Review
Engineering, Environmental
Ankush D. Sontakke, Mihir K. Purkait
Summary: GONS is a nano-morphology of GO with unique properties, less studied for its potential applications; in-depth understanding of GONS could lead to its utilization in real-world applications. This paper critically reviews recent advancements in GONS fabrication processes, scrolling mechanism, and its potential applications.
CHEMICAL ENGINEERING JOURNAL
(2021)
Article
Chemistry, Physical
Wanxi Li, Boqiong Li, Yali Zhao, Xiaoqin Wei, Fang Guo
Summary: Component regulation and microstructure design are effective strategies to improve microwave absorption performance. A sandwich-like graphene-based absorbent with adjustable Fe3O4 content was synthesized through ultrasonic dispersion, blast drying, and roasting. The sandwich structure formed multiple interfaces, prevented nanoparticle aggregation, and facilitated interface polarization, resulting in enhanced impedance matching and microwave attenuation. The absorbent achieved an effective absorption bandwidth of 5.7 GHz and a minimum reflection loss value of -49.9 dB. Moreover, the synthesis process is simple and suitable for large-scale production and industrial applications. This facile route provides new ideas for designing graphene-based nanocomposites.
JOURNAL OF COLLOID AND INTERFACE SCIENCE
(2023)
Article
Chemistry, Analytical
Ying-Ge Xu, Jian Liu, Ling-Bin Kong
Summary: Using a physical mixing strategy to synthesize a carbon-graphene composite can improve the electrode performance of potassium-ion batteries. By using F127 as a template, a unique structure of RGO with corrugated surface and F127-derived hard carbon with many holes were obtained in FRC.
JOURNAL OF ELECTROANALYTICAL CHEMISTRY
(2022)
Article
Chemistry, Physical
Huifang Kuang, Huangqing Zhang, Xiaohong Liu, Yudong Chen, Wengong Zhang, Hong Chen, Qidan Ling
Summary: To enhance the electrochemical performance of electrode materials for energy storage devices, a core-shell heterostructure graphene nanoscrolls composite was designed and synthesized. This composite provides more active sites for pseudocapacitive reactions, promotes the collection/transport of electrons and ions, and buffers the volume variation of active matters during cycling. The as-obtained electrode exhibits a high specific capacitance and a long cycle life.
Article
Chemistry, Multidisciplinary
Khaled Rhili, Siham Chergui, Ahmad Samih ElDouhaibi, Mohamed Siaj
Summary: A flame-retardant composite was synthesized using functionalized graphene oxide, showing excellent fire resistance and thermal stability. The investigation of the composite with different concentrations of FGO revealed its potential applications in various fields due to its high flame-retardant capabilities.
Article
Materials Science, Multidisciplinary
F. Caballero Briones, J. Guerrero-Contreras, S. E. Benito-Santiago, J. L. Sanchez Llamazares, F. J. Espinosa-Faller
Summary: This study observed the formation of nanoscrolls after hydrazine treatment in iron oxide-decorated graphene oxide, leading to the formation of nanoribbons after HCl treatment. The proposed mechanism includes the decoration onto the epoxy/hydroxyl moieties and the reduction of carboxyl and carbonyl groups causing the sheet rolling, with nanoribbons forming upon iron oxide dissolution and breaking of iron-carbon bonds. The superparamagnetic materials exhibited maximum saturation magnetization of 30 and 20 A.m(2).kg(-1), respectively, and the formation of these structures in FeOx-GO appears to be a more general phenomenon not described in other reports.
Article
Chemistry, Physical
Sayan Kar, Michael Rauch, Gregory Leitus, Yehoshoa Ben-David, David Milstein
Summary: This study discovered a catalyst that can stably and efficiently generate H-2 gas from formic acid without the need for solvents and additives. This finding opens up new possibilities for the large-scale application of formic acid as a hydrogen carrier.
Article
Environmental Sciences
Jing Li, Yalin Wu, Huahua Bai, Xiangli Wen, Qingxiang Zhou, Yongyong Yuan, Yongli Liu, Chunmao Chen, Libing Guo
Summary: The study demonstrated that the optimized magnetic reduced graphene oxide (MrGO) has high adsorption capacity for alkylphenols, with a heterogeneous multi-layer physical adsorption process. The adsorption interactions between MrGO and alkylphenols were mainly pi-pi, hydrogen-bond, and hydrophobic interactions, with different affinities towards different targets. The stability and recyclability of MrGO make it a promising and cost-effective option for remediation.
Article
Engineering, Environmental
Yufeng Chen, Kun Feng, Guotao Yuan, Zhenhui Kang, Jun Zhong
Summary: By modulating the electronic structure of Co in the catalyst with a small amount of doped Ni, the hydrolysis activity can be significantly enhanced. The CoNiP/GO catalyst shows remarkable performance in the hydrolysis of Ammonia borane, with excellent TOF value and good durability.
