MOF), respectively. This is a significant improvement (>102), which is assigned to the large active surface area and high fraction of surface atoms, increasing the amount of greater analyte adsorption during binding. Therefore, water-dispersible MIP-Co-Ni@MOF nanosheets were successfully applied for trace-level determination of FAV in biological and water samples. Our findings seem to provide useful guidance in the molecularly imprinted polymer design of MOF-based materials to help establish quantitative rules in designing MOF-based sensors for point of care (POC) systems.

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Recent progress in the development of porous carbon-based electrodes for sensing applications

Abstract: Electrochemical (bio)sensors are considered a clean and powerful analytical tool capable to convert an electrochemical reaction between analyte and electrode into a quantitative signal. They are an important part of...

Cited by 30 publications

References 135 publications

Porous carbon nanoarchitectonics for the environment: detection and adsorption

Porous carbon nanoarchitectonics for the environment: detection and adsorption

Mesoporous carbons from self‐assembled polymers

Electrochemical Sensing of Favipiravir with an Innovative Water-Dispersible Molecularly Imprinted Polymer Based on the Bimetallic Metal-Organic Framework: Comparison of Morphological Effects

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