Article
Chemistry, Multidisciplinary
Issam Boukhoubza, Elena Matei, Anouar Jorio, Monica Enculescu, Ionut Enculescu
Summary: ZnO nanostructures were synthesized using electrochemical methods and their properties were investigated under different potentials. It was found that using a graphene/Cu electrode led to the formation of ZnO nanowires with smaller diameter and higher emission intensity compared to deposition directly on copper surface.
Article
Multidisciplinary Sciences
N. F. Santos, J. Rodrigues, S. O. Pereira, A. J. S. Fernandes, T. Monteiro, F. M. Costa
Summary: This study successfully produced LIG/ZnO nanocomposites using the most suitable electrodeposition parameters, which more than doubled the electrode capacitance compared to bare LIG in 1 M KCl. The composites also maintained long-term cycle stability, low ohmic losses, and swift electron transfer, making them promising for various applications such as supercapacitors, electrochemical/optical biosensors, and photocatalytic/photoelectrochemical devices.
SCIENTIFIC REPORTS
(2021)
Article
Chemistry, Multidisciplinary
Quanfeng He, Lanping Zeng, Lianhuan Han, Matthew M. Sartin, Juan Peng, Jian-Feng Li, Alexander Oleinick, Irina Svir, Christian Amatore, Zhong-Qun Tian, Dongping Zhan
Summary: Studies have shown that the adsorption of atomic hydrogen on single layer graphene can effectively store hydrogen and is suitable for solutions involving hydrogen fuel cells for vehicles. Utilizing a Pt-electrocatalyzed spillover-surface diffusion-chemisorption mechanism, hydrogenation of graphene can be carried out under mild conditions, demonstrating high storage capacity and stability.
JOURNAL OF THE AMERICAN CHEMICAL SOCIETY
(2021)
Article
Materials Science, Ceramics
D. Sudha, E. Ranjith Kumar, S. Shanjitha, Alaa M. Munshi, Gamil A. A. Al-Hazmi, Nashwa M. El-Metwaly, S. Jone Kirubavathy
Summary: A simple and cost-effective co-precipitation method was used to prepare ZnO nanoparticles from a metal organic framework, which were then blended with graphene oxide (GO) to create the ZnO-GO nanocomposite. The physicochemical properties, structural behavior, functional groups, and optical properties of the nanoparticles and nanocomposite were analyzed through various techniques including XRD, FT-IR, UV-vis spectroscopy, FESEM, and EDX. Cyclic voltammetry was also employed to study the redox behavior of the ZnO and ZnO-GO composites.
CERAMICS INTERNATIONAL
(2023)
Article
Nanoscience & Nanotechnology
Sanjit Saha, Pritishma Lakhe, Matthew J. Mason, Bryan J. Coleman, Kailash Arole, Xiaofei Zhao, Sergey Yakovlev, Sundararajan Uppili, Micah J. Green, Rohan A. Hule
Summary: Petroleum coke can serve as a precursor for graphene production, offering a sustainable and environmentally friendly alternative to traditional uses. Electrochemical exfoliation is used to produce graphene nanosheets from petroleum coke, separating the final product from unreacted material through a two-step centrifuging process. This innovative approach has the potential to create value-added nanomaterials in the petroleum industry and reduce emissions by utilizing low-value industrial streams.
NPJ 2D MATERIALS AND APPLICATIONS
(2021)
Article
Chemistry, Physical
Yunfu Liu, Guohui Liu
Summary: ZnO/graphene nanocomposites were prepared through a two-step process and exhibited high specific capacitance and long-term stability.
Article
Chemistry, Multidisciplinary
Sherin Rison, Rijo Rajeev, Vinay S. Bhat, Agnus T. Mathews, Anitha Varghese, Gurumurthy Hegde
Summary: Electrochemically deposited ZnO nanoparticles on a pencil graphite electrode coated with graphene provide a highly conductive and selective electrochemical sensing electrode for cortisol estimation. Various spectroscopic and microscopic techniques were used for surface morphological analysis, while XRD and FTIR were employed for structural characterization. The DPV analysis showed a linear range of 5 x 10(-10) M - 115 x 10(-10) M with a low limit of detection value of 0.15 nM, demonstrating excellent functionality for salivary cortisol determination at low concentrations.
