Article
Chemistry, Physical
Song-Lin Tian, Li-Na Song, Li-Min Chang, Wan-Qiang Liu, Huan-Feng Wang, Ji-Jing Xu
Summary: The practical application of lithium-oxygen batteries is limited due to the slow kinetics of oxygen reduction and oxygen evolution, causing high overpotential. A force-field-assisted Li-O-2 battery is established using a MoS2/Pd nanocomposite cathode and a newly developed piezocatalysis system. The introduction of Pd promotes electron transfer and inhibits the complexation of electron-hole pairs, enhancing catalytic activity and reducing overpotentials. The force-assisted strategy allows for adjustable output and input energies, achieving ultra-low charging and high discharging platforms.
ADVANCED ENERGY MATERIALS
(2023)
Article
Chemistry, Physical
Aditya Singh, Monika Moun, Madan Sharma, Arabinda Barman, Ashok Kumar Kapoor, Rajendra Singh
Summary: A facile NaCl-assisted Chemical Vapor Deposition (CVD) method was used to synthesize high-quality MoS2 on different substrates, with sapphire and SiO2/Si suitable for large flakes growth and mica suitable for continuous films. 1L-MoS2 on sapphire exhibited high crystalline quality, while on other substrates like quartz and bare Si, the quality was poorer. The study highlights the role of NaCl in promoting the formation of seeding promoter and facilitating layer transfer for large-scale synthesis of high-performance optoelectronic devices.
APPLIED SURFACE SCIENCE
(2021)
Article
Chemistry, Physical
Yang Li, Song Jiang, Yong Qian, Xuedong Yan, Jie Zhou, Zheng Yi, Ning Lin, Yitai Qian
Summary: A two-dimensional interspace-confined synthetic strategy was developed to produce MoS2-intercalated graphite hetero-layers composite, showing high reversible Li+ and K+ storage capacities. The existence of hetero-layers was found to enhance ion diffusion rates, providing new ideas for function-integrated materials in energy storage and conversion fields.
Article
Chemistry, Physical
Bingbing Fan, Muhammad Tamoor Ansar, Qianqian Chen, Fengchun Wei, Heng Du, Bo Ouyang, Erjun Kan, Yongqiang Chen, Biao Zhao, Rui Zhang
Summary: This study successfully synthesized MoS2/Ti3C2TX composites with a 2D/2D heterostructure and discovered their optimal microwave absorbing performance. The excellent microwave absorbing performance of the MoS2/Ti3C2TX composites is achieved through the synergistic effects of multiple reflections and scattering, conductive losses and attenuation capacity, and polarization relaxations.
JOURNAL OF ALLOYS AND COMPOUNDS
(2022)
Article
Acoustics
Noemi Contreras-Pereda, Faezeh Moghzi, Javier Baselga, Haixia Zhong, Jan Janczak, Janet Soleimannejad, Renhao Dong, Daniel Ruiz-Molina
Summary: The research on ultrasound-assisted delamination of 2D layered coordination polymer crystals led to stable nanosheet colloidal water suspensions, showing higher catalytic activities compared to their bulk counterparts. This highlights the potential of liquid phase exfoliation combined with suitable synthetic design of 2D coordination polymers to enhance functional properties and catalytic active sites.
ULTRASONICS SONOCHEMISTRY
(2021)
Article
Chemistry, Multidisciplinary
Lei Wang, Xiong Zhang, Yanan Xu, Chen Li, Wenjie Liu, Sha Yi, Kai Wang, Xianzhong Sun, Zhong-Shuai Wu, Yanwei Ma
Summary: A stable thermodynamic heterostructure of 1T-MoS2/d-Ti3C2Tx is prepared, leveraging the advantages of TBA(+) intercalation and extra-large interlayer spacing to achieve outstanding rate performance. The resulting lithium-ion capacitor demonstrates remarkable electrochemical performance with high energy density and power density, as well as excellent capacity retention after cycling.
ADVANCED FUNCTIONAL MATERIALS
(2021)
Article
Nanoscience & Nanotechnology
Ayman Rezk, Aisha Alhammadi, Wafa Alnaqbi, Ammar Nayfeh
Summary: In this work, conductive atomic force microscopy (cAFM) was used to investigate the charge injection process from a nanoscale tip to a single isolated bilayer 2D MoS2 flake. The study provided insights into the charge trapping/de-trapping mechanisms at the MoS2/SiO2 interface. The results showed a sufficient window to differentiate between two states, indicating memory behavior. The study also discussed the physics behind charge entrapment and its contribution to tunneling mechanisms.
Article
Chemistry, Physical
Xuegang Wei, Xiaqing Zhang, Salamat Ali, Jiatai Wang, Yongjie Zhou, Hao Chen, Guangan Zhang, Jing Qi, Deyan He
Summary: The carbon intercalated MoS2 (C-MoS2) has been found to possess excellent electronic transport properties and catalytic activity for photocatalytic water splitting. The heterostructure photocatalyst of C-MoS2@g-C3N4 exhibits a high H2 evolution rate of 157.14 μmolg(-1)h(-1) with 5 wt% C-MoS2. This can be attributed to the intercalated conductive carbon layers in MoS2, which promote efficient charge separation and transfer as well as increased activities of the edge S atoms for H2 evolution.
INTERNATIONAL JOURNAL OF HYDROGEN ENERGY
(2023)
Article
Materials Science, Multidisciplinary
Liujing Li, