Article
Chemistry, Physical
Sivasakthi Sethuraman, Gurunathan Karuppasamy
Summary: In this study, novel Fe doped SnO2/g-C3N4 micro flowers were successfully prepared using the hydrothermal method. The developed nanomaterials exhibited good crystalline structure and morphology. The prepared nanocomposite showed potential applications in photocatalytic water splitting and dye degradation.
INTERNATIONAL JOURNAL OF HYDROGEN ENERGY
(2022)
Article
Energy & Fuels
Ghulam Nabi, Wajid Ali, Muhammad Tanveer, Tahir Iqbal, Muhammad Rizwan, S. Hussain
Summary: Development of efficient binary composite electrode materials is urgently needed to address the global energy crises. TiS2, MoS2 and TiS2/MoS2 composites were synthesized using hydrothermal technique, and their structural and morphological properties were characterized. The TiS2/MoS2 composite exhibited significantly improved specific capacitance and excellent stability, making it a promising candidate for high-performance energy storage devices.
JOURNAL OF ENERGY STORAGE
(2023)
Article
Chemistry, Physical
Jay Singh, Seulgi Lee, Sungjin Kim, Satendra Pal Singh, Jaekook Kim, Alok Kumar Rai
Summary: Fe2O3 nano-particles show superior electrochemical performance compared to nano-rods as anode materials in Lithium ion batteries, attributed to their high stability, small agglomerations, and providing extra reaction sites for large Li-ions. Nano-rods morphology leads to poor electrochemical performance due to structural collapse during lithiation/de-lithiation reactions after a certain number of cycles.
SOLID STATE IONICS
(2021)
Article
Materials Science, Ceramics
Yong Guo, Junlang Tan, Jingchang Zhao
Summary: The hydrothermal method was used to prepare nano-scale SnO2 coated CCTO composite ceramics, and various analysis techniques were employed to study their surface structure and composition distribution. The sintered ceramics exhibited a dense microstructure and a remarkably high dielectric constant. It was found that polarization occurred at both the grain boundaries on the micron scale and the nanocrystals on the nanometer scale, which contributed to the giant dielectric phenomenon of the CCTO/SnO2 composite ceramics.
CERAMICS INTERNATIONAL
(2022)
Article
Physics, Applied
Lihao Zhou, Yinhua Hu, Shaobo Li, Xianghong Liu, Jun Zhang
Summary: In this study, MXene was passivated using atomic layer deposition (ALD). The passivated MXene@SnO2 material exhibited a high response rate and fast recovery time in gas sensor tests, demonstrating the potential for developing MXene-based gas sensors using the ALD technique.
APPLIED PHYSICS LETTERS
(2023)
Article
Materials Science, Ceramics
Fei Peng, Yonggang Jiang, Fengqi Liu, Jian Feng, Junzong Feng, Liangjun Li
Summary: This study develops a new method to tailor the crystallinity of alumina aerogels and successfully synthesizes heat resistant, well-crystallized alumina aerogels. The thermal evolution of the aerogel and the factors influencing thermal stability are investigated. A general rule towards improving the heat-resistance of alumina aerogels is discovered.
CERAMICS INTERNATIONAL
(2022)
Article
Chemistry, Physical
Furong Xie, Shiqiang Zhao, Xiaoxu Bo, Guanghui Li, Jiamin Fei, Ebrahim-Alkhalil M. A. Ahmed, Qingcheng Zhang, Huile Jin, Shun Wang, Zhiqun Lin
Summary: A solvothermal-driven solid-to-solid transition strategy was developed to craft tartaric acid capped ultrafine SnO2 nanoparticles on sacrificial SnC2O4 microrods. This technique effectively suppresses volume expansion, enables superior structural stability and reaction kinetics, and increases storage capacity.
JOURNAL OF MATERIALS CHEMISTRY A
(2022)
Review
Energy & Fuels
Sushant Kumar, Rohit Srivastava, Daewon Pak, Jayeeta Chattopadhyay
Summary: This article reviews the progress in the synthesis and energy applications of multishelled spherical nano-materials over the past decade, discussing the basic principles, challenges, and advantages of different synthetic strategies, and emphasizing the potential applications of these materials in electrocatalysis, electrodes, lithium ion batteries, and solar cells. It also explores the correlation between the number of shells, geometric, and compositional structure with their properties and specific applications.
INTERNATIONAL JOURNAL OF ENERGY RESEARCH
(2021)
Article
Chemistry, Multidisciplinary
Jiaxin Li, Yongcong Huang, Weijian Huang, Jianming Tao, Fucong Lv, Ruilai Ye, Yingbin Lin, Yang Yang Li, Zhigao Huang, Jian Lu
Summary: By synthesizing micro-nano structured composites of Gr@ZnO-Si-C, the three dilemmas faced by silicon-graphite anode materials have been successfully addressed, leading to excellent lithium battery performance. The incorporated ZnO improves interface compatibility, while the pyrolytic carbon layer enhances electrical conductivity, ultimately boosting electrode performance.
Article
Chemistry, Physical
Muthamizh Selvamani, S. Balachandran, Arul Varman Kesavan, Victor Vinoth
Summary: In this study, cost-effective nano-flowers Bi2MoO6 were synthesized using a hydrothermal method. The synthesized Bi2MoO6 exhibited a monoclinic phase with a flower-like structure composed of semi-randomly oriented petals. The Bi2MoO6 nano-flowers showed promising anticancer activity against melanoma cells and also demonstrated effective degradation of organic pollutants under visible light irradiation.
SURFACES AND INTERFACES
(2023)
Article
Environmental Sciences
Ehsan Ullah, Muhammad Zia Ullah Shah, Syed Awais Ahmad, Muhammad Sajjad, Shaukat Khan, Fatimah M. Alzahrani, Adel E. M. Yahya, Sayed M. Eldin, Bhargav Akkinepally, A. Shah, Shenghui Guo
Summary: This study demonstrates the facile hydrothermal synthesis of CdO, SnO2, and CdO-SnO2 nanocomposites and evaluates their electrochemical properties. The CdO-SnO2 composite electrode exhibits higher capacitance due to the additional pores/space provided for active sites, allowing electrolyte ions to continuously interact with the electrode surface. Moreover, the composite electrode demonstrates excellent cycling stability and durability.
Article
Engineering, Environmental
Ziwei Yue, Wei Zhou, Xiaoliang Ji, Yishu Wang, Fu Guo
Summary: A micro/nano Cu2-xS composite with significantly enhanced thermoelectric properties is prepared through a simple hydrothermal method. The power factor and thermal conductivity are optimized by the introduction of nanostructure and increased Cu1.96S contents, resulting in a higher maximum thermoelectric conversion efficiency value at 773 K.
CHEMICAL ENGINEERING JOURNAL
(2022)
Article
Chemistry, Physical
Tianxi He, Nicheng Chen, Jianhua Fang, Guoxing Cai, Jiu Wang, Boshui Chen, Qionglin Liang
Summary: This review summarizes the application of carbon nanomaterials as lubricant additives and their important role in reducing friction and wear. In particular, the research progress of MNCS as lubricant additives is detailed, and the potential applications in the lubrication field are discussed for the future.
JOURNAL OF MOLECULAR LIQUIDS
(2022)
Article
Chemistry, Multidisciplinary
Seok Cheol Choi, Do Kyung Lee, Sang Ho Sohn
Summary: Under a one-step process, catalyst-free growth of one-dimensional ZnO hierarchical nanostructures was achieved on a ZnO-seeded Si substrate by thermal chemical vapor deposition in a perpendicular setup. The morphological and crystallographic properties of the nano/micro-structured ZnO rods were investigated with varying growth temperature and growth time. The morphology and crystal structure of the ZnO double-structured rods were found to be sensitive to the growth temperature and growth time, as confirmed by X-ray diffraction patterns. Additionally, orientation and size effects of the ZnO double-structured rods were discussed in relation to growth temperatures and growth times based on Raman scattering and photoluminescence spectra.
Article
Energy & Fuels
R. Packiaraj, P. Devendran, K. S. Venkatesh, K. Mahendraprabhu, N. Nallamuthu
Summary: In this study, flower-like nano-sized nickel cobalt oxide was synthesized successfully and used in the fabrication of an asymmetric supercapacitor device. The prepared materials showed good electrochemical performance with high specific capacitance and cyclic stability. Furthermore, the asymmetric supercapacitor energy storage device achieved high specific energy and specific power values.
JOURNAL OF ENERGY STORAGE
(2021)
Article
Materials Science, Multidisciplinary
Vu Xuan Hien, Jae-Lok You, Kwang-Min Jo, Se-Yun Kim, Joon-Hyung Lee, Jeong-Joo Kim, Young-Woo Heo
Article
Nanoscience & Nanotechnology
Vu Xuan Hien, Young-Woo Heo
ACS APPLIED MATERIALS & INTERFACES
(2016)
Article
Chemistry, Analytical
Vu Xuan Hien, Young-Woo Heo
SENSORS AND ACTUATORS B-CHEMICAL
(2016)
Article
Engineering, Electrical & Electronic
Nguyen Thi Thuy, Do Duc Tho, Nguyen Cong Tu, Dang Duc Vuong, Nguyen Duc Chien, Nguyen Huu Lam
JOURNAL OF ELECTRONIC MATERIALS
(2017)
Article
Engineering, Electrical & Electronic
Pham Tien Hung, Vu Xuan Hien, Joon-Hyung Lee, Jeong-Joo Kim, Young-Woo Heo
JOURNAL OF ELECTRONIC MATERIALS
(2017)
Article
Engineering, Electrical & Electronic
Nguyen Dac Dien, Luong Huu Phuoc, Vu Xuan Hien, Dang Duc Vuong, Nguyen Duc Chien
JOURNAL OF ELECTRONIC MATERIALS
(2017)
Article
Engineering, Electrical & Electronic
Vu Xuan Hien, Vu Duy Minh, Luong Huu Phuoc, Dang Duc Vuong, Young-Woo Heo, Nguyen Duc Chien
JOURNAL OF ELECTRONIC MATERIALS
(2017)
Article
Materials Science, Multidisciplinary
Vu Xuan Hien, Dang Duc Vuong, Nguyen Duc Chien, Young-Woo Heo
MATERIALS CHEMISTRY AND PHYSICS
(2018)
Article
Materials Science, Multidisciplinary
Vu Xuan Hien, Nguyen Hoang Minh, Dang Tuan Son, Nguyen Thanh Nghi, Luong Huu Phuoc, Cao Tien Khoa, Dang Duc Vuong, Nguyen Duc Chien, Young-Woo Heo
Article
Nanoscience & Nanotechnology
Pham Tien Hung, Vu Xuan Hien, Phung Dinh Hoat, Sangwook Lee, Joon-Hyung Lee, Jeong-Joo Kim, Young-Woo Heo
SCRIPTA MATERIALIA
(2019)
Article
Nanoscience & Nanotechnology
Dac Dien Nguyen, Duc Tho Do, Xuan Hien Vu, Duc Vuong Dang, Duc Chien Nguyen
ADVANCES IN NATURAL SCIENCES-NANOSCIENCE AND NANOTECHNOLOGY
(2016)
Article
Nanoscience & Nanotechnology
Spyridon G. Kosionis, Emmanuel Paspalakis
Summary: In this study, we theoretically investigate the pump-probe response and the four-wave mixing spectrum in a hybrid system composed of a semiconductor quantum dot and a spherical metal nanoparticle. Using a density matrix methodology, we calculate the absorption/gain, dispersion, and four-wave mixing spectra, and analyze their spectral characteristics. We also apply the metastate theory and the dressed-state picture to predict the positions of the spectral resonances.
PHYSICA E-LOW-DIMENSIONAL SYSTEMS & NANOSTRUCTURES
(2024)
Article
Nanoscience & Nanotechnology
L. S. Lima
Summary: This study investigates quantum correlation and entanglement in the non-Hermitian Hubbard model. By analyzing quantum entanglement measures such as entanglement negativity and entropy, the effect of non-Hermitian imaginary hopping on the system is explored. It is found that in the large... limit, the non-Hermiticity reverses the behavior of the ground state energy and low-lying excitations.
PHYSICA E-LOW-DIMENSIONAL SYSTEMS & NANOSTRUCTURES
(2024)
Article
Nanoscience & Nanotechnology
Nam-Chol Ri, Chung-Sim Kim, Sang-Ryol Ri, Su-Il Ri
Summary: By decreasing the lattice thermal conductivity of GNR through chemical derivation and strain, enhancing the thermoelectric properties of the electron part can be an important method to approach PGEC. This paper proposes synthesized hybrid systems formed by chemical derivation in the middle parts of b-AGNRs, and investigates the band structures and thermoelectric properties of the electron part under different strains. The results show that the band gaps of the systems significantly increase under different strains.
PHYSICA E-LOW-DIMENSIONAL SYSTEMS & NANOSTRUCTURES
(2024)
Article
Nanoscience & Nanotechnology
Le T. T. Phuong, Tran Cong Phong
Summary: This study investigates the effects of gas molecules adsorbed on /312-borophene on its electronic heat capacity and thermal Schottky anomaly. The results show that the adsorbed gas molecules have different impacts on the electronic heat capacity, leading to the generation of various new energy levels.
PHYSICA E-LOW-DIMENSIONAL SYSTEMS & NANOSTRUCTURES
(2024)
Article
Nanoscience & Nanotechnology
Tianyan Jiang, Jie Fang, Wentao Zhang, Maoqiang Bi, Xi Chen, Junsheng Chen
Summary: This paper investigates the adsorption and sensing properties of transition metal-doped WSSe gas-sensitive devices towards H2, CO, and CO2 gases related to thermal runaway in Li-ion batteries using density functional theory. The results show that Ti, Mn, and Mo dopants preferentially bind to the S-surface of the WSSe monolayer, and all three monolayers exhibit significantly improved sensing characteristics, with chemisorption towards CO. Band structure analysis suggests that the Ti-WSSe monolayer has the potential to be used as a resistive CO detection sensor. Recovery time calculations indicate the reuse capabilities of the gas-sensitive devices. Mn-WSSe monolayer shows potential for H2 detection, while Mo-WSSe monolayer is more suitable for CO2 detection. This work lays the foundation for potential gas-sensitive applications of WSSe monolayer in thermal runaway scenarios, advancing research in gas sensing domains.
PHYSICA E-LOW-DIMENSIONAL SYSTEMS & NANOSTRUCTURES
(2024)
Article
Nanoscience & Nanotechnology
Olga A. Alekseeva, Aleksandr A. Naberezhnov, Ekaterina Yu. Koroleva, Aleksandr Fokin
Summary: This study investigates the temperature dependence of crystal structure and dielectric response in a nanocomposite material containing porous glasses and embedded sodium nitrate. The results reveal a crossover point in the temperature dependence of the order parameter of the structural transition in sodium nitrate nanoparticles, as well as a decrease in activation energy of sodium ions hopping conductivity during heating.
PHYSICA E-LOW-DIMENSIONAL SYSTEMS & NANOSTRUCTURES
(2024)
Article
Nanoscience & Nanotechnology
Lijun Cheng, Fang Cheng
Summary: This paper investigates the effects of electric and magnetic fields on the Goos-Hanchen (GH) shift in a semi-Dirac system. The results show that the magnitude and direction of the GH shift depend on various factors such as incidence angle, electric barrier height and width, and magnetic field. It is observed that there is a saltus step in GH shifts at the critical magnetic field, which decreases with increased potential barrier thickness. Additionally, the GH shift can be significantly enhanced by applying an electric field in the III region. These findings are important for the development of semi-Dirac based electronic devices.
PHYSICA E-LOW-DIMENSIONAL SYSTEMS & NANOSTRUCTURES
(2024)
Article
Nanoscience & Nanotechnology
Alexander K. Fedotov, Uladzislaw E. Gumiennik, Julia A. Fedotova, Janusz Przewoznik, Czeslaw Kapusta
Summary: The study conducted an improved analysis of carrier transport in single-layer graphene and hybrid structures, showing the coexistence of negative and positive contributions in magnetoresistive effect. Various models were used to analyze the dependences on temperature and magnetic field, providing insights into the behavior of electrical resistance in the structures.
PHYSICA E-LOW-DIMENSIONAL SYSTEMS & NANOSTRUCTURES
(2024)
Article
Nanoscience & Nanotechnology
Xuhui Peng, Tao Chen, Ruotong Chen, Shizheng Chen, Qing Zhao, Xiaoping Huang
Summary: In this study, a novel method was proposed to design and fabricate optoelectronic devices with highly precise controlled photorefractive liquid crystal structures. By utilizing quantum dots and electric tuning, a regular periodic grating was formed in a quantum dot-doped liquid crystal volume illuminated by a laser standing evanescent wave field. The obtained optical diffraction pattern showed equally spaced light spots and high diffraction efficiency, indicating a significant change in the refractive index of the nanostructured device.
