Article
Chemistry, Multidisciplinary
Sai S. Sunku, Dorri Halbertal, Rebecca Engelke, Hyobin Yoo, Nathan R. Finney, Nicola Curreli, Guangxin Ni, Cheng Tan, Alexander S. McLeod, Chiu Fan Bowen Lo, Cory R. Dean, James C. Hone, Philip Kim, D. N. Basov
Summary: Graphene-based heterostructures present a variety of phenomena tunable by electrostatic local gates. While monolayer graphene exhibits tunable surface plasmon polaritons, bilayer graphene may display unique plasmonic effects such as plasmon amplification and domain wall plasmons. These effects are highly sensitive to displacement fields and have potential applications in nano-optics.
Article
Chemistry, Physical
Yafei Xu, Jun Wang, Rui Xu, Wuke Li
Summary: The smart catalyst shows temperature-controlled catalytic activity in releasing hydrogen from ammonia borane, with high catalytic activity at room temperature and significantly suppressed hydrogen generation at high temperature. The switchable red luminescence of the composite hydrogel in solution at high/low temperatures offers the possibility to track the catalyst and understand the catalytic mechanism. This thermo-controllable system of hydrogen generation has great potential applications in the safe hydrolysis from chemical hydride fuel.
INTERNATIONAL JOURNAL OF HYDROGEN ENERGY
(2021)
Article
Chemistry, Physical
Daryoush Khedri, Amir Hessam Hassani, Elham Moniri, Homayon Ahmad Panahi, Mehrnoosh Khaleghian
Summary: This study reported a facile strategy for the preparation of 2-vinylpyridine/thermosensitive polymer functionalized graphene oxide, which was used as a nanoadsorbent for efficient removal of phenol and 2, 4-dichlorophenol compounds in wastewater samples. Various characterization techniques were used to analyze the functional groups and structures, and experimental factors were optimized to achieve the best removal procedure and adsorption capacity.
SURFACES AND INTERFACES
(2022)
Review
Environmental Sciences
Fatemeh Nemati, Maryam Rezaie, Hadi Tabesh, Kamel Eid, Guobao Xu, Mohammad Reza Ganjali, Morteza Hosseini, Ceren Karaman, Nevin Erk, Pau-Loke Show, Najmeh Zare, Hassan Karimi-Maleh
Summary: Graphene-based nanomaterials have shown great potential in various applications due to their remarkable properties. Functionalized graphene nanocomposites have advantages in increasing surface area and porosity, improving adsorption capacities, reducing adsorption energy barrier, and preventing agglomeration. Combining cerium structures with graphene networks has been widely investigated to enhance the properties of the composite. This research reviews the recent developments in cerium functionalized graphene derivatives and their industrial applications, providing comprehensive information on these nanonetworks. The applications of functionalized graphene derivatives are successfully summarized. This systematic review study has the potential to pave the way for scientific research in material science and various applications.
ENVIRONMENTAL RESEARCH
(2022)
Article
Chemistry, Multidisciplinary
Kou Yang, Musen Chen, Qian Wang, Sergey Grebenchuk, Siyu Chen, Xuanye Leng, Kostya S. Novoselov, Daria Andreeva
Summary: A novel 2D hydrogel with coupled electro-thermoregulation for water transport is constructed through self-assembly of hydroxypropyl cellulose (HPC) with graphene oxide (GO) and reduced GO (rGO). The hydrogel demonstrates a large swelling rate, excellent mechanical properties, and superior electrical conductivity. The ability of HPC domains to switch conformation in response to Joule heating enables the hydrogel to function as a low footprint water switcher with optical control in smart membranes.
ADVANCED FUNCTIONAL MATERIALS
(2022)
Article
Chemistry, Physical
Emre Tekay, Sinan Sen
Summary: In this study, thermally and electrically triggered polymeric composites were prepared using graphene nanoplatelets as conductive fillers. The results showed that the size of the graphene fillers played a crucial role in shaping memory performance, with larger size fillers aiding in shape fixing and smaller size fillers enhancing shape recovery ability. Additionally, the thermal stability of the composites was significantly improved with the addition of graphene fillers.
Article
Chemistry, Physical
Yuling Zhuo, Eric Prestat, Ian A. Kinloch, Mark A. Bissett
Summary: Two-dimensional materials such as graphene and MoS2 have potential applications in energy storage, but their performance is limited by restacking and poor electrical conductivity. In this study, a true composite electrode was formed by chemically modifying graphene to self-assemble with MoS2, resulting in an alternating layer structure. This composite electrode exhibited improved energy storage properties and stability.
