Article
Multidisciplinary Sciences
Meihui Wang, Ming Huang, Da Luo, Yunqing Li, Myeonggi Choe, Won Kyung Seong, Minhyeok Kim, Sunghwan Jin, Mengran Wang, Shahana Chatterjee, Youngwoo Kwon, Zonghoon Lee, Rodney S. Ruoff
Summary: Restricting the initial growth temperatures used for chemical vapour deposition of graphene on metal foils produces optimum conditions for growing large areas of fold-free, single-crystal graphene, which exhibit highly uniform transport properties.
Article
Materials Science, Coatings & Films
Pierre Vinchon, Xavier Glad, Germain Robert Bigras, Andranik Sarkissian, Richard Martel, Luc Stafford
Summary: The study showed that using diborane-containing plasmas is an efficient method for boron substitutional incorporation in graphene, with minimal hydrogenation of domains.
JOURNAL OF VACUUM SCIENCE & TECHNOLOGY A
(2021)
Article
Physics, Multidisciplinary
J. N. Teixeira Rabelo
Summary: This paper calculates the lattice relaxation, change of atomic vibrations, and excess energy near the armchair and zigzag edges of a flat graphene monolayer using the unsymmetrized self-consistent field theory of strongly anharmonic solids in the lowest order of anharmonicity. A comparison is made between these properties in each type of edge.
Article
Chemistry, Physical
Yuanzheng Li, Jiaxu Yan, Jinping Chen, Tong Yu, Hang Ren, Xiuling Liu, Weizhen Liu, Guochun Yang, Chunxiang Xu, Qiaoliang Bao, Yichun Liu, Haiyang Xu
Summary: Efficient photoluminescence enhancement in monolayer WS2 induced by laser irradiation is achieved by a synergistic effect of physisorption and chemisorption, where physisorption dominates with more than 74% contribution. Understanding the adsorption mechanism in laser-irradiated TMDs may lead to potential applications in patterned light source, effective photosensor, and ultrathin optical memory.
Article
Chemistry, Physical
Amanda Dumi, Shiv Upadhyay, Leonardo Bernasconi, Hyeondeok Shin, Anouar Benali, Kenneth D. Jordan
Summary: This study uses DFT and DMC methods to calculate the binding energy of a H atom on the graphene surface, and compares the results and influencing factors of the two methods. It is found that the accuracy of the DFT results can be improved by using the HSE functional, and significant differences in charge distributions between the PBE and DMC methods are revealed.
JOURNAL OF CHEMICAL PHYSICS
(2022)
Review
Biochemistry & Molecular Biology
Ke Wu, Di Wu, Li Zhu, Yi Wu
Summary: Graphene has been used to improve frozen sample preparation, effectively preventing particles from adsorbing to the air-water interface, and enhancing the dispersion, adsorbed number, and orientation preference of frozen particles in the ice layer. Its excellent properties and thinner thickness can significantly reduce background noise, allowing high-resolution three-dimensional reconstructions.
INTERNATIONAL JOURNAL OF MOLECULAR SCIENCES
(2021)
Article
Chemistry, Physical
Hui Yan, Meng Zhang, Shuang Wang, Heng Li, Sandor Kunsagi-Mate, Shougen Yin
Summary: Graphene's exceptional mechanical flexibility and strength make it an ideal platform for strain engineering, allowing for versatile modulation and enhancement of its optical properties. By transferring monolayer graphene onto monodisperse Au nanoparticles, both uniaxial and biaxial strain can be achieved with negligible charge doping. This study examines the phonon frequency and crystallographic orientation of graphene wrinkles under strain, showing significant red shifts in the G and 2D peaks under tensile strain.
APPLIED SURFACE SCIENCE
(2023)
Article
Green & Sustainable Science & Technology
D. O. Odey, H. O. Edet, H. Louis, T. E. Gber, A. D. Nwagu, S. A. Adalikwu, A. S. Adeyinka
Summary: In this study, the adsorption of COCl2 gas on metal-doped graphene nanoflakes and heteroatom-decorated graphene nanoflakes (Ni, B, N, and P) was investigated using density functional theory. The results show that both the metal-doped and decorated surfaces can adsorb COCl2 gas, with higher adsorption energy observed on the metal-doped graphene. Quantum theory and non-covalent interaction analysis confirm that the interaction between COCl2 and the model surfaces is mainly non-covalent. Therefore, the studied graphene nanoflake models can be considered as effective gas-sensing materials.
