Article
Engineering, Electrical & Electronic
Khushali Joshi, Khyati Mistry, Brijesh Tripathi, Prakash Chandra, Satyam. M. Shinde, Manoj Kumar, Dhaval Santola, Himanshu Chokshi, Pavan Gurrala
Summary: Storing and delivering green hydrogen generated by solar energy is important for supplementing intermittent renewable energy. The development of non-noble metal-based electrocatalysts is needed for cost-competitive hydrogen generation. In this study, molybdenum disulfide nanomaterial catalysts were synthesized and used for solar-driven electrochemical water splitting.
ACS APPLIED ELECTRONIC MATERIALS
(2023)
Article
Chemistry, Inorganic & Nuclear
Zilong Li, Weilong Xu, Xiaolong Yu, Sanxi Yang, Yang Zhou, Kai Zhou, Qikai Wu, Shunlian Ning, Mi Luo, Dengke Zhao, Nan Wang
Summary: The rational design and synthesis of 1D Co3S4/MoS2 bimetallic sulfide nanorods show excellent performance for the hydrogen/oxygen evolution reaction. The introduction of Co3S4 is found to enhance water dissociation during the HER process according to density functional theory, offering new insights for preparing high-performance electrolyzers.
INORGANIC CHEMISTRY FRONTIERS
(2022)
Article
Materials Science, Multidisciplinary
Xunfu Zhou, Meng Li, Pai Wang, Minfu Wu, Bei Jin, Jin Luo, Meifeng Chen, Xiaoqin Zhou, Yanning Zhang, Xiaosong Zhou
Summary: A non-noble metal photocatalyst of MoS2 nanodots anchored on P-doped g-C3N4 was constructed. The P-doped g-C3N4/MoS2 catalyst achieved efficient photocatalytic water splitting with a high hydrogen evolution rate of 121.7 μmol h-1 g-1. This work paves a new avenue for designing noble-metal-free photocatalysts for large-scale applications.
JOURNAL OF MATERIALS SCIENCE & TECHNOLOGY
(2023)
Review
Chemistry, Multidisciplinary
Hwapyong Kim, Joo Won Seo, Wookjin Chung, Ghulam Mustafa Narejo, Sung Wook Koo, Ji Su Han, Jiwoong Yang, Jae-Yup Kim, Su-Il In
Summary: Photoelectrochemical (PEC) hydrogen production is an emerging technology that utilizes renewable solar light to establish a sustainable carbon-neutral society. Researchers have focused on materials and systems, but recent studies have explored the use of thermal effects in PEC hydrogen production. This Review provides a fresh perspective on utilizing thermal effects for enhancing PEC performance and summarizes the underlying principles and equations associated with efficiency.
Review
Chemistry, Multidisciplinary
Hwapyong Kim, Joo Won Seo, Wookjin Chung, Ghulam Mustafa Narejo, Sung Wook Koo, Ji Su Han, Jiwoong Yang, Jae-Yup Kim, Su-Il In
Summary: Photoelectrochemical (PEC) hydrogen production is a promising technology for establishing a sustainable carbon-neutral society. However, its commercialization is hindered by low efficiency and high cost. Recent studies on utilizing thermal effects in PEC have opened up new possibilities for enhancing its performance. This review provides an overview of the principles and equations related to the thermal effect on PEC, and categorizes materials into plasmonic metals, quantum dot-based semiconductors, and photothermal organic materials. The economic viability and challenges of these strategies are also discussed.
Article
Chemistry, Multidisciplinary
Xiaoliang Shen, Mengna Zhang, M. Shire Sudi, Wei Zhao, Qi Wang, JinShen Ren, Long Zhao, Aijian Wang, Weihua Zhu
Summary: The water splitting performance of CoSe@NiSe2@MoS2 composites varies with composition, with optimized CoSe@NiSe2@MoS2-12 showing good current density in alkaline conditions. The low voltage of the overall water splitting device at 10 mA cm(-2) is attributed to synergistic effects.
