Article
Chemistry, Physical
Ivan S. Sokolov, Dmitry Averyanov, Oleg E. Parfenov, Alexander N. Taldenkov, Igor A. Karateev, Andrey M. Tokmachev, Vyacheslav G. Storchak
Summary: 2D magnets show potential for unconventional quantum phases, exploration of fundamental physics of magnetism, and ultra-compact devices. By encapsulating a monolayer Eu lattice between graphene monolayers, a chemically inert van der Waals 2D ferromagnet is formed. The results expand the family of 2D magnets and establish a versatile platform for synthesis of new members by metal intercalation.
JOURNAL OF ALLOYS AND COMPOUNDS
(2021)
Article
Chemistry, Physical
Haoye Wang, Aijuan Xie, Xiang Li, Qing Wang, Wanqi Zhang, Zerui Zhu, Jianhong Wei, Duangui Chen, Yuxiang Peng, Shiping Luo
Summary: This work presents a 3D graphene sponge-based CoCu bimetallic active center organic framework with excellent electrocatalytic performance for oxygen evolution reaction. A series of electrochemical experiments demonstrated its superior catalytic activity and stability over 20000 s test.
JOURNAL OF ALLOYS AND COMPOUNDS
(2021)
Review
Chemistry, Multidisciplinary
Yumei Ren, Yuxi Xu
Summary: Three-dimensional graphene/metal-organic framework composites are gaining increasing attention in the field of energy due to their unique porous structure and properties. The combination of graphene and MOFs overcomes the limitations of MOFs' conductivity and stability, and prevents aggregation between graphene sheets. These composites, along with their derivative structures, have applications in batteries, supercapacitors, and electrocatalysis. This feature article discusses the synthesis methods, applications, challenges, and future prospects of 3DG/MOF-based composites.
CHEMICAL COMMUNICATIONS
(2023)
Article
Chemistry, Multidisciplinary
YinBo Zhu, YongChao Wang, Bao Wu, ZeZhou He, Jun Xia, HengAn Wu
Summary: The mechanical behavior of disordered graphene networks (DGNs) was studied, revealing prolonged plastic platforms in tension and shear, and special plastic damages in compression, resulting in tension-compression asymmetry. Additionally, out-of-plane topological defects and average angular defects in deformed DGNs exhibit inverse proportional scaling relationship. Ashby charts demonstrate that the mechanical properties of DGNs can surpass those of most conventional materials, reaching theoretical limits.
Review
Chemistry, Multidisciplinary
Huijuan Cui, Yibo Guo, Zhen Zhou
Summary: 3D graphene macrostructures with unique structure, large accessible surface area, and active sites have shown promising potential in electrocatalysis. This review focuses on the latest progress in the field, covering preparation methods, functional modification strategies, and detailed discussion on electrocatalytic performances. Challenges and perspectives are also presented for further exploration of excellent 3D GM-based electrocatalysts.
Article
Materials Science, Multidisciplinary
Shiva P. Poudel, Juan M. Marmolejo-Tejada, Joseph E. Roll, Martin A. Mosquera, Salvador Barraza-Lopez
Summary: Researchers have successfully enhanced the intrinsic electric dipole moment of CrI3 bilayers by rotating its constituent monolayers, resulting in a three-dimensional electric dipole moment and enhancing the magnetoelectric coupling on this accessible 2D material.
Article
Chemistry, Physical
Xiaojuan Ni, Jean-Luc Bredas
Summary: In this study, the electronic structure evolution of Zn-TEP from molecule to chain, COF, and nanotube is investigated using density functional theory calculations. It is found that the frontier molecular orbitals of Zn-TEP have wavevector-independent flat bands in all the periodic systems. The connection between the COF and nanotube is effectively captured using a zone-folding approach. Importantly, the Zn-TEP nanotube exhibits a totally flat lowest conduction band, providing a platform for exploring various many-body phenomena.
CHEMISTRY OF MATERIALS
(2022)
Article
Physics, Multidisciplinary
John Cenker, Bevin Huang, Nishchay Suri, Pearl Thijssen, Aaron Miller, Tiancheng Song, Takashi Taniguchi, Kenji Watanabe, Michael A. McGuire, Di Xiao, Xiaodong Xu
Summary: In this study, two-dimensional magnons were directly observed in atomically thin CrI3 using magneto-Raman spectroscopy, revealing optical selection rules and magnetic properties. The phonon magnon mode in monolayers exhibited strict selection rules, while the optical magnon modes in bilayers and bulk materials were influenced by layer index. Additionally, two degenerate optical magnon modes with opposite angular momentum and conjugate optical selection rules were resolved in layered antiferromagnetic states.