ACS APPLIED ENERGY MATERIALS
(2022)
Article
Engineering, Electrical & Electronic
Yang Gao, Yan Xu, Songyue Liu, Xiaojian Fan, Xibin Wang, Xiaoqiang Sun, Daming Zhang
Summary: An ultra-broadband 1x2 mode switch based on cascaded Mach-Zehnder interferometer and asymmetric Y-branch is proposed, showing stable performance in converting and switching between different modes, with potential applications in wavelength-division-multiplexing & MDM complex systems.
IEEE PHOTONICS JOURNAL
(2021)
Article
Chemistry, Applied
Zixu Zhang, Rongrong Chen, Dalei Song, Jing Yu, Gaohui Sun, Qi Liu, Shihui Han, Jingyuan Liu, Hongsen Zhang, Jun Wang
Summary: A series of antifouling composite coatings based on guanidine-functionalized graphene and self-polishing boron acrylate polymer were prepared, exhibiting excellent algae anti-adhesion performance and high antibacterial rates. The tight binding of inorganic and organic compounds at the interface, as well as the exposure of guanidine-functionalized graphene on the surface, contribute to the promising antifouling capability of BAP/GNG for potential marine applications.
PROGRESS IN ORGANIC COATINGS
(2021)
Article
Polymer Science
Wenjing Wei, Vijay Kumar Thakur, Songjun Li, Iva Chianella
Summary: This study introduces a novel three-layer polymer reactor capable of simple/tandem self-controlled catalysis. The reactor's top and bottom layers contain molecularly imprinted polymers with two different catalytic sites, while the middle layer acts as a temperature-responsive switch for controlling tandem reactions. The reactor demonstrates selective tandem reactions and process control through a multi-layer polymeric structure.
Article
Polymer Science
Yuqi Xie, Jiachen Han, Tian Qin, Xuyang Ge, Xihan Wu, Lu Liu, Xubin Wu, Yunji Yi
Summary: A hybrid-integrated thermo-optic switch was designed and simulated in this study, utilizing the large thermo-optical coefficient of polymer materials. By introducing the air trench structure and optimizing the heating region's structural parameters, the power consumption was significantly reduced. This device can be applied to hybrid integration fields such as array switches and ROADMs.
Article
Engineering, Electrical & Electronic
Tao Chen, Zhangqi Dang, Zexu Liu, Zhenming Ding, Zhifang Yang, Xiaodong Zhang, Xinhong Jiang, Ziyang Zhang
Summary: A multiport thermo-optic switch based on parallel polymer waveguides and microheater array is proposed, enabling operations for Up Transfer, Isolation, and Down Transfer. By introducing refractive index perturbation and using microheaters, conditions in the waveguides can be switched locally, steering light into different paths. Experimental demonstration of a 1 x 5 switch operation was achieved.
IEEE PHOTONICS TECHNOLOGY LETTERS
(2021)
Article
Polymer Science
Yue Yang, Jiawen Lv, Baizhu Lin, Yue Cao, Yunji Yi, Daming Zhang
Summary: An all-optical switch based on graphene-assisted polymer with the E-01(x) mode is proposed, which can reduce absorption loss and achieve power consumption of 9.5 mW, propagation loss of 0.01 dB/cm, and switching time of 127 μs (rise)/125 μs (fall) in the right position. The switch shows potential for low loss and full polarization optical control applications.
Article
Engineering, Manufacturing
Xiwen Gu, Xueqin Zhang, Baowei Qiu, Yang Chen, Zhengguang Heng, Mei Liang, Huawei Zou
Summary: Micron scale GO20 similar to 30 μm sheets were modified and co-dispersed with nano scale GO200 nm in epoxy resin to enhance their dispersion. The use of ultra-thin carbon fiber technology in carbon fiber reinforced polymer composites (CFRPs) resulted in improved interlaminar and compression properties. The addition of micron scale GO20 similar to 30 μm in the composites contributed to the formation of bridges between carbon fibers, leading to significant optimization in the mechanical properties of the CFRPs. The lateral fiber bundle test, interlaminar shear strength, and compressive strength of GO200 nm + GO20 similar to 30 μm-D400/EP/CF24 mm composites showed significant improvements compared to GO20 similar to 30 μm/EP/CF24 mm composites.
COMPOSITES PART A-APPLIED SCIENCE AND MANUFACTURING
(2023)
Article
Polymer Science
Xiangyang Wang, Xiu-Zhi Tang, Xiaoping Hu, Pengfei Wang
Summary: This study investigated the influence of graphene oxide (GO) and its modified derivative on the dynamic mechanical properties of polyurethane. The incorporation of GO was found to significantly improve the failure strength of the composites, while the slightly reduced graphene oxide (SRGO) grafted with polyethyleneimine (SRGO-PEI) was beneficial in improving plastic stress and hindering crack propagation. The research provides important guidance for designing composites under high-velocity impact environments.