CHEMICAL COMMUNICATIONS
(2021)
Article
Chemistry, Multidisciplinary
Sang Eon Jun, Seung-Pyo Hong, Seokhoon Choi, Changyeon Kim, Su Geun Ji, Ik Jae Park, Sol A. Lee, Jin Wook Yang, Tae Hyung Lee, Woonbae Sohn, Jin Young Kim, Ho Won Jang
Summary: This study achieves stable and efficient solar water splitting in alkaline conditions by developing new catalysts and optimizing the structure of the silicon photocathode. The MoS2 nanoplates/TiO2 nanorods/p-Si photocathode shows high photoelectrochemical performance in alkaline media, with a high photocurrent density and stability, leading to a high solar-to-hydrogen efficiency when integrated with semiconductor photovoltaic cells.
Article
Chemistry, Physical
Jiahui Jin, Mingkai Fu, Lei Wang, Tianzeng Ma, Xin Li, Fei Jin, Yuanwei Lu
Summary: Solar thermochemical (STC) technology utilizes the entire spectrum of solar energy to decompose water to produce hydrogen, but low water-splitting activity of redox materials restricts fuel production efficiency. Research shows that the hydrogen production mechanism of perovskite LaFeO3 is still rarely studied and needs further exploration.
INTERNATIONAL JOURNAL OF HYDROGEN ENERGY
(2021)
Article
Materials Science, Multidisciplinary
Sakshi Saxena, Anuradha Verma, Neeraj Kumar Biswas, Saif Ahmad Khan, Vibha Rani Satsangi, Rohit Shrivastav, Sahab Dass
Summary: This study focused on the synergistic effect of zirconium (Zr) and tungsten (W) co-doping on the photoelectrochemical performance of bismuth vanadate. The co-doping resulted in enhanced photocurrent density, increased roughness, decreased flat band potential, higher donor density, and improved separation of electron-hole pairs in the sample. The enhancement in photoelectrochemical response was attributed to the synergistic effect of Zr and W co-doping which increased photon harvesting rate and separation of electron-hole pairs.
MATERIALS CHEMISTRY AND PHYSICS
(2021)
Article
Chemistry, Multidisciplinary
Jing-Xin Jian, Valdas Jokubavicius, Mikael Syvajarvi, Rositsa Yakimova, Jianwu Sun
Summary: Cubic silicon carbide (3C-SiC) shows promise as a photoelectrode material for solar water splitting due to its small band gap and ideal energy band positions, but typically experiences reduced photocurrent despite the presence of various oxygen-evolution-reaction (OER) cocatalysts.
Article
Chemistry, Multidisciplinary
Songtao Tang, Weitao Qiu, Xiuwen Xu, Shuang Xiao, Yexiang Tong, Xinwei Wang, Shihe Yang
Summary: There is evidence that defects can improve the catalytic activity of photoelectrochemical (PEC) water splitting, but they can also degrade the PEC performance. This study demonstrates the use of the infrared part of sunlight to activate polarons and improve the overall PEC performance, achieving a high solar-to-hydrogen efficiency.
ADVANCED FUNCTIONAL MATERIALS
(2022)
Article
Chemistry, Multidisciplinary
Meng-Di Zhang, Jia -Run Huang, Wen Shi, Pei-Qin Liao, Xiao-Ming Chen
Summary: In this study, a stable metal-organic framework (PcNi-Co-O) was reported as a bifunctional electrocatalyst for efficient CO2 overall splitting. PcNi-Co-O achieved a commercial-scale current density of 123 mA cm-2 and a Faradic efficiency (CO) of 98% at a low cell voltage of 4.4 V when used as both cathode and anode catalysts. Mechanism studies revealed the synergistic effects between two active sites and the energy-level matching of cathode and anode catalysts.
JOURNAL OF THE AMERICAN CHEMICAL SOCIETY
(2023)
Article
Chemistry, Physical
Beibei He, Guohong Pan, Yanzhu Deng, Ling Zhao, Huanwen Wang, Rui Wang, Yansheng Gong
Summary: The study presents a bifunctional electrocatalyst based on hierarchical FePx-NiCo2O4 nanoneedle arrays, which shows superior performance in water electrolysis. The electrode exhibits low overpotentials and voltage, outperforming commercial electrocatalysts, paving a new way for developing transition metal oxides-based overall water splitting electrocatalysts.