Article
Chemistry, Multidisciplinary
Jian Sheng, Zhen Han, Guodong Jia, Sheng Zhu, Yifan Xu, Xinrui Zhang, Yixi Yao, Yan Li
Summary: This work synthesizes a covalently bonded graphene/CNT (G/CNT) structure by chemical vapor deposition, in which grapheme sheets are grown on the defects of CNT sidewalls. The resulting branch-leaf structure of G/CNT exhibits excellent anti-agglomeration properties and enhanced comprehensive properties such as large specific surface area, excellent thermal stability, and high electrical conductivity. Furthermore, the microwave absorption properties of G/CNT are significantly improved compared to CNTs, making this hybrid material a potential candidate for high-performance applications.
ADVANCED FUNCTIONAL MATERIALS
(2023)
Article
Chemistry, Multidisciplinary
Jian Sheng, Zhen Han, Guodong Jia, Sheng Zhu, Yifan Xu, Xinrui Zhang, Yixi Yao, Yan Li
Summary: This work reports the preparation of a covalently bonded graphene/CNT structure using a normal chemical vapor deposition method. The graphene leaves restrict the sliding and re-stacking of CNTs, resulting in excellent anti-agglomeration properties. The covalently bonded structure and high graphitization degree significantly enhance the comprehensive properties of the hybrid material.
ADVANCED FUNCTIONAL MATERIALS
(2023)
Review
Chemistry, Multidisciplinary
Santa Islam, Syed Shaheen Shah, Shamsun Naher, Muhammad Ali Ehsan, Md. Abdul Aziz, A. J. Saleh Ahammad
Summary: Dopamine serves as an important neurotransmitter in the central nervous system, influencing cognition, emotions, and responses in humans. Researchers are focusing on detecting dopamine in blood serum, utilizing electrochemical sensing techniques to address the coexistence of other materials. Modifications of bare electrodes with carbonaceous materials like graphene are being explored for improved electrochemical detection of dopamine.
CHEMISTRY-AN ASIAN JOURNAL
(2021)
Article
Chemistry, Physical
Maofan Zhou, Xuefei Xu, Gengping Wan, Pengpeng Mou, Shengjie Teng, Guizhen Wang
Summary: In this study, we fabricated ZnO/AC/Graphene hybrid films as multifunctional materials for heat conduction and microwave absorption. The films showed excellent performance in terms of reflection loss and absorption bandwidth. The absorption frequency could be adjusted by changing the ZnO/AC. The results of this work provide a novel strategy for the design of functional materials for heat-conduction microwave absorption applications.
Article
Chemistry, Multidisciplinary
Qi Qin, Jing Chen, Changze Wu, Yixue Wang, Yunan Li, Meng Song
Summary: Novel carbon nanostructures, carbon nanobuds and nanoballs, have been successfully synthesized on the surface of graphene using the electrochemical method. Under a certain potential, carbon nanobuds are grown in situ on the surface of graphene, and with the increase of potential, these nanobuds grow into nanoballs and exfoliate from the graphene surface. Graphene undergoes oxidation at higher potentials, resulting in the formation of graphene oxide fragments.
Article
Chemistry, Physical
J. I. Paez-Ornelas, H. N. Fernandez-Escamilla, H. A. Borbon-Nunez, H. Tiznado, Noboru Takeuchi, J. Guerrero-Sanchez
Summary: The study investigates the atomic layer deposition of ZnO/CNT hybrid inorganic structures, showing the chemical activation of CNTs with a carboxylic acid, followed by the formation of ZnO using DEZ and water as precursors. It highlights the energy barriers and ligand-exchange mechanisms during the deposition process, emphasizing the importance of the right functionalization agent and the role of the oxidizing agent in lowering energy barriers.
