Covalent functionalization of carbon materials with redox-active organic molecules for energy storage

Khan, Rizwan; Nishina, Yuta

doi:10.1039/d0nr07500k

Cited by 41 publications

(25 citation statements)

References 151 publications

Supporting

Mentioning

Contrasting

Order By: Relevance

“…3a). 9,36,37 This result confirmed the successful functionalization of graphene with the anthraquinone mole-Fig. 2 (a) Wide-scan XPS analysis of (i) GO 1a, and (ii) GO 2a.…”

Section: Optimization Of the Cross-linker For Scssupporting

confidence: 64%

“…7,8 In contrast, the specific capacitance of pseudocapacitors is higher than that of EDLCs, but gradually decreases because of the faradaic transformation of capacitive electrode materials by gradual degradation. 9 Graphene is a promising electrode component because it has a large surface area, [10][11][12] excellent electrical conductivity, 13,14 and high mechanical strength. 15,16 For pseudocapacitive materials, redox-active small organic molecules are attractive in terms of structural diversity, ease of synthesis, and handling.…”

Section: Introductionmentioning

confidence: 99%

See 1 more Smart Citation

Grafting redox-active molecules on graphene oxide through a diamine linker: length optimization for electron transfer

Khan

Nishina

2022

Dalton Trans.

Self Cite

View full text Add to dashboard Cite

show abstract

“…3a). 9,36,37 This result confirmed the successful functionalization of graphene with the anthraquinone mole-Fig. 2 (a) Wide-scan XPS analysis of (i) GO 1a, and (ii) GO 2a.…”

Section: Optimization Of the Cross-linker For Scssupporting

confidence: 64%

Section: Introductionmentioning

confidence: 99%

Grafting redox-active molecules on graphene oxide through a diamine linker: length optimization for electron transfer

Khan

Nishina

2022

Dalton Trans.

Self Cite

View full text Add to dashboard Cite

show abstract

“…Recently, we have proposed an ISM-free concept for SC-ISE based on lithiumion battery materials [49]. In addition to these materials, biocompatible, redox-active polymers based on carbon nanotubes and covalent functionalized organic matrices exhibit the ion-to-electron transduction ability, and ion recognition could have the potential to construct ISM-free ion sensors [55][56][57].…”

Section: Supplementary Materialsmentioning

confidence: 99%

Solid-Contact Potentiometric Anion Sensing Based on Classic Silver/Silver Insoluble Salts Electrodes without Ion-Selective Membrane

et al. 2021

View full text Add to dashboard Cite

Current solid potentiometric ion sensors mostly rely on polymeric-membrane-based, solid-contact, ion-selective electrodes (SC-ISEs). However, anion sensing has been a challenge with respect to cations due to the rareness of anion ionophores. Classic metal/metal insoluble salt electrodes (such as Ag/AgCl) without an ion-selective membrane (ISM) offer an alternative. In this work, we first compared the two types of SC-ISEs of Cl− with/without the ISM. It is found that the ISM-free Ag/AgCl electrode discloses a comparable selectivity regarding organic chloride ionophores. Additionally, the electrode exhibits better comprehensive performances (stability, reproducibility, and anti-interference ability) than the ISM-based SC-ISE. In addition to Cl−, other Ag/AgX electrodes also work toward single and multi-valent anions sensing. Finally, a flexible Cl− sensor was fabricated for on-body monitoring the concentration of sweat Cl− to illustrate a proof-of-concept application in wearable anion sensors. This work re-emphasizes the ISM-free SC-ISEs for solid anion sensing.

show abstract

“…These methods are considered to preserve most of the graphene properties, though the interaction between the added functional groups and the graphene surface are relatively weak; hence, it is not appropriate for applications where strong interactions are required. Conversely, in the covalent modification methods, strong interactions between graphene and the added functional groups are present; therefore, the graphene pristine structure is normally disrupted, leading to inferior electrical conductivity and mechanical properties, however promoting a better quality hybrid material due to better dispersion and improved interaction among different materials that compose the hybrid material [99,100].…”

Section: Graphene Functionalizationmentioning

confidence: 99%

Perovskite@Graphene Nanohybrids for Breath Analysis: A Proof-of-Concept

et al. 2021

View full text Add to dashboard Cite

Nanohybrids comprising graphene loaded with perovskite nanocrystals have been demonstrated as a potential option for sensing applications. Specifically, their combination presents an interesting synergistic effect owing to greater sensitivity when bare graphene is decorated with perovskites. In addition, since the main drawback of perovskites is their instability towards ambient moisture, the hydrophobic properties of graphene can protect them, enabling their use for ambient monitoring, as previously reported. However not limited to this, the present work provides a proof-of-concept to likewise employ them in a potential application as breath analysis for the detection of health-related biomarkers. There is a growing demand for sensitive, non-invasive, miniaturized, and inexpensive devices able to detect specific gas molecules in human breath. Sensors gathering these requirements may be employed as a screening tool for reliable and fast detection of potential health issues. Moreover, perovskite@graphene nanohybrids present additional properties highly desirable as the capability to be operated at room temperature (i.e., reduced power consumption), reversible interaction with gases (i.e., reusability), and long-term stability. Within this perspective, the combination of both nanomaterials, perovskite nanocrystals and graphene, possibly includes the main requirements needed, being a promising option to be employed in the next generation of sensing devices.

show abstract

Covalent functionalization of carbon materials with redox-active organic molecules for energy storage

Abstract: Carbon-based materials (CBMs) have shown great versatility because they can be chemically combined with other materials for various applications. Chemical modification of CBMs can be achieved via either covalent or...

Cited by 41 publications

References 151 publications

Grafting redox-active molecules on graphene oxide through a diamine linker: length optimization for electron transfer

Grafting redox-active molecules on graphene oxide through a diamine linker: length optimization for electron transfer

Solid-Contact Potentiometric Anion Sensing Based on Classic Silver/Silver Insoluble Salts Electrodes without Ion-Selective Membrane

Perovskite@Graphene Nanohybrids for Breath Analysis: A Proof-of-Concept

Contact Info

Product

Resources

About