Article
Chemistry, Multidisciplinary
Zonglong Li, Li Sheng, Hangchao Wang, Xiaolin Wang, Mingyang Li, Yulong Xu, Hao Cui, Haitian Zhang, Hongmei Liang, Hong Xu, Xiangming He
Summary: Three-dimensional covalent organic frameworks (3D-COFs) are designable porous materials with unique structural characteristics and porous features. This study introduces a new 3D-COF with the ceq topology, utilizing a D-3h-symmetric triangular prism vertex and a planar triangular linker. The as-synthesized COF shows a twofold-interpenetrated structure with a Brunauer-Emmett-Teller surface area of 1148.6 m(2) g(-1) and efficient absorption of CO2, CH4, and H2. This work provides new building units and approaches for further exploration of 3D-COFs.
JOURNAL OF THE AMERICAN CHEMICAL SOCIETY
(2021)
Article
Chemistry, Multidisciplinary
Jie Li, Ruqian Wu
Summary: In this study, a series of 2D materials based on endohedral fullerenes were designed, integrating different functions such as ferroelectricity, multiple magnetic phases, and topologically protected edge states. This provides a new strategy for synthesizing novel 2D materials using fullerenes as building blocks.
Article
Engineering, Manufacturing
Muhammad Wajahat, Sanghyeon Lee, Jung Hyun Kim, Jinhyuck Ahn, Ho Hyung Sim, Je Hyeong Kim, Jongcheon Bae, Seong Hyeon Kim, Jaeyeon Pyo, Seung Kwon Seol
Summary: Functionalized graphene with inorganic nanomaterials has enhanced electrical and electrochemical properties. 3D printing is used to fabricate silver nanoparticle-decorated graphene microarchitectures, showing potential applications in flexible electronic devices.
ADDITIVE MANUFACTURING
(2022)
Article
Chemistry, Multidisciplinary
Yuanyuan Li, Nan Chen, Zengling Li, Huibo Shao, Xiaotong Sun, Feng Liu, Xiaoting Liu, Qiang Guo, Liangti Qu
Summary: The Phoenix Nirvana-like 3D graphene (NvG) designed with a repeated rebirth strategy exhibits superior performance upgrades in terms of density, porosity, electrical conductivity, mechanical strength, and fast infiltration behavior, making it ideal for capacitive deionization (CDI). As a CDI electrode, NvG shows extremely high volumetric capacity and salt absorption capacity, along with significantly lower power consumption compared to traditional 3D graphene (3DG). The overall performance enhancement achieved through this innovative manufacturing strategy is expected to drive the development of new carbon materials.
ADVANCED MATERIALS
(2021)
Article
Chemistry, Inorganic & Nuclear
Wen-Yuan Wu, Tie-Huan Tang, Yi Li, Shuang Xu
Summary: An unknown manganese(II) oxalate complex with a novel three-dimensional structure was discovered, showing versatile bridging modes of the oxalate ligand. The thermal and magnetic behaviors of this complex were studied and compared with four other manganese(II) oxalates.
DALTON TRANSACTIONS
(2021)
Article
Chemistry, Physical
Xingtao Zhao, Yakun Guo, Zekun Jing, Xue Liu, Ruidong Liu, Ran Tao, Tianyu Cai, Yingjun Li, Yuanlin Zhou, Maobing Shuai
Summary: In this study, formable graphene aerogel hydrogen getters were prepared by integrating alkyne-containing molecules into palladium-loaded three-dimensional layered porous graphene aerogel. The results showed that the Pd-GA/DEB composite materials had a high hydrogen absorption capacity in reducing reactive hydrogen gas.
INTERNATIONAL JOURNAL OF HYDROGEN ENERGY
(2022)
Article
Chemistry, Physical
Hui Liu, Heng Wang, Zhisheng Peng, Jiyou Jin, Zhongpu Wang, Kang Peng, Wenxiang Wang, Yushi Xu, Yu Wang, Zheng Wei, Ding Zhang, Yong Jun Li, Weiguo Chu, Lianfeng Sun
Summary: In this work, a gate-tunable Hall resistance (R-xy) is reported in edge-bonded monolayer graphene without an external magnetic field. The Hall resistance consists of contributions from both the ordinary Hall effect and the anomalous Hall effect (R-AHE). At a temperature of 2 K, plateaus of R-xy and R-AHE at 0.94h/3e(2) and 0.88h/3e(2) respectively are observed, indicating the quantum version of the AHE. At a temperature of 300 K, R-xy exhibits a positive, giant magnetoresistance of about 177%, while R-AHE remains at a value of about 400 Ω. These findings suggest the presence of a long-range ferromagnetic order in pristine graphene, which could have applications in pure carbon-based spintronics.
NANOSCALE HORIZONS
(2023)