MATERIALS TODAY SUSTAINABILITY
(2023)
Article
Chemistry, Multidisciplinary
Jinhua Wang, Gyaneshwar P. Srivastava
Summary: The study examined the structural stability and electronic properties of lateral monolayer transition metal chalcogenide superlattice nanoribbons, focusing on the effects of varying width, periodicity, cationic and anionic elements, biaxial strain, and edge passivation on the band gap. Various combinations of elements for passivation were found to affect the energy band gap, with differences in band gap states observed between edge and inside vacancies. The electronic orbitals around Mo vacancies were found to play a crucial role in determining band gap properties.
Article
Materials Science, Multidisciplinary
Yi Liu, Xiaolan Yang, Khamis Masoud Khamis
Summary: In this study, the stability, band structures, and absorption spectrum of Co-doped graphene-like ZnO monolayer systems were investigated by the first-principles plane-wave ultra-soft-pseudopotential method. The results showed that the Co-doped systems were stable and exhibited a narrowing of the band gap with increasing doping concentration and strain. The estimated Curie temperature was approximately 695 K. Covalent bond strength increased, while ionic bond strength decreased with higher Co doping concentration. The absorption spectrum exhibited a red-shift due to Co doping, with a more significant shift at higher doping levels, and a blue-shift with increasing strain. These findings may contribute to the design of novel gZnO-based spintronic materials and optical devices.
RESULTS IN PHYSICS
(2023)
Article
Materials Science, Multidisciplinary
Mei Bao Lee, Chiew Tin Lee, William Woei Fong Chong, King Jye Wong
Summary: This study investigates the effect of post-thermal annealing on the conductivity and surface roughness of commercially available chemical vapour deposition (CVD) monolayer graphene films on quartz substrates. The results show that annealing the films at 400 degrees C leads to a remarkable reduction in sheet resistance by 58.1% and surface roughness by 33.3%. The analysis using Raman spectroscopy indicates that the reduction in sheet resistance is attributed to increased charge density from doping effects, while the reduction in surface roughness is attributed to thermal-induced mechanical biaxial tensile strain.
JOURNAL OF MATERIALS SCIENCE
(2023)
Article
Chemistry, Multidisciplinary
Jing Liu, Pei Li, Shen Xu, Yangsu Xie, Qin Wang, Lei Ma
Summary: This study investigates the thermal conductivity variation with temperature of giant-scale graphene using the differential transient electrothermal technique. The results show that the thermal conductivity of graphene decreases as the temperature decreases, and this can be partly explained by compressive strain buildup due to thermal expansion mismatch.
Article
Polymer Science
He Zhang, Hongfei Shen, Zirui Wang, Junkan Yue, Runlai Li, Fangzhu Qing, Xuesong Li
Summary: This study presents a minute-level-fast transfer method for monolayer graphene by combining chemical etching and mechanical exfoliation. The prepared monolayer graphene/polymer composite membrane is ultrathin, conductive, highly transparent, and flexible, demonstrating its potential application as an ultrathin, efficient, and conformable Joule heating membrane-form device.
Article
Chemistry, Analytical
Sho Narafu, Yoshinori Takashima, Osamu Niwa, Tatsuhiko Yajima, Yuko Ueno
Summary: A monolayer graphene electrode modified with beta-cyclodextrin was prepared, and the effects of the modification on the redox reactions of water-insoluble ferrocene were investigated. The modification significantly increased the peak current of the reduction reaction by forming small water domains and oil-water interfaces on the graphene surface.
JOURNAL OF ELECTROANALYTICAL CHEMISTRY
(2022)
Article
Nanoscience & Nanotechnology
Salvatore Ethan Panasci, Emanuela Schiliro, Giuseppe Greco, Marco Cannas, Franco M. Gelardi, Simonpietro Agnello, Fabrizio Roccaforte, Filippo Giannazzo
Summary: This study systematically investigated the morphology, strain, doping, and electrical properties of large area 1L MoS2 exfoliated on ultraflat Au films and transferred to an insulating Al2O3 substrate. The results showed a moderate tensile strain and p-type doping of 1L MoS2 on Au, while compressive strain and n-type doping on Al2O3/Si. These findings deepen the understanding of the Au-assisted exfoliation mechanism and its potential applications for novel devices and artificial vdW heterostructures.