PHYSICAL CHEMISTRY CHEMICAL PHYSICS
(2021)
Article
Chemistry, Physical
Somayeh F. F. Rastegar, Radim Pilar, Jaroslava Moravkova, Galina Sadovska, Vasile I. I. Parvulescu, Jana Pastvova, Jan Plsek, Dalibor Kaucky, Nikola Kostkova, Petr Sazama
Summary: The concentration and dispersion of metal clusters in metal-supported catalysts are essential for their performance. In this study, a novel Pt/Y-carbon catalyst with a defined 3D porous structure and very high concentrations of well-dispersed Pt nanoparticles was prepared. This catalyst showed high specific activity in the hydrogenation of benzene to cyclohexane, with the productivity of the most active catalyst reaching 1.06 x 10(-3) mol g(cat)(-1) s(-1).
CATALYSIS SCIENCE & TECHNOLOGY
(2023)
Article
Chemistry, Multidisciplinary
S. Rai, R. Bhujel, M. Khadka, R. L. Chetry, B. P. Swain, J. Biswas
Summary: In this study, ZnO/reduced graphene oxide (ZnG) nanohybrid was successfully fabricated using a non-hazardous material, ascorbic acid. The nanohybrid exhibited excellent morphology, structure, and performance, with a specific capacitance value of 345 Fg(-1) and good capacitance retention after 1,000 cycles in an electrolyte of 0.5 M H2SO4.
MATERIALS TODAY CHEMISTRY
(2021)
Article
Materials Science, Multidisciplinary
Byung-Sung Kim, Jong Woon Lee, Yamujin Jang, Soon Hyung Choi, Seung Nam Cha, Jung Inn Sohn, Jong Min Kim, Won-Jae Joo, Sungwoo Hwang, Dongmok Whang
Article
Chemistry, Physical
Jae-Hyun Lee, Eun-Kyung Lee, Seog-Gyun Kang, Su-Ho Jung, Seok-Kyun Son, Woo Hyun Nam, Tae-Hoon Kim, Byong Lyong Choi, Dongmok Whang
APPLIED SURFACE SCIENCE
(2018)
Article
Nanoscience & Nanotechnology
Young-Min Seo, Hye-Jin Cho, Hyeon-Sik Jang, Wonseok Jang, Jae-Young Lim, Yamujin Jang, Taejun Gu, Jae-Young Choi, Dongmok Whang
ADVANCED ELECTRONIC MATERIALS
(2018)
Article
Materials Science, Multidisciplinary
Sung-Hoon Kim, Hong-Kyu Kim, Jong-Hyun Seo, Dong-Mok Whang, Jae-Pyoung Ahn, Jae-Chul Lee
Article
Chemistry, Multidisciplinary
Tian-Zi Shen, Seung-Ho Hong, Jae-Hyun Lee, Seog-Gyun Kang, Bomi Lee, Dongmok Whang, Jang-Kun Song
ADVANCED MATERIALS
(2018)
Article
Electrochemistry
Sun-Hwak Woo, Soo Jeong Choi, Jin-Hwan Park, Won-Sub Yoon, Sung Woo Hwang, Dongmok Whang
JOURNAL OF THE ELECTROCHEMICAL SOCIETY
(2013)
Article
Chemistry, Multidisciplinary
Jae-Hyun Lee, Seog-Gyun Kang, Hyeon-Sik Jang, Ji-Yun Moon, Dongmok Whang
ADVANCED MATERIALS
(2019)
Article
Materials Science, Multidisciplinary
Seh-Yoon Lim, Wonseok Jang, Soyeong Yun, Won-Sub Yoon, Jae-Young Choi, Dongmok Whang
MATERIALS RESEARCH BULLETIN
(2019)
Article
Chemistry, Multidisciplinary
Ji-Yun Moon, Seung-Il Kim, Seok-Kyun Son, Seog-Gyun Kang, Jae-Young Lim, Dong Kyu Lee, Byungmin Ahn, Dongmok Whang, Hak Ki Yu, Jae-Hyun Lee
ADVANCED MATERIALS INTERFACES
(2019)
Article
Physics, Applied
Bo Hou, Su-Ho Jung, Jingchao Zhang, Yang Hong, Byung-Sung Kim, Jung Inn Sohn, Eun Kyung Lee, Byoung Lyong Choi, Dongmok Whang, SeungNam Cha, Jong Min Kim
APPLIED PHYSICS LETTERS
(2019)
Article
Chemistry, Multidisciplinary
Seongsoo Lee, Wonseok Jang, Mansu Kim, Jae Eun Shin, Ho Bum Park, Namgee Jung, Dongmok Whang
Article
Materials Science, Multidisciplinary
Sung-Hoon Kim, Jun-Hyoung Park, Hong-Kyu Kim, Jae-Pyoung Ahn, Dong-Mok Whang, Jae-Chul Lee
Article
Nanoscience & Nanotechnology
Jihoon Kim, A. Venkatesan, Nhat Anh Nguyen Phan, Yewon Kim, Hanul Kim, Dongmok Whang, Gil-Ho Kim
Summary: The study developed an SBD system using n-type tungsten disulfide (WS2) and demonstrated improved diode characteristics by depositing In and Au on n-type WS2. The SBD showed characteristics close to an ideal diode with improved electrical properties compared to conventional p-n diodes.
ADVANCED ELECTRONIC MATERIALS
(2022)
Article
Chemistry, Physical
Seongsoo Lee, Janghyuk Moon, His Muhammad Bintang, Sunghee Shin, Hun-Gi Jung, Seung-Ho Yu, Si Hyoung Oh, Dongmok Whang, Hee-Dae Lim
Summary: This article introduces a fast ionic conductor based on succinonitrile material, demonstrating its potential application in multivalent-ion batteries. The monolithic succinonitrile material has high conductivity and chemical thermal stability, allowing for simple phase transitions between liquid and solid states. Through density functional theory calculations, the authors explain the origin of its high conductivity.
JOURNAL OF MATERIALS CHEMISTRY A
(2021)
Article
Multidisciplinary Sciences
Ji-Yun Moon, Minsoo Kim, Seung-Il Kim, Shuigang Xu, Jun-Hui Choi, Dongmok Whang, Kenji Watanabe, Takashi Taniguchi, Dong Seop Park, Juyeon Seo, Sung Ho Cho, Seok-Kyun Son, Jae-Hyun Lee
Article
Materials Science, Multidisciplinary
Deyong Zheng, Huihui Jin, Yucong Liao, Pengxia Ji
Summary: In this study, a highly stable and efficient catalyst, fluorine-doped Co3O4 (F-Co3O4), was developed for hydrogen production by water electrolysis. The F-Co3O4 catalyst exhibited a remarkable reduction in overpotential and demonstrated excellent stability for over 100 hours.
Article
Materials Science, Multidisciplinary
Ziwen Lv, Jintao Wang, Fengyi Wang, Jianqiang Wang, Fuquan Li, Hongtao Chen
Summary: Adding Cu6Sn5 nano particles can effectively inhibit the overgrowth of intermetallic compounds at the interfaces of solder joints in electronic devices, providing a solution to this issue. A new growth mechanism of intermetallic compounds at the interfaces was identified.
Article
Materials Science, Multidisciplinary
Jun Wang, Jiawei Chen, Wanru Liao, Fangyang Liu, Min Liu, Liangxing Jiang
Summary: A BiOI/AgI/Ag plasmonic heterostructure photocathode was successfully designed through electrodeposition, ion-exchange, and illumination methods. This photocathode exhibits superior performance in photoelectrochemical water splitting.
Article
Materials Science, Multidisciplinary
Xiaoxiao Liu, Xianxian Zhou, Xiaotao Ma, Qinbo Yuan, Shibin Liu
Summary: In this study, the authors propose a method to accelerate the reaction of polysulfides in lithium-sulfur batteries using a Ni@OC Mott-Schottky heterojunction as a catalyst. The experimental results demonstrate that the charge redistribution at the Ni@OC interface accelerates electron transfer and enhances catalytic activity, leading to improved reaction kinetics and battery performance.
Article
Materials Science, Multidisciplinary
Dayou Ma, Mohammad Rezasefat, Joziel Aparecido da Cruz, Sandro Campos Amico, Marco Giglio, Andrea Manes
Summary: The matrix has a significant effect on the impact resistance of composite materials. Replacing a brittle polymer with a more flexible one can improve impact resistance, but it poses challenges to standard testing methods. This study designs a new fixture for testing the low-velocity impact of soft composites and investigates the effect of the fixture on the mechanical performance.
