Practical use of polymer brushes in sustainable energy applications: interfacial nanoarchitectonics for high-efficiency devices

Giussi, Juan M.; Cortez, M. Lorena; Marmisollé, Waldemar A.; Azzaroni, Omar

doi:10.1039/c8cs00705e

Cited by 126 publications

(74 citation statements)

References 205 publications

Supporting

Mentioning

Contrasting

Order By: Relevance

“…1,3 Polymer brushes have been studied theoretically and experimentally for decades to understand and tune the properties of surfaces, including, anti-fouling, low-friction, responsive functions, etc. [5][6][7][8][9][10][11][12][13] Numerous researchers have focused on studying the swelling behavior of polymer brushes as a function of the brush molecular weight or grafting density in good solvents. [14][15][16][17][18][19] Several researchers reported on degrafting of hydrophilic polymer brushes in aqueous solution 20,21 and even degrafting of hydrophobic polymers in organic solvents.…”

Section: Introductionmentioning

confidence: 99%

Spontaneous Degrafting of Weak and Strong Polycationic Brushes in Aqueous Buffer Solutions

Genzer

2019

Macromolecules

View full text Add to dashboard Cite

Polymers grafted to substrates have traditionally been considered stable because of the covalent bonds that hold the polymers attached to the substrate. However, several recent reports have indicated that grafted polymers may detach from substrates under specific conditions. In this work we report on a systematic study of polymer degrafting involving polycationic brushes with different degrees of quaternization (DQ, mol %), which have been incubated in three different buffer solutions (pH 4, 7.4, and 9) with the same ionic strength of 0.05 M. We have varied the molecular weight (MW) and grafting density () of the polymer brushes using a combinatorial set up to examine the effect of MW, , and DQ on polymer degrafting. Furthermore, we explored the effect of the bonding environment at the base of the initiator (mono-vs. tri-functional) of the grafted polymer layer at the substrate on the overall stability of polymer brushes on the substrate. The two major findings in this paper are: 1) degrafting of polycationic grafts from flat silica substrate increases with increasing DQ of the polymer, and 2) polymer degrafting likely occurs both in the initiator ester group and the silane head-group at the silicon substrate.

show abstract

Section: Introductionmentioning

confidence: 99%

Spontaneous Degrafting of Weak and Strong Polycationic Brushes in Aqueous Buffer Solutions

Genzer

2019

Macromolecules

View full text Add to dashboard Cite

show abstract

“…Polymer brushes are assemblies of macromolecules that are tethered by one end to a surface. These macromolecular architectures bearing different functional groups along their backbones can be grafted on different surfaces, and even in constrained environments . There are two main strategies for generating polymer brushes on solid surfaces: “grafting to” and “grafting from.” In the “grafting‐to” technique, presynthesized polymers are anchored to a surface from solution.…”

Section: Functionalization Of Solid‐state Nanoporesmentioning

confidence: 99%

Molecular Design of Solid‐State Nanopores: Fundamental Concepts and Applications

et al. 2019

Self Cite

View full text Add to dashboard Cite

Solid‐state nanopores are fascinating objects that enable the development of specific and efficient chemical and biological sensors, as well as the investigation of the physicochemical principles ruling the behavior of biological channels. The great variety of biological nanopores that nature provides regulates not only the most critical processes in the human body, including neuronal communication and sensory perception, but also the most important bioenergetic process on earth: photosynthesis. This makes them an exhaustless source of inspiration toward the development of more efficient, selective, and sophisticated nanopore‐based nanofluidic devices. The key point responsible for the vibrant and exciting advance of solid nanopore research in the last decade has been the simultaneous combination of advanced fabrication nanotechnologies to tailor the size, geometry, and application of novel and creative approaches to confer the nanopore surface specific functionalities and responsiveness. Here, the state of the art is described in the following critical areas: i) theory, ii) nanofabrication techniques, iii) (bio)chemical functionalization, iv) construction of nanofluidic actuators, v) nanopore (bio)sensors, and vi) commercial aspects. The plethora of potential applications once envisioned for solid‐state nanochannels is progressively and quickly materializing into new technologies that hold promise to revolutionize the everyday life.

show abstract

“…Apart from small molecules, covalent modification of ultra-thin conducting polymers onto the carbon surface is another promising way to provide fast and reversible Faradaic redox reactions. [99,100] Baek et al reported ultrathin polyaniline-grafted RGO (denoted as PANI-g-rGO) through in situ chemical oxidative grafting of aniline in the presence of oxidizing agent ( Figure 8A). Benefiting from the covalent interaction between PANI and rGO, the PANIg-rGO exhibited a room-temperature electrical conductivity as high as 8.66 S cm −1 .…”

Section: Ultra-thin Polymersmentioning

confidence: 99%

High‐efficiency utilization of carbon materials for supercapacitors

et al. 2020

View full text Add to dashboard Cite

With the rapid development of mobile electronics and electric vehicles, the future development of supercapacitors focuses on not only high energy and power densities but also device minimization and lightweight. Although activated carbon based on an electric double-layer mechanism has been used in commercialized supercapacitors, it is unsatisfied with the ever-increasing demands for high energy and power device in a limited space. Therefore, it is urgent for the design and preparation of advanced carbon electrode materials with both high gravimetric and volumetric performance without sacrificing their inherent high-rate ability and long-lifespan. This review presents the latest developments in highefficiency utilization of carbon materials for supercapacitors including the carbon surface and space. We discuss the impact of pore engineering, conductive network, and surface engineering on the energy storage ability of the carbon materials, and highlight the synthesis and characterization as well as the relationship between their structural properties and electrochemical performance. Finally, future research towards developing advanced carbon supercapacitors, perspectives, and challenges are outlined.

show abstract

Practical use of polymer brushes in sustainable energy applications: interfacial nanoarchitectonics for high-efficiency devices

Abstract: Polymer brushes provide a new perspective from which to consider the development of energy conversion and storage devices with improved performance and efficiency.

Cited by 126 publications

References 205 publications

Spontaneous Degrafting of Weak and Strong Polycationic Brushes in Aqueous Buffer Solutions

Spontaneous Degrafting of Weak and Strong Polycationic Brushes in Aqueous Buffer Solutions

Molecular Design of Solid‐State Nanopores: Fundamental Concepts and Applications

High‐efficiency utilization of carbon materials for supercapacitors

Contact Info

Product

Resources

About