ACS APPLIED MATERIALS & INTERFACES
(2021)
Article
Energy & Fuels
Haiqiang Liu, Yi Jiang, Xinghua Tan, Jiankun Chen, Yanjun Guo, Hanfu Wang, Weiguo Chu
Article
Chemistry, Multidisciplinary
Bin Zhang, Yan Zhang, Zheming Wang, Zengqiang Gao, Deliang Yang, Dongwei Wang, Yanjun Guo, Daoben Zhu
Article
Materials Science, Multidisciplinary
Feiyan Dong, Yanjun Guo, Peng Xu, Xiong Yin, Yuangang Li, Meng He
SCIENCE CHINA-MATERIALS
(2017)
Article
Chemistry, Physical
Yanfang Wang, Yanjun Guo, Wentao Chen, Qing Luo, Wenli Lu, Peng Xu, Dongliang Chen, Xiong Yin, Meng He
APPLIED SURFACE SCIENCE
(2018)
Article
Materials Science, Multidisciplinary
Zhongzhong Xu, Xiong Yin, Yanjun Guo, Yuan Pu, Meng He
JOURNAL OF MATERIALS CHEMISTRY C
(2018)
Article
Engineering, Multidisciplinary
Hanfu Wang, Fanglong Yang, Yanjun Guo, Kaiwu Peng, Dongwei Wang, Weiguo Chu, Shuqi Zheng
Article
Chemistry, Multidisciplinary
Yi Tian, Hanfu Wang, Lanqin Yan, Xianfeng Zhang, Attia Falak, Yanjun Guo, Peipei Chen, Fengliang Dong, Lianfeng Sun, Weiguo Chu
Article
Chemistry, Multidisciplinary
Gang Wang, Sung-Kon Kim, Michael Cai Wang, Tianshu Zhai, Siddhanth Munukutla, Gregory S. Girolami, Peter J. Sempsrott, SungWoo Nam, Paul V. Braun, Joseph W. Lyding
Article
Chemistry, Multidisciplinary
Jing-Hao Fu, Zhen Zhong, Dan Xie, Yan-Jun Guo, De-Xuan Kong, Zhong-Xing Zhao, Zhen-Xia Zhao, Min Li
ANGEWANDTE CHEMIE-INTERNATIONAL EDITION
(2020)
Article
Chemistry, Physical
Jin Gu Kang, Gang Wang, Sung-Kon Kim
Article
Geosciences, Multidisciplinary
Ai-Cheng Zhang, Qin-Ting Jiang, Naotaka Tomioka, Yan-Jun Guo, Jia-Ni Chen, Yang Li, Naoya Sakamoto, Hisayoshi Yurimoto
Summary: The presence of tissintite, Si-rich corundum, and coesite in strongly shock-lithified lunar meteorites suggests a shock pressure of 4-8 GPa and a temperature constraint of around 2300K, providing significant insights into the behavior of volatile elements and remanent magnetization records during shock-lithification.
GEOPHYSICAL RESEARCH LETTERS
(2021)
Article
Nanoscience & Nanotechnology
Caixiang Zhao, Junfeng Shu, Jiaqi Fang, Shuangxia Luo, Yanjun Guo, Peng Xu, Ji Feng, Meng He, Zhan'ao Tan, Xiong Yin, Leyu Wang
Summary: Li-doped hollow titania nanospheres (Li-HTS) were prepared and used to modify the SnO2 ETL/perovskite interfaces of planar PSCs for the first time. The Li-HTS-modified PSC achieved higher PCE and improved stability.
ACS APPLIED MATERIALS & INTERFACES
(2023)
Article
Materials Science, Multidisciplinary
Hui Wang, Rui Jiang, Meili Sun, Xiong Yin, Yanjun Guo, Meng He, Leyu Wang
JOURNAL OF MATERIALS CHEMISTRY C
(2019)
Article
Chemistry, Inorganic & Nuclear
Lee Martin, Alexander L. Morritt, Jordan R. Lopez, Yasuhiro Nakazawa, Hiroki Akutsu, Shusaku Imajo, Yoshihiko Ihara, Bin Zhang, Yan Zhang, Yanjun Guo
DALTON TRANSACTIONS
(2017)
Article
Nanoscience & Nanotechnology
Yi Jiang, Haiqiang Liu, Xinghua Tan, Limin Guo, Jiangtao Zhang, Shengnan Liu, Yanjun Guo, Juan Zhang, Hanfu Wang, Weiguo Chu
ACS APPLIED MATERIALS & INTERFACES
(2017)
Article
Chemistry, Multidisciplinary
Laetitia Bardet, Herve Roussel, Stefano Saroglia, Masoud Akbari, David Munoz-Rojas, Carmen Jimenez, Aurore Denneulin, Daniel Bellet
Summary: The thermal instability of silver nanowires leads to increased electrical resistance in AgNW networks. Understanding the relationship between structural and electrical properties of AgNW networks is crucial for their integration as transparent electrodes in flexible optoelectronics. In situ X-ray diffraction measurements were used to study the crystallographic evolution of Ag-specific Bragg peaks during thermal ramping, revealing differences in thermal and structural transitions between bare and SnO2-coated AgNW networks.