Article
Materials Science, Multidisciplinary
Lingchang Wang, Qihang Yang, Huzhen Li, Ming Wei, Qian Wang, Zhenzhong Hu, Mengmeng Zhen
Summary: Bronze titanium dioxide (TiO2(B)) is a promising anode material for lithium-ion batteries due to its high specific capacity. However, its practical applications are hindered by poor conductivity and limited electrochemical kinetics. In this study, TiO2(B)-carbon nanosheets heterostructures are synthesized to enhance the cycling performance and rate capability of TiO2(B).
Article
Materials Science, Multidisciplinary
Atul Thakur, Ritesh Verma, Ankush Chauhan, Fayu Wan, Preeti Thakur
Summary: In this study, BaFe12O19 and BaFe12O19: Epoxy (50:50) nanocomposites were synthesized using the co-precipitation method. The structural information and material properties, such as crystallite size and electrical conductivity, were characterized by XRD, FESEM, EDX, and TEM techniques.
Article
Materials Science, Multidisciplinary
Jingyu Wu, Xinyan Ma, Yong Yang
Summary: A well-defined CoS2@NC(CS-500) hierarchical binder-free catalyst cathode is constructed through in-situ grown of ZIF-67 on carbon cloth and high-temperature carbonization. The cathode shows excellent reaction kinetics and electrochemical performance, providing inspiration for developing advanced Li-CO2 battery catalysts.
Article
Materials Science, Multidisciplinary
Svetlana M. Posokhova, Vladimir A. Morozov, Kirill N. Boldyrev, Dina Deyneko, Erzhena T. Pavlova, Bogdan I. Lazoryak
Summary: This study explores the impact of synthesis method and composition on the structure and luminescence properties of K5Eu1-xHox(MoO4)4 with the palmierite-type matrix. The co-doping of Eu3+ and Ho3+ ions plays a critical role in manipulating charge transfer and luminescence efficiency in the visible and infrared regions.
Article
Materials Science, Multidisciplinary
Jian Wang, Yeting Tao, Jingsheng Wang, Youtian Tao
Summary: A new electron-transport material iTPyBI-CN is developed through non-catalytic C-N coupling reaction. It exhibits better electroluminescence efficiency in organic light-emitting diodes compared to the commercial material TPBI, due to its twisted geometry and higher energy levels.
Article
Materials Science, Multidisciplinary
Tao Zhu, Feng Huang, Shuo Li, Yang Zhou
Summary: This article combines XRD analysis and microscopic structural observation to investigate the changes in limestone after high-temperature treatment. It finds that 500 degrees C is the critical temperature for crystalline and spatial arrangement changes in limestone, and the thermal conductivity, specific heat capacity, and heat storage coefficient gradually decrease after thermal treatment.
Article
Materials Science, Multidisciplinary
Muhammad Haekal Habibie, Fransiska Sri Herwahyu Krismastuti, Abdi Wira Septama, Faiza Maryani, Vivi Fauzia
Summary: This study focuses on the synthesis of zinc oxide nanostructure from zinc recovered from galvanization ash and highlights its potential as a sustainable source of zinc and as an antibacterial agent.
Article
Materials Science, Multidisciplinary
Jingyi Li, Yixin Xing, Wei Gu, Shousi Lu
Summary: In this study, PC@CaP microparticles were fabricated using biomimetic mineralization. The results showed that under environmental stress, PC@CaP exhibited improved stability and antioxidative activity, indicating its potential use in high-added value fields.
Article
Materials Science, Multidisciplinary
Yan Liu, Shunyou Chen
Summary: In this study, TNTs were used as a drug carrier and modified with ZIF-8 and silk fibroin to obtain a new drug loading platform. The results showed that this drug-loaded platform had a good drug release effect in vitro and could promote cell proliferation and osteogenic differentiation.
Article
Materials Science, Multidisciplinary
Chunhui Zhu, Wentao Wang, Qing Zhen, Xinning Huang, Shixin Li, Shaochang Wang, Xiaoping Ma, Xiaoxia Liu, Yalong Jiao, Kai Sun, Zhuangzhi Li, Huaixin Yang, Jianqi Li
Summary: A type of stacking fault is revealed in e-InSe crystal, which is associated with a small stacking-fault energy and shows exceptional plasticity.