PHYSICA E-LOW-DIMENSIONAL SYSTEMS & NANOSTRUCTURES
(2024)
Article
Nanoscience & Nanotechnology
Kai-Hua Yang, Xiao-Hui Liang, Huai-Yu Wang, Yi-Fan Wu, Qian-Qian Yang
Summary: In this work, a theoretical model is proposed to achieve the controllability of quantum interference and decoherence. The effects of intralead Coulomb interaction, interdot tunneling, and electron-phonon interactions on differential conductance are investigated. The results show the appearance of destructive interference, Fano interference, and negative differential conductance in strong dot-lead tunneling regions, while a characteristic pattern of positive and negative differential conductances appears in the weak dot-lead tunneling regime.
PHYSICA E-LOW-DIMENSIONAL SYSTEMS & NANOSTRUCTURES
(2024)
Article
Nanoscience & Nanotechnology
Xueying Wang, Qian Ma, Qi Zhang, Yi Wang, Lingyu Li, Dongheng Zhao, Zhiqiang Liu
Summary: Porous double-channel alpha-Fe2O3/SnO2 heterostructures with tunable surface/interface transport mechanism were successfully fabricated by electrospinning and calcination. These heterostructures exhibited a large specific surface area, providing more active sites and enhanced adsorption capacity. The optimal composite materials showed the highest response value and the fastest response/recovery times to DMF, along with good cycling performance, long-term stability, and high gas selectivity.
PHYSICA E-LOW-DIMENSIONAL SYSTEMS & NANOSTRUCTURES
(2024)
Article
Nanoscience & Nanotechnology
Donglin Guo, Zhengmeng Xu, Chunhong Li, Kejian Li, Bin Shao, Xianfu Luo, Jianchun Sun, Yilong Ma
Summary: Using full electron-phonon interactions and the Boltzmann transport equation, this study investigates the phonon scattering channel and electrical properties of graphene under anharmonic phonon renormalization (APRN). The results show that the APRN reduces the phonon frequency and three-phonon phase space with increasing temperature, affecting the acoustic branch more than the optical branch. The thermal conductivity of graphene decreases after considering three- and four-phonon scattering, and the primary scattering channels are identified. Furthermore, the APRN increases the strength of electron-phonon coupling and leads to an increase in n-type electric resistance at room temperature.
PHYSICA E-LOW-DIMENSIONAL SYSTEMS & NANOSTRUCTURES
(2024)
Article
Nanoscience & Nanotechnology
Hongping Zhao, Man Zhao, Dayong Jiang
Summary: The study proposes a broadband photodetector with high response, high sensitivity, and controllable band by integrating quantum dots and highly conductive materials. The PD composed of ZnO film/PbS quantum dots heterostructure shows excellent photoresponse performance in the UV-Vis-NIR range, with the peak responsivity increased by 550%, accompanied by significant red shift, faster response, and recovery speed. By using RF magnetron sputtering to prepare ultra-thin ZnO film, the impact of PbS quantum dots on the photoelectric properties of ZnO film is comprehensively and systematically discussed.
PHYSICA E-LOW-DIMENSIONAL SYSTEMS & NANOSTRUCTURES
(2024)
Article
Nanoscience & Nanotechnology
Ye Xuan Meng, Liwei Jiang, Yisong Zheng
Summary: Manipulating magnetism by electrical means is an effective method for realizing ultra-low power spintronic-integrated circuits. In this study, it is demonstrated that the two-dimensional semiconductor material InO monolayer can be tuned to a half-metallic state by applying a gate voltage, providing theoretical guidance for adjusting two-dimensional magnetic semiconductors.
PHYSICA E-LOW-DIMENSIONAL SYSTEMS & NANOSTRUCTURES
(2024)
Article
Nanoscience & Nanotechnology
Anusha Kachu, Aalu Boda
Summary: In this research, we investigated the impact of confinement nature on a neutral hydrogenic donor impurity in a quantum dot. The study demonstrated intriguing behavior in response to changes in potential shape, quantum dot parameters, and spin-orbit coupling strengths. The findings provide valuable insights into the fundamental physics of quantum dots and impurities and can aid in the design and optimization of QD-based technologies.
PHYSICA E-LOW-DIMENSIONAL SYSTEMS & NANOSTRUCTURES
(2024)