Article
Chemistry, Multidisciplinary
Nathalia Cancino-Fuentes, Arnau Manasanch, Joana Covelo, Alex Suarez-Perez, Enrique Fernandez, Stratis Matsoukis, Christoph Guger, Xavi Illa, Anton Guimera-Brunet, Maria V. Sanchez-Vives
Summary: This study provides a comprehensive characterization of graphene-based solution-gated field-effect transistors (gSGFETs) for brain recordings, highlighting their potential clinical applications.
Article
Chemistry, Multidisciplinary
Sikandar Aftab, Hailiang Liu, Dhanasekaran Vikraman, Sajjad Hussain, Jungwon Kang, Abdullah A. Al-Kahtani
Summary: This study examines the effects of hybrid nanoparticles made of NiO@rGO and NiO@CNT on the active layers of polymer solar cells and X-ray photodetectors. The findings show that these hybrid nanoparticles can enhance the charge carrier capacities and exciton dissociation properties of the active layers. Among the tested configurations, the NiO@CNT device demonstrates superior performance in converting sunlight into electricity, and achieves the best sensitivity for X-ray detection.
Article
Chemistry, Multidisciplinary
Hyo Jung Shin, Seung Gyu Choi, Fengrui Qu, Min-Hee Yi, Choong-Hyun Lee, Sang Ryong Kim, Hyeong-Geug Kim, Jaewon Beom, Yoonyoung Yi, Do Kyung Kim, Eun-Hye Joe, Hee-Jung Song, Yonghyun Kim, Dong Woon Kim
Summary: This study investigates the role of SOX9 in reactive astrocytes following ischemic brain damage using a PLGA nanoparticle plasmid delivery system. The results demonstrate that PLGA nanoparticles can reduce ischemia-induced neurological deficits and infarct volume, providing a potential opportunity for stroke treatment.
Article
Chemistry, Multidisciplinary
Anurag Chaudhury, Koushik Debnath, Nikhil R. Jana, Jaydeep K. Basu
Summary: The study investigates the interaction between nanoparticles and cell membranes, and identifies key parameters, including charge, crowding, and membrane fluidity, that determine the adsorbed concentration and unbinding transition of nanoparticles.
Article
Chemistry, Multidisciplinary
Sina Sadeghi, Fazel Bateni, Taekhoon Kim, Dae Yong Son, Jeffrey A. Bennett, Negin Orouji, Venkat S. Punati, Christine Stark, Teagan D. Cerra, Rami Awad, Fernando Delgado-Licona, Jinge Xu, Nikolai Mukhin, Hannah Dickerson, Kristofer G. Reyes, Milad Abolhasani
Summary: In this study, an autonomous approach for the development of lead-free metal halide perovskite nanocrystals is presented, which integrates a modular microfluidic platform with machine learning-assisted synthesis modeling. This approach enables rapid and optimized synthesis of copper-based lead-free nanocrystals.
Article
Chemistry, Multidisciplinary
Zahir Abbas, Nissar Hussain, Surender Kumar, Shaikh M. Mobin
Summary: The rational construction of free-standing and flexible electrodes for electrochemical energy storage devices is an emerging research focus. In this study, a redox-active metal-organic framework (MOF) was prepared on carbon nanofibers using an in situ approach, resulting in a flexible electrode with high redox-active behavior and unique properties such as high flexibility and lightweight. The prepared electrode showed excellent cyclic retention and rate capability in supercapacitor applications. Additionally, it could be used as a freestanding electrode in flexible devices at different bending angles.