APPLIED SURFACE SCIENCE
(2021)
Article
Chemistry, Multidisciplinary
Hao-Sen Kang, Jing-Wen Zou, Yang Liu, Liang Ma, Jing-Ru Feng, Zi-Yang Yu, Xiang-Bai Chen, Si-Jing Ding, Li Zhou, Qu-Quan Wang
Summary: A three-plasmon hybrid material consisting of core-shell Au@Cu2-xS hybrids bonded with ultrathin Ti3C2Tx MXene is prepared for efficient photothermal conversion and solar water evaporation. The hybrid material exhibits excellent photothermal conversion efficiency, light absorption, and charge transfer capabilities. The combination with MXene as a membrane material results in high evaporation rate and light-to-heat conversion efficiency. Furthermore, a solar evaporation device is designed based on liquid pressure and connectors, demonstrating potential applications in water purification and drinkable water generation.
ADVANCED FUNCTIONAL MATERIALS
(2023)
Article
Chemistry, Multidisciplinary
Rengui Li, Can Li
Summary: The excessive use of fossil fuels has led to energy and environmental issues, and renewable hydrogen energy produced from solar water splitting could be a potential alternative. Although photocatalytic water splitting is a simple and low-cost method for hydrogen production, there are challenges in scaling up the process.
CURRENT OPINION IN GREEN AND SUSTAINABLE CHEMISTRY
(2022)
Article
Nanoscience & Nanotechnology
Xinjiang Zhang, Anping Huang, Zhisong Xiao, Mei Wang, Jing Zhang, Paul K. Chu
Summary: The transfer characteristics and switching mechanism of the steep-slope transistor composed of the graphene/Janus MoSSe heterostructure have been investigated. The gate voltage can tune the Schottky barrier height and tunneling width, resulting in ambipolar switching with two minima in the subthreshold swing slope. The device provides a solution and guidance for the future design of low-power, high-performance devices.
Article
Electrochemistry
Huiyun Shi, Youyuan Zhang, Ning Pang, Shaohui Xu, Dayuan Xiong, Lianwei Wang, Pingxiong Yang, Paul K. Chu
Summary: The surface admittances calculated from electrochemical impedance spectra are utilized to analyze the surface states of X-MoS2 (X=Fe, Co, Ni) prepared on graphite felt. The semiconducting properties of Fe-MoS2 at the electrolyte-semiconductor interface lead to enhanced bifunctional catalytic properties in the hydrogen/oxidation evolution reactions (HER/OER) due to improved surface adsorption/desorption and slow-changing surface conductance. The surface morphology and electric field between the semiconductor and electrolyte are critical parameters affecting the surface properties in HER/OER.
ELECTROCHIMICA ACTA
(2023)
Article
Chemistry, Multidisciplinary
Shi Mo, Kaiwei Tang, Qing Liao, Lingxia Xie, Yuzheng Wu, Guomin Wang, Qingdong Ruan, Ang Gao, Yuanliang Lv, Kaiyong Cai, Liping Tong, Zhengwei Wu, Paul K. Chu, Huaiyu Wang
Summary: Bacteria killing behavior based on physical effects is preferred for biomedical implants due to minimal side effects. However, the understanding of antibacterial activity of nanostructures is limited, and nanoarchitectures on orthopedics should also promote bone formation. This study fabricated tilted and vertical nanolamellar structures on polyether-ether-ketone (PEEK) and found that both types physically kill bacteria, but through different mechanisms. Tilted nanostructures are more desirable for peri-implant bone regeneration. This research provides insights into the arrangement of nanostructures in orthopedic applications and different mechanisms of physical antibacterial activity.
MATERIALS HORIZONS
(2023)
Article
Engineering, Environmental
Shuyu Fan, Shu Xiao, Songsheng Lin, Fenghua Su, Yifan Su, Paul K. Chu
Summary: High-quality hydrogenated graphene coatings with superior lubricating properties and long service lifetime are synthesized on industrial materials through hot-filament chemical vapor deposition. The hydrogenated graphene coatings exhibit ultra-low friction and even localized superlubricity, providing a new approach to achieving macroscale superlubricity and high durability.
CHEMICAL ENGINEERING JOURNAL
(2023)
Article
Chemistry, Physical
Nian He, Jian Li, Wenjing Li, Xiangsong Lin, Qingyun Fu, Xiang Peng, Weihong Jin, Zhentao Yu, Paul K. Chu
Summary: In this study, a new coating structure consisting of a poly(lactic acid) (PLA) coating and a (3-aminopropyl) triethoxysilane (ATS) transition layer was successfully fabricated to improve the corrosion rate and cytocompatibility of magnesium (Mg) alloys in the physiological environment, thus enhancing their potential application as bone fracture fixation devices.
COLLOIDS AND SURFACES A-PHYSICOCHEMICAL AND ENGINEERING ASPECTS
(2023)
Article
Chemistry, Physical
Shuai Feng, Donglian Li, Hao Dong, Song Xie, Yaping Miao, Xuming Zhang, Biao Gao, Paul K. Chu, Xiang Peng
Summary: In this study, MoO2/Mo2N heterostructures were prepared by regulating the coordination of Mo atoms. The electrocatalyst exhibits high current density and excellent stability for hydrogen evolution reaction.
APPLIED CATALYSIS B-ENVIRONMENT AND ENERGY
(2024)
Article
Chemistry, Physical
Shuyu Fan, Yinong Chen, Shu Xiao, Kejun Shi, Xinyu Meng, Songsheng Lin, Fenghua Su, Yifan Su, Paul K. Chu
Summary: Graphene coatings are promising solid lubrication materials due to their mechanical properties. This study presents a new method for in situ deposition of high-quality graphene coatings on hard substrates using NiCo solid solution and competitive reaction strategies. The graphene coating deposited on substrates with deep NiCo solid solution demonstrates superior low-friction and durability.
Article
Engineering, Multidisciplinary
Jie Shen, Lei Yong, Bo Chen, Wei Qiao, Xinyun Zhai, Shuhan Wang, Yongcan Huang, Paul K. Chu, Binsheng Yu, KelvinW. K. Yeung
Summary: Research is still exploring the contribution of sophisticated regulation of bioactive factors in the microenvironment to tissue regeneration and repair. This study established magnesium oxide homogeneously- and heterogeneously-embedded biocomposites to investigate the biological impacts resulting from different aggregation structures of bioinorganic cations. The results showed that the heterogeneous structure compromised cellular adhesion and proliferation, induced pro-inflammatory responses and affected bone regeneration.
COMPOSITES PART B-ENGINEERING
(2023)
Article
Materials Science, Coatings & Films
Yinghe Ma, Jinhui Mei, Junxin Ouyang, Peng Wu, Sai Wang, Jianguo Yang, Yanming He, Wenjian Zheng, Huaxin Li, Chuanyang Lu, Sendong Ren, Jianping Xu, Paul K. Chu
Summary: Micro-arc oxidation (MAO) is effective in enhancing the corrosion performance of Mg alloys, but the presence of micro-pores in MAO coatings can lead to corrosion. In this study, electron beam strengthening (EBS) is used to improve the microstructure of the Mg alloy, followed by the preparation of MAO coating to enhance corrosion resistance. EBS reduces the crystalline size of the Mg alloy, improves roughness, and increases corrosion resistance. The density and compactness of the MAO coating are improved by EBS, resulting in reduced porosity and enhanced corrosion resistance. A proposed corrosion mechanism is discussed.
JOURNAL OF VACUUM SCIENCE & TECHNOLOGY A
(2023)
Article
Chemistry, Applied
Zanling Huang, Shuqi Zhu, Yuan Duan, Chaoran Pi, Xuming Zhang, Abebe Reda Woldu, Jing-Xin Jian, Paul K. Chu, Qing-Xiao Tong, Liangsheng Hu, Xiangdong Yao
Summary: In this study, it was found that Ni sites act as a host to attract Fe(III) to form Fe(Ni)(III) binary centers, which promote the oxygen evolution reaction (OER) activity and stability by cyclical formation of intermediates. Additionally, other ions can also catalyze the OER process on different electrodes.
