Tunable dispersibility and wettability of graphene oxide through one-pot functionalization and reduction

Price, Emily; Bansala, Taruna; Achee, Thomas C.; Sun, Wenjuan; Green, Micah J.

doi:10.1016/j.jcis.2019.05.097

Cited by 26 publications

(11 citation statements)

References 66 publications

Supporting

Mentioning

Contrasting

Order By: Relevance

“…The evolution of porous structures has been studied before . More information of the as‐synthesized GO can be found in our prior study . Such gels exhibit a well‐connected 3D structure with porosity of several micrometers.…”

Section: Resultsmentioning

confidence: 99%

Lightweight Kevlar‐Reinforced Graphene Oxide Architectures with High Strength for Energy Storage

Sun

Shah

Lowery

et al. 2019

Adv Materials Inter

View full text Add to dashboard Cite

A multifunctional supercapacitor based on reduced graphene oxide (rGO) hydrogels deposited onto Kevlar fibers and woven cloth is reported, which exhibits both excellent mechanical performance and electrochemical energy storage. The specific strength of rGO hydrogel–Kevlar fibers reaches 1.6 MPa m3 kg−1 and the specific capacitance is 57 F g−1 with 38.1% of rGO. Such high specific strength is comparable to one of the as‐received Kevlar fibers (2.0 MPa m3 kg−1), indicating that the gelation process does not harm the fibers. The gel‐state symmetric device based on rGO hydrogel–Kevlar cloth survives impact from a 9.1 N force from a falling metal ball as well as deformation during bending to 90°. The high specific strength is due to the Kevlar while the specific capacitance stems from the 3D interconnected macrostructure of rGO hydrogels. To demonstrate the combination of these properties, a multifunctional efficiency is introduced based on the geometric average of mechanical and energy storage properties as compared to epoxy and carbon aerogel supercapacitor, respectively. This metric predicts an optimum combination or properties at a volume ratio of Kevlar/rGO gel between 0.0008 and 0.35.

show abstract

Section: Resultsmentioning

confidence: 99%

Lightweight Kevlar‐Reinforced Graphene Oxide Architectures with High Strength for Energy Storage

Sun

Shah

Lowery

et al. 2019

Adv Materials Inter

View full text Add to dashboard Cite

show abstract

“…Importantly, the oxygenated functional groups offer reactive positions that allow tethered more complexes chemical motif by promoting reactions between GO and alcohols, N-alkylamines or amino acids, to name a few, allowing tuning of the graphene wettability and developing new materials. 12,32,33 Wettability is recognized as the propensity of a liquid to spread on a surface, and it accounts to characterize the interfacial behavior of a material and glimpse its uses in particular applications. This is directly related to the surface energy and determines the degree of material-liquid contact, which is fundamentally important to develop materials for treatment of organic wastewater, desalination, emulsifiers and demulsifiers, among others.…”

Section: Introductionmentioning

confidence: 99%

Section: Introductionmentioning

confidence: 99%

Wettability of graphene oxide functionalized with N-alkylamines: a molecular dynamics study

Muñoz‐Rugeles

Arenas-Blanco

Campo

et al. 2022

Phys. Chem. Chem. Phys.

View full text Add to dashboard Cite

show abstract

“…Stretchable materials can offer practical applications in a wide range of fields, from electronic devices to medicine, and have gradually become a focus of surface and interface science. − One open question is to what extent the mechanical stress applied to stretchable materials can modulate their surface wettability (SW). − Tunable wettability can be obtained in different ways, physically or chemically. For example, temperature-tunable wettability has been proposed to enhance fog collection efficiency and promote unidirectional liquid transport .…”

Section: Introductionmentioning

confidence: 99%

Surface Wettability of a Natural Rubber Composite under Stretching: A Model to Predict Cell Survival

et al. 2021

View full text Add to dashboard Cite

We report the stress–strain effect of a stretchable natural rubber (NR)–calcium phosphate composite on the surface wettability (SW) using an innovative approach coupling a uniaxial tensile micromachine, goniometer, and microscope. In situ contact angle measurements in real time were performed during mechanical tension. Our results show that SW is guided by the stress–strain relationship with two different characteristics, depending on the static or dynamic experiments. The results evidenced the limits of the classical theory of wetting. Furthermore, based on the mechanically tunable SW of the system associated with the cytocompatibility of the NR composite, we have modeled such a system for application as a cell support. From the experimental surface energy value, our proposed 3D modeling numerical simulation predicted a window of opportunities for cell–NR survival under mechanical stimuli. The presented data and the thermodynamics-based theoretical approach enable not only accurate correlation of SW with mechanical properties of the NR composite but also provide huge potential for future cell supportability in view of tissue engineering.

show abstract

Tunable dispersibility and wettability of graphene oxide through one-pot functionalization and reduction

Cited by 26 publications

References 66 publications

Lightweight Kevlar‐Reinforced Graphene Oxide Architectures with High Strength for Energy Storage

Lightweight Kevlar‐Reinforced Graphene Oxide Architectures with High Strength for Energy Storage

Wettability of graphene oxide functionalized with N-alkylamines: a molecular dynamics study

Surface Wettability of a Natural Rubber Composite under Stretching: A Model to Predict Cell Survival

Contact Info

Product

Resources

About