Article
Chemistry, Multidisciplinary
Vinay Arya, Abhirup Chaudhuri, Chirodeep Bakli
Summary: This study demonstrates the facile nanoscale engineering of ion transport through nanoporous graphene membranes by modulating the effective membrane pore size using macroscopic membrane functionalization. Molecular dynamics simulations reveal that the varying membrane wettability influences the structural organization of ions and water molecules in the nanopore, leading to altered permeation characteristics. The solvation characteristics of ionic species and van der Waals interactive forces also play a role in the ion-selective nature of the membrane. The relative hydrophilization of the nanoporous graphene membrane allows control over the permeation characteristics and results in ion selectivity.
Article
Chemistry, Physical
Xian-Gang Hu, Qinwei Wei, Yi-Ming Zhao, Peng-Xiang Hou, Wencai Ren, Chang Liu, Hui-Ming Cheng
Summary: Using a simple drop-casting method, a FeCl3-functionalized GO/SWCNT composite film was fabricated for heterojunction solar cells, which significantly increased the photocurrent, photovoltage, and fill factor, resulting in a high conversion efficiency of 17.5%.
JOURNAL OF MATERIALS CHEMISTRY A
(2022)
Article
Chemistry, Physical
Julien Billon, Viacheslav Shkirskiy, Sylvie Dabos-Seignon, Tony Breton, Christelle Gautier
Summary: The results of this study demonstrate that a functional monolayer can be easily formed by the spontaneous reduction of an aryldiazonium salt on gold, resembling the self-assembled monolayer (SAM) technique.
PHYSICAL CHEMISTRY CHEMICAL PHYSICS
(2022)
Article
Nanoscience & Nanotechnology
Edgar H. Ramirez-Soria, Sergio Garcia-Dali, Jose M. Munuera, Daniel F. Carrasco, Silvia Villar-Rodil, Juan M. D. Tascon, Juan Paredes, Jose Bonilla-Cruz
Summary: Phosphate-functionalized graphene was successfully obtained via anodic exfoliation of graphite using different concentrations of H3PO4 or Na3PO4 as electrolytes and phosphate sources. The optimal concentrations showed high phosphorus contents and achieved competitive performance in capacitive energy storage devices. Devices made with these materials demonstrated high energy and power densities with excellent capacitance retention after cycling, promoting a more sustainable and greener energy-storage device.
ACS APPLIED MATERIALS & INTERFACES
(2021)
Article
Nanoscience & Nanotechnology
Roberto Munoz, Laia Leon-Boigues, Elena Lopez-Elvira, Carmen Munuera, Luis Vazquez, Federico Mompean, Jose Angel Martin-Gago, Irene Palacio, Mar Garcia-Hernandez
Summary: The modification of graphene surface with polymers allows for expanding its applications as a hybrid material. However, the chemical inertness of graphene poses a challenge for covalent functionalization. Researchers have developed a clean and scalable method to enhance the graphene chemical activity and synthesized a large-scale graphene-polymer hybrid material.
ACS APPLIED MATERIALS & INTERFACES
(2023)
Review
Green & Sustainable Science & Technology
Mohammed Abdillah Ahmad Farid, Yoshito Andou
Summary: Due to its carbon-dense structure and renewable nature, lignocellulosic biomass has emerged as a novel source for graphene production. Various techniques are employed to synthesize graphene from lignocellulosic biomass. This review provides insights into the compositions of lignocellulosic biomass and the mechanisms of graphene-based material production, while also summarizing their applications, environmental impacts, economic concerns, and production challenges.
JOURNAL OF CLEANER PRODUCTION
(2022)
Article
Multidisciplinary Sciences
Jean-Baptiste Vaney, Baptiste Vignolle, Alain Demourgues, Etienne Gaudin, Etienne Durand, Christine Labrugere, Fabio Bernardini, Andres Cano, Sophie Tence
Summary: This article introduces a topochemical method for intercalating fluorine atoms into intermetallics and demonstrates its potential by synthesizing non-stoichiometric mixed anion LaFeSiFx single crystals, which exhibit FeSi-based superconductivity. The study shows that fluorine topochemistry on intermetallics is an effective route for providing functional materials.