JOURNAL OF ENERGY CHEMISTRY
(2024)
Article
Chemistry, Multidisciplinary
Wang Guo, Miao Zhang, Zhongying Xue, Paul K. Chu, Yongfeng Mei, Ziao Tian, Zengfeng Di
Summary: The successful synthesis of wafer-scale single crystalline graphene on semiconducting Ge substrate and the characterization of its high carrier mobility have been achieved. The single crystalline graphene grown on Ge(110) exhibits a maximum carrier mobility of over 100,000 cm(2) V-1 s(-1) at low temperatures, surpassing that of graphene grown on other nonmetal substrates. The study suggests that graphene grown on Ge(110) may provide a platform for developing practical graphene-based nanodevices with high performance.
ADVANCED MATERIALS INTERFACES
(2023)
Article
Multidisciplinary Sciences
Yuzheng Wu, Dezhi Xiao, Pei Liu, Qing Liao, Qingdong Ruan, Chao Huang, Liangliang Liu, Dan Li, Xiaolin Zhang, Wei Li, Kaiwei Tang, Zhengwei Wu, Guomin Wang, Huaiyu Wang, Paul K. Chu
Summary: Flexible wearable devices (FWDs) often lack sufficient power to eradicate bacteria, and traditional antibacterial methods are not suitable due to mechanical and electrical requirements. This study demonstrates the use of polypyrrole (PPy) nanorods on FWDs for effective antibacterial purposes. The PPy nanorod films sterilize Staphylococcus aureus and Escherichia coli by generating membrane stress and depolarization upon mild electrification (1 V). The PPy nanorod films also exhibit excellent biosafety and electrical stability.
Article
Materials Science, Biomaterials
Bo Huang, Wei Guan, Chaofeng Wang, Shuilin Wu, Zhenduo Cui, Yufeng Zheng, Zhaoyang Li, Shengli Zhu, Hui Jiang, Paul K. Chu, Xiangmei Liu
Summary: In this study, a homo-heterostructured S-Cu-FC/CuS/GO@CMC hydrogel was constructed for the first time through an in situ ionic complexation reaction. The hydrogel exhibited enhanced photocatalytic performance under 808 nm near-infrared light irradiation. The interface between S-Cu-FC/CuS and graphene oxide (GO) facilitated the fast transfer of photogenerated charges, leading to the robust sterilization ability of the hydrogel.
BIOMATERIALS SCIENCE
(2023)
Meeting Abstract
Cell & Tissue Engineering
Dorsa Dehghanbaniani, Babak Mehrjou, Paul K. Chu, Wayne Y. W. Lee, Hongkai Wu
TISSUE ENGINEERING PART A
(2023)
Meeting Abstract
Cell & Tissue Engineering
Babak Mehrjou, Dorsa Dehghan Baniani, Paul K. Chu
TISSUE ENGINEERING PART A
(2023)
Article
Chemistry, Multidisciplinary
Alaauldeen A. Duhduh, Chou-Yi Hsu, Mustafa Humam Sami, Anupam Yadav, Russul Thabit, Sagr Alamri, Abdelmajeed Adam Lagum, Ali A. Rajhi
Summary: Density functional theory (DFT) calculations were used to investigate the application of a Zn12O12 nanocage as an anode material in Na-ion batteries (NIBs). The pure nanocage showed low performance, but encapsulating a chloride led to a significant increase in voltage, surpassing carbon nanotubes and C24 fullerene.
JOURNAL OF PHYSICS AND CHEMISTRY OF SOLIDS
(2024)
Article
Chemistry, Multidisciplinary
Hiroyuki Ikemoto, Toshihiko Fujimori, Takafumi Miyanaga, Reo Kawaguchi, Koki Urita, Masao Tabuchi
Summary: This study investigated the structures of two Se chains confined inside single-walled carbon nanotubes (SWCNTs), revealing that the chains were linear and parallel. The covalent bond between Se and SWCNT was found to be stronger than that between Se and trigonal Se (t-Se). The interaction between chains was attributed to the overlap of electronic orbitals, and the disappearance of this overlap in the encapsulated Se chains enhanced the covalent bonds.
JOURNAL OF PHYSICS AND CHEMISTRY OF SOLIDS
(2024)
Article
Chemistry, Multidisciplinary
Suman Yadav, Atul Gour, Sadhna Singh
Summary: In this study, we investigated the electronic and thermoelectric properties of rare-earth half-Heusler XPtBi (X = Gd, Nd, Y) topological semimetals compounds using density functional theory. Our results indicate that the inclusion of spin orbit coupling has a significant impact on the electronic band structure and spin order, making it promising for spintronic applications. We found different topological states in these compounds and observed enhanced power factor in YPtBi with the inclusion of SOC.
JOURNAL OF PHYSICS AND CHEMISTRY OF SOLIDS
(2024)
Article
Chemistry, Multidisciplinary
Takahiro Ozawa, Hiroshi Nakanishi, Koichi Kato, Ryota Shimizu, Taro Hitosugi, Katsuyuki Fukutani
Summary: In this study, we elucidate the hopping mechanism of hydrogen at intermediate temperature using a combination of experimental data and theoretical calculations. We find that the transition from thermal hopping to quantum tunneling is attributed to resonant tunneling, which is achieved through the resonant tunneling of discrete vibrational states between the edge octahedral site and the tetrahedral site. We also demonstrate that the tunneling rate can be tuned by energy level matching.
JOURNAL OF PHYSICS AND CHEMISTRY OF SOLIDS
(2024)
Article
Chemistry, Multidisciplinary
Ankita Nandi, Ritam Mehera, Moumita Mandal, Paramesh Chandra, Swapan K. Mandal, Naznin Ara Begum, Chandan K. Jana, Nilanjana Das
Summary: In this study, stable biogenic ZnO nanoparticles were successfully synthesized using a biosynthesis method, and their effects on oxidative stress parameters in Saccharomyces cerevisiae were investigated. The results demonstrate that high concentrations of ZnO nanoparticles may induce oxidative stress conditions, suggesting caution in their extensive use.
JOURNAL OF PHYSICS AND CHEMISTRY OF SOLIDS
(2024)
Article
Chemistry, Multidisciplinary
P. S. Dighe, A. A. Bhoite, V. L. Patil, N. L. Tarwal, P. B. Sarawade
Summary: In this study, Ni-Co layered double hydroxide (LDH) nanocomposites with excellent electrochemical properties were prepared using hydrothermal technique. The as-obtained material exhibited high specific capacitance and remarkable energy density, showing great potential for supercapacitor applications.
JOURNAL OF PHYSICS AND CHEMISTRY OF SOLIDS
(2024)
Article
Chemistry, Multidisciplinary
Muhammad Danish, Misbah ul Islam, Farooq Ahmad, M. Nadeem Madni, M. Jahangeer
Summary: This study synthesized M-type hexaferrite and graphene oxide using sol-gel auto-combustion and modified Hummer process. The structure and morphology of the materials were characterized by XRD and SEM. The experimental results showed that coupling magnetic ferrite with graphene oxide can tune the electromagnetic properties of the materials, with potential applications in various fields.
JOURNAL OF PHYSICS AND CHEMISTRY OF SOLIDS
(2024)
Article
Chemistry, Multidisciplinary
Abrar U. Hassan, Yuchuan Li
Summary: This study presents a new design strategy of N-doped fused ring electron acceptors for organic dye Y123 in photovoltaic and optical devices. The evaluation of five novel dyes shows their positive contributions to charge transfer. Impressive photovoltaic performance is observed in one of the dyes, with high light harvesting efficiency and maximum power output.
JOURNAL OF PHYSICS AND CHEMISTRY OF SOLIDS
(2024)
Article
Chemistry, Multidisciplinary
Ashvin Kanzariya, Shardul Vadalkar, Sourav Kanti Jana, L. K. Saini, Prafulla K. Jha
Summary: Graphene quantum dots (GQDs) with quantum confinement and size effects show great potential for sensing applications. This computational study investigates the adsorption performance of pristine and transition metal-doped coronene GQDs to hazardous gases. The results suggest that doping with chromium (Cr) or nickel (Ni) enhances the gas adsorption performance, with Cr-doped GQDs showing strong interaction with gas molecules and potential as a gas remover, and Ni-doped GQDs showing potential as a CNCl sensor.