Article
Chemistry, Multidisciplinary
Lishan Zhang, Xiaoting Zhang, Hui Ran, Ze Chen, Yicheng Ye, Jiamiao Jiang, Ziwei Hu, Miral Azechi, Fei Peng, Hao Tian, Zhili Xu, Yingfeng Tu
Summary: Photodynamic therapy (PDT) is a promising local treatment modality in cancer therapy, but its therapeutic efficacy is restricted by ineffective delivery of photosensitizers and tumor hypoxia. In this study, a phototactic Chlorella-based near-infrared (NIR) driven green affording-oxygen microrobot system was developed for enhanced PDT. The system exhibited desirable phototaxis and continuous oxygen generation, leading to the inhibition of tumor growth in mice. This study demonstrates the potential of using a light-driven green affording-oxygen microrobot to enhance photodynamic therapy.
Article
Chemistry, Multidisciplinary
Yujin Li, Jing Xu, Xinqi Luo, Futing Wang, Zhong Dong, Ke-Jing Huang, Chengjie Hu, Mengyi Hou, Ren Cai
Summary: In this study, hollow heterostructured materials were constructed using an innovative template-engaged method as cathodes for zinc-ion batteries. The materials exhibited fast Zn2+ transport channels, improved electrical conductivity, and controlled volume expansion during cycling. The designed structure allowed for an admirable reversible capacity and high coulombic efficiency.
Article
Chemistry, Multidisciplinary
Paritosh Mahato, Shashi Shekhar, Rahul Yadav, Saptarshi Mukherjee
Summary: This study comprehensively elucidates the role of the core and electrostatic surface of metal nanoclusters in catalytic reduction reactions. The electrostatic surface dramatically modulates the reactivity of metal nanoclusters.
Article
Chemistry, Multidisciplinary
Pei Liu, Mengdi Liang, Zhengwei Liu, Haiyu Long, Han Cheng, Jiahe Su, Zhongbiao Tan, Xuewen He, Min Sun, Xiangqian Li, Shuai He
Summary: This study demonstrates a simple and environmentally-friendly method for the synthesis of zinc oxide nanozymes (ZnO NZs) using wasted hop extract (WHE). The WHE-ZnO NZs exhibit exceptional peroxidase-like activity and serve as effective catalysts for the oxidation of 3,3,5,5-tetramethylbenzidine (TMB) in the presence of hydrogen peroxide (H2O2). In addition, a straightforward colorimetric technique for detecting both H2O2 and glucose was developed using the WHE-ZnO NZs as peroxidase-like catalysts.
Article
Chemistry, Multidisciplinary
Hyunkyu Oh, Young Jun Lee, Eun Ji Kim, Jinseok Park, Hee-Eun Kim, Hyunsoo Lee, Hyunjoo Lee, Bumjoon J. Kim
Summary: Mesoporous carbon particles have unique structural properties that make them suitable as support materials for catalytic applications. This study investigates the impact of channel nanostructures on the catalytic activity of porous carbon particles (PCPs) by fabricating PCPs with controlled channel exposure on the carbon surface. The results show that PCPs with highly open channel nanostructures exhibit significantly higher catalytic activity compared to those with closed channel nanostructures.
Article
Chemistry, Multidisciplinary
Yunjie Lu, Zhaohui Li, Zewei Li, Shihao Zhou, Ning Zhang, Jianming Zhang, Lu Zong
Summary: A tough, long-lasting adhesive and highly conductive nanocomposite hydrogel (PACPH) was fabricated via the synergy of interfacial entanglement and adhesion group densification. PACPH possesses excellent mechanical properties, interfacial adhesion strength, and conductivity, making it a promising material for long-term monitoring of human activities and electrocardiogram signals.
Article
Chemistry, Multidisciplinary
Zichao Wei, Audrey Vandergriff, Chung-Hao Liu, Maham Liaqat, Mu-Ping Nieh, Yu Lei, Jie He
Summary: We have developed a simple method to prepare polymer-grafted plasmonic metal nanoparticles with pH-responsive surface-enhanced Raman scattering. By using pH-responsive polymers as ligands, the aggregation of nanoparticles can be controlled, leading to enhanced SERS. The pH-responsive polymer-grafted nanoparticles show high reproducibility and sensitivity in solution, providing a novel approach for SERS without the need for sample pre-concentration.
Article
Chemistry, Multidisciplinary
Melis Ozge Alas Colak, Ahmet Gungor, Merve Buldu Akturk, Emre Erdem, Rukan Genc
Summary: This research investigates the effect of functionalizing carbon dots with hydroxyl polymers on their performance as electrode materials in a supercapacitor. The results show that the functionalized carbon dots exhibit excellent electrochemical performance and improved stability.