CHEMICAL ENGINEERING JOURNAL
(2022)
Article
Biotechnology & Applied Microbiology
Mohaned Hammad, Paolo Fortugno, Sebastian Hardt, Cheolyong Kim, Soma Salamon, Torsten C. Schmidt, Heiko Wende, Christof Schulz, Hartmut Wiggers
Summary: The Photo-Fenton reaction is an advanced oxidation process to break down organic pollutants in aqueous systems. This study developed a low-cost method for large-scale production of iron oxide/graphene nanostructures for the Photo-Fenton reaction, achieving high efficiencies of degradation under optimal conditions. The results suggest that the iron oxide/graphene system has potential for use in various environmental treatment processes.
ENVIRONMENTAL TECHNOLOGY & INNOVATION
(2021)
Article
Chemistry, Physical
Disi Qiao, Xiao Qu, Xinyu Chen, Bianjing Sun, Weixiao Ding, Chuntao Chen, Xinhua Peng, Dongping Sun
Summary: A novel graphene oxide/W18O49 nanocomposite (GOW) was prepared by compounding magnetic graphene oxide with tungsten oxide, and it demonstrated high efficiency in the removal of tetracycline pollutants. The adsorption mechanism of TC on GOW is mainly based on 7C-7C interaction, electrostatic attraction, complexation, cation exchange, and hydrogen bonding. In addition, GOW is reusable and shows promising potential for the efficient and sustainable removal of antibiotic pollutants in aquatic environments.
APPLIED SURFACE SCIENCE
(2023)
Article
Chemistry, Physical
Raana Tajgardoon, Ali Zarnegaryan, Dawood Elhamifar
Summary: In this study, a novel organic-inorganic hybrid catalyst was synthesized by attaching polyoxometalate onto the surface of graphene oxide. The designed catalyst showed high activity, recoverability, reusability, and durability in the preparation of benzimidazoles.
JOURNAL OF PHOTOCHEMISTRY AND PHOTOBIOLOGY A-CHEMISTRY
(2022)
Article
Engineering, Chemical
Peipei Yang, Songwei Li, Chuntai Liu, Changyu Shen, Xianhu Liu
Summary: By introducing a macromolecular to manipulate the interlayer of graphene oxide (GO), the GO-pAM-MBA composite was successfully constructed with improved adsorption capacity and water-endurance. The composite showed a higher uranium uptake capacity in aqueous solutions and performed well in real uranium mine wastewater.
SEPARATION AND PURIFICATION TECHNOLOGY
(2021)
Article
Materials Science, Multidisciplinary
Ting Shi, Yuan Yao, Yang Li, Ningning Cao, Jiahuang Jian, Peng Zhang, Songtao Lu, Wei Qin, Xiaohong Wu
Summary: Graphene nanoscrolls with unique properties, including open edges/ends and adjustable internal volume, hold great potential in various fields. This study presents a feasible method to fabricate graphene oxide nanoscrolls using carbon nanotubes as templates. The research identifies the distinct mechanism and acidity-dependent rule for the formation of nanoscrolls. The resulting nanoscroll aerogel exhibits significantly improved adsorption performance towards different organic solvents.
SCIENCE CHINA-MATERIALS
(2022)
Article
Engineering, Chemical
Hadi Ahmadi, Mohammad Zakertabrizi, Ehsan Hosseini, Withita Cha-Umpong, Mojtaba Abdollahzadeh, Asghar Habibnejad Korayem, Vicki Chen, Ho Kyong Shon, Mohsen Asadnia, Amir Razmjou
Summary: This study introduces an approach to enhance the Li+ selectivity of 2D membranes by inducing asymmetry in the morphology and chemistry of their nanochannels. This approach allows for manipulation of cation hydration shells through a sudden change in nanochannel size and the addition of nucleophilic traps. The design results in a new ion transport mechanism called Energy Surge Baffle (ESB) that significantly enriches Li+ selectivity.