NATURE COMMUNICATIONS
(2022)
Article
Chemistry, Applied
Iranzu Barbarin, Nikolaos Politakos, Luis Serrano-Cantador, Juan Antonio Cecilia, Oihane Sanz, Radmila Tomovska
Summary: This study presents a versatile and robust technique for the production of functionalized 3D porous graphene/polymer monolithic structures based on aqueous self-assembly process. The addition of polymer particles in the synthesis allows for the control of textural properties and improved selectivity for CO2 capture.
MICROPOROUS AND MESOPOROUS MATERIALS
(2022)
Article
Engineering, Chemical
Shougang Fan, Zhihao Yu, Xi Wang, Yiyi Tao, Huaiqi Shao, Mingce Long, Xiaoyan Guo
Summary: This study successfully fabricated a graphene oxide (GO)-based nanocomposite membrane through layer-by-layer self-assembly, which significantly improved the membrane's permeability and antifouling performance. The nanocomposite membrane exhibited enhanced water flux and antifouling performance, and maintained structural stability even after physicochemical cleaning.
Article
Engineering, Chemical
Elham Jashni, Sayed Mohsen Hosseini, Meisam Shabanian, Mohtada Sadrzadeh
Summary: This study introduces a novel layer-by-layer strategy to produce a monovalent cation perm-selective membrane with enhanced antifouling properties. By utilizing appropriate materials and additives, the membrane exhibited improved permselectivity and antifouling ability.
SEPARATION AND PURIFICATION TECHNOLOGY
(2022)
Article
Chemistry, Physical
Bapun Barik, Yejin Yun, Aniket Kumar, Hohan Bae, Yeon Namgung, Jun-Young Park, Sun-Ju Song
Summary: Acidic group functionalized graphene oxide (GO) is used to improve the quality of state-of-the-art Nafion electrolytes for next-generation fuel cell application. Single-step-phosphorylated graphene oxide (sPGO) modified Nafion (sPGO/NF) achieves high proton conductivity, chemical durability, and power density under actual fuel cell conditions.
INTERNATIONAL JOURNAL OF HYDROGEN ENERGY
(2023)
Article
Engineering, Chemical
Yujunwen Li, Rui Yang, Qingli Hao, Wu Lei
Summary: The functionalized graphene/montmorillonite nanocomposite showed remarkable lubricating properties and wear resistance when used as an oil additive. The formation of a repair layer composed of Fe2O3, SiC, SiO2, and aluminosilicate contributed to improved hardness on the friction surface.
Article
Multidisciplinary Sciences
Sonja Schmid, Cees Dekker
Summary: NEOtrap is a novel single-molecule technique that can be applied in various fields such as biosensing, enzymology, protein folding, and protein dynamics, demonstrating unique versatility and potential.
Article
Multidisciplinary Sciences
Ye Lu, Nan Liu, Yongbo Liu, Liming Zheng, Junhao Yang, Jia Wang, Xia Jia, Qinru Zi, Hailin Peng, Yu Rao, Hong-Wei Wang
Summary: The air-water interface and preferential orientation problems are crucial challenges in cryo-EM specimen preparation. In this study, the authors successfully overcome preferred orientation by utilizing graphene-coated EM grids functionalized by salts with various electrostatic properties.
NATURE COMMUNICATIONS
(2022)
Article
Chemistry, Analytical
Jin Song, Ghulam Abbas, Ashaq Ali, Yaohong Ma, Yiwei Li
Summary: In vitro diagnostics (IVD) aims to ensure human welfare and life security. Electrochemical sensors have been widely used in various applications, including IVD, due to their high sensitivity, simplicity, and cost-effectiveness. However, achieving reproducibility and accuracy remains a challenge for electrochemical IVD sensors, particularly in disease biomarker detection and infection prognoses. Recent advancements in electrochemically ratiometric biosensors (BERS) have shown promising potential for IVD applications, and this review discusses their signal generation strategies, analysis applications, and challenges in real-world implementation.
JOURNAL OF ELECTROANALYTICAL CHEMISTRY
(2023)