Surface chemistry and structure manipulation of graphene-related materials to address the challenges of electrochemical energy storage

Sun, Yi; Sun, Jinhua; Sanchez, Jaime S.; Xia, Zhenyuan; Xiao, Linhong; Chen, Ruiqi; Palermo, Vincenzo

doi:10.1039/d2cc06772b

Cited by 24 publications

(17 citation statements)

References 51 publications

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“…The GO surface is negatively charged with a zeta potential of −34 mV due to the presence of various C–O groups (e.g., carboxylic group). ,, After treatment with APTES, the zeta potential of GO increased to 3 mV, indicating the strong electrostatic interaction between GO and APTES (Figure S3). Accordingly, APTES-coated Cu particles feature −NH 2 groups with a positively charged surface.…”

Section: Resultsmentioning

confidence: 99%

Controllable Coating Graphene Oxide and Silanes on Cu Particles as Dual Protection for Anticorrosion

Sun,

Martinsen,

Klement

et al. 2023

ACS Appl. Mater. Interfaces

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Although two-dimensional nanosheets like graphene could be ideal atomic coatings to prevent corrosion, it is still controversial whether they are actually effective due to the presence of parasitic effects such as galvanic corrosion. Here, we reported a reduced graphene oxide (RGO) coating strategy to protect sintered Cu metal powders from corrosion by addressing the common galvanic corrosion issue of graphene. A layer of silane molecules, namely, (3-aminopropyl)triethoxysilane (APTES), is deposited between the surface of Cu particles and the graphene oxide (GO), acting as a primer to enhance adhesion and as an insulating interlayer to prevent the direct contact of the Cu with conductive RGO, mitigating the galvanic corrosion. Due to this core–shell coating, the RGO uniformly distributes in the Cu matrix after sintering, avoiding aggregation of RGO, which takes place in conventional GO-Cu composites. The dual coating of GO and silane results in bulk samples with improved anticorrosion properties, as demonstrated by galvanostatic polarization tests using Tafel analysis. Our development not only provides an efficient synthesis method to controllably coat GO on the surface of Cu but also suggests an alternative strategy to avoid the galvanic corrosion effect of graphene to improve the anticorrosion performance of metal.

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Section: Resultsmentioning

confidence: 99%

Controllable Coating Graphene Oxide and Silanes on Cu Particles as Dual Protection for Anticorrosion

Sun,

Martinsen,

Klement

et al. 2023

ACS Appl. Mater. Interfaces

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“…In this context, as single layer form of graphite, graphene has been receiving tremendous attention owing to its high intrinsic carrier mobility (350,000 cm 2 V −1 s −1 ), excellent thermal conductivity (≈3000 W m −1 K −1 ), high theoretical specific surface area (2,630 m 2 g −1 ), superior mechanical strength, high flexibility, and high Li + ion diffusivity (10 −7 −10 −6 cm 2 s −1 ). [ 288,289 ] According to a number of computational simulations, it has been predicted that graphene could possess a wide range of active spaces for Li + ion accommodation, which are available at the edges, grain boundaries, defects, as well as both sides of graphene sheets. [ 290 ]…”

Section: Lithium‐ion Batterymentioning

confidence: 99%

Recent Advances in Carbon‐Based Electrodes for Energy Storage and Conversion

et al. 2023

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Carbon-based nanomaterials, including graphene, fullerenes, and carbon nanotubes, are attracting significant attention as promising materials for next-generation energy storage and conversion applications. They possess unique physicochemical properties, such as structural stability and flexibility, high porosity, and tunable physicochemical features, which render them well suited in these hot research fields. Technological advances at atomic and electronic levels are crucial for developing more efficient and durable devices. This comprehensive review provides a state-of-the-art overview of these advanced carbon-based nanomaterials for various energy storage and conversion applications, focusing on supercapacitors, lithium as well as sodium-ion batteries, and hydrogen evolution reactions. Particular emphasis is placed on the strategies employed to enhance performance through nonmetallic elemental doping of N, B, S, and P in either individual doping or codoping, as well as structural modifications such as the creation of defect sites, edge functionalization, and inter-layer distance manipulation, aiming to provide the general guidelines for designing these devices by the above approaches to achieve optimal performance. Furthermore, this review delves into the challenges and future prospects for the advancement of carbon-based electrodes in energy storage and conversion.

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“…10 GOMs, being one of the most typical 2D nanofluidic membranes, possess densely packed 2D nanochannels functionalized with oxygen-containing groups, making them highly promising for applications in energy conversion and storage. [30][31][32][33][34] Additionally, the bandgap of GO can be adjusted by changing the content of oxygen-containing groups, rendering it suitable for photoelectric applications. [35][36][37] To further enhance the performance of GOMs, we explored slightly reduced vertical GOMs, featuring short channel lengths and efficient light absorption for better photo-driven ion pump properties.…”

Section: Introductionmentioning

confidence: 99%

Efficient photo-driven ion pump through slightly reduced vertical graphene oxide membranes

Du,

Liu,

Han

et al. 2024

Dalton Trans.

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Surface chemistry and structure manipulation of graphene-related materials to address the challenges of electrochemical energy storage

Abstract: Energy storage devices are important components in portable electronics, electric vehicles, and the electrical distribution grid. Batteries and supercapacitors have achieved great success as the spearhead of electrochemical energy storage...

Cited by 24 publications

References 51 publications

Controllable Coating Graphene Oxide and Silanes on Cu Particles as Dual Protection for Anticorrosion

Controllable Coating Graphene Oxide and Silanes on Cu Particles as Dual Protection for Anticorrosion

Recent Advances in Carbon‐Based Electrodes for Energy Storage and Conversion

Efficient photo-driven ion pump through slightly reduced vertical graphene oxide membranes

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