Article
Materials Science, Multidisciplinary
Xingyuan Chu, Tieqi Huang, Yueqi Hu, Ruilin Dong, Jingyang Luo, Shengying Cai, Weiwei Gao, Zhen Xu, Chao Gao
SCIENCE CHINA-MATERIALS
(2020)
Review
Chemistry, Multidisciplinary
Bo Fang, Dan Chang, Zhen Xu, Chao Gao
ADVANCED MATERIALS
(2020)
Article
Chemistry, Physical
Weiquan Yao, Renwei Mao, Weiwei Gao, Weiqiu Chen, Zhen Xu, Chao Gao
Article
Chemistry, Multidisciplinary
Yinghui He, Yingjun Liu, Fan Guo, Kai Pang, Bo Fang, Ya Wang, Dan Chang, Zhen Xu, Chao Gao
CHINESE CHEMICAL LETTERS
(2020)
Article
Chemistry, Multidisciplinary
Jingyu Ma, Senpeng Lin, Yanqiu Jiang, Peng Li, Hengjie Zhang, Zhen Xu, Huaping Wu, Pengcheng Lin, Josef Breu, Weiwei Gao, Chao Gao
Article
Chemistry, Physical
Yingjun Liu, Mincheng Yang, Kai Pang, Fang Wang, Zhen Xu, Weiwei Gao, Chao Gao
Article
Chemistry, Physical
Bingna Zheng, Weiwei Gao, Yingjun Liu, Ran Wang, Zheng Li, Zhen Xu, Chao Gao
Article
Chemistry, Physical
Shengying Cai, Tianwen Bai, Hao Chen, Wenzhang Fang, Zhen Xu, Haiwen Lai, Tieqi Huang, Hanyan Xu, Xingyuan Chu, Jun Ling, Chao Gao
JOURNAL OF PHYSICAL CHEMISTRY LETTERS
(2020)
Article
Nanoscience & Nanotechnology
Alexandra Philipp, Patrick Hummel, Theresa Schilling, Patrick Feicht, Sabine Rosenfeldt, Michael Ertl, Marius Schoettle, Anna M. Lechner, Zhen Xu, Chao Gao, Josef Breu, Markus Retsch
ACS APPLIED MATERIALS & INTERFACES
(2020)
Article
Chemistry, Physical
Fang Wang, Yanqiu Jiang, Yingjun Liu, Fan Guo, Wenzhang Fang, Zhen Xu, Chao Gao
Article
Multidisciplinary Sciences
Dan Chang, Jingran Liu, Bo Fang, Zhen Xu, Zheng Li, Yilun Liu, Laurence Brassart, Fan Guo, Weiwei Gao, Chao Gao
Summary: This study investigated the reversible fusion and fission of wet-spun graphene oxide fibers, revealing that the dynamic geometric deformation of fiber shells caused by solvent stimulation is crucial for this phenomenon. The principle was further applied to flexible transitions between complex fiber assemblies and the inclusion or expulsion of guest compounds.
Article
Chemistry, Multidisciplinary
Kai Pang, Xiaoting Liu, Jintao Pang, Akram Samy, Jin Xie, Yingjun Liu, Li Peng, Zhen Xu, Chao Gao
Summary: This study presents a highly efficient acoustic absorber by constructing cellular networks of ultrathin graphene membranes into polymer foams. The graphene drums exhibit strong resonances and efficiently dissipate sound waves. This scalable method allows for transforming commercial polymer foams into superior acoustic absorbers.
ADVANCED MATERIALS
(2022)
Article
Physics, Applied
Fan Guo, Cao Yang, Zhen Xu, Chao Gao
Summary: Carbon aerogels are emerging carbon-based cellular materials with high porosity, low density, and a variety of functions. However, their wide applications are limited by poor mechanical robustness. This article discusses strategies for optimizing mechanical robustness and concludes advanced design principles for achieving stretching elasticity without introducing elastomers.
JOURNAL OF APPLIED PHYSICS
(2022)
Review
Physics, Applied
Fang Wang, Wenzhang Fang, Xin Ming, Yingjun Liu, Zhen Xu, Chao Gao
Summary: Graphene oxide (GO), a two-dimensional oxidized derivative of graphene, has unique molecular science and fluid physics, making it important for the development of graphene-based macroscopic materials. In order to fully utilize the properties of graphene in real-world applications, comprehensive understanding of the chemistry, physics, and structure-property relations of GO and graphene is necessary. Recent progress in the science, technology, and engineering of GO colloidal macromolecules has been summarized, with a focus on molecular conformation, liquid crystal behavior, relaxation behavior, and fusion/fission dynamics.
APPLIED PHYSICS REVIEWS
(2023)
Article
Chemistry, Multidisciplinary
Jingyu Ma, Xiaodan Huo, Jun Yin, Shengying Cai, Kai Pang, Yingjun Liu, Chao Gao, Zhen Xu
Summary: This study presents a method for continuously integrating stiff and soft elastic components into individual fibers through programmable microfluidic sequence spinning. The resulting mechano-metafibers exhibit two important nonlinear deformation modes - local strain amplification and retardation - which enable the design of highly sensitive strain sensors, stretchable fiber devices, high-voltage supercapacitors, and axial electroluminescent arrays.
ADVANCED MATERIALS
(2023)