JOURNAL OF PHYSICS AND CHEMISTRY OF SOLIDS
(2024)
Article
Chemistry, Multidisciplinary
Vladimir V. Poborchii, Victor A. Sachkov, Alexander A. Shklyaev, Alexander V. Fokin, Pavel I. Geshev
Summary: This study investigates the polarized optical absorption and Raman spectra of -5 nm diameter tellurium nanowires confined in chrysotile asbestos nanotubes. The results show a strong interaction between the nanowires and light polarized parallel to the nanowires, while a weaker interaction is observed for light polarized perpendicular to the nanowires. This has significant implications for photonic and photo-electric applications.
JOURNAL OF PHYSICS AND CHEMISTRY OF SOLIDS
(2024)
Article
Chemistry, Multidisciplinary
Stanislav Cichon, Frantisek Maca, Vaclav Drchal, Katerina Horakova, Irena Kratochvilova, Jan Lancok, Vladimir Chab, Patrik Cermak, Jiri Navratil, Cestmir Drasar
Summary: In this study, a reliable method for preparing high-quality single crystal substrates doped with Bi2Se3 was developed. The electronic properties and chemical states of atoms in the substitutional position and native defects in the topological insulator were analyzed using experimental and theoretical methods. The relationship between the position of the Dirac cone and valence band maximum was explored and discussed.
JOURNAL OF PHYSICS AND CHEMISTRY OF SOLIDS
(2024)
Article
Chemistry, Multidisciplinary
Ikkurthi Kanaka Durga, Dasha Kumar Kulurumotlakatla, Tholkappiyan Ramachandran, Yedluri Anil Kumar, D. Amaranatha Reddy, K. V. G. Raghavendra, Asma A. Alothman, Sunkara Srinivasa Rao
Summary: Nickel molybdate oxide and tungsten trioxide have potential as electrode materials for supercapacitors, but their poor conductivity and fast capacitance fading limit their performance. By building a hierarchical nanoflower structure, the electrochemical performance of the supercapacitor is enhanced.
JOURNAL OF PHYSICS AND CHEMISTRY OF SOLIDS
(2024)
Article
Chemistry, Multidisciplinary
Elnaz Saadinia, Mohammad Almasi Kashi, Amir H. Montazer
Summary: Fe-based nanowires containing nonmagnetic elements, fabricated using a pulse electrodeposition method in porous anodic alumina membranes, exhibit magnetic tunability. The magnetic properties of Fe100-xSnx NW arrays, with a diameter of about 35 nm, such as coercivity and squareness values, decrease with increasing Sn content. The structure of the FeSn NWs, dominated by Fe or FeSn alloy crystal phase, can be either single domain or pseudo-single domain states depending on the Sn content.
JOURNAL OF PHYSICS AND CHEMISTRY OF SOLIDS
(2024)
Article
Chemistry, Multidisciplinary
Xinkai Liu, Tingting Liu, Yuanliang Zhou, Jing Wen, Jinmei Dong, Chenggong Chang, Weixin Zheng
Summary: CuS-Mg/S-BC composites modified by one-pot sulfurization exhibited higher removal efficiency in adsorption and photocatalytic removal of dyes, thanks to the functional groups and vacant sites formed at the interface for enhanced adsorption and photon capture.
JOURNAL OF PHYSICS AND CHEMISTRY OF SOLIDS
(2024)
Article
Chemistry, Multidisciplinary
Yixing Hao, Fang Zhu, Hao Cheng, Sridhar Komarneni, Jianfeng Ma
Summary: A magnetic porous composite catalyst synthesized from CoFe2O4 and CuS showed high degradation efficiency for organic pollutants under visible light conditions, using non-radical degradation as the main pathway.
JOURNAL OF PHYSICS AND CHEMISTRY OF SOLIDS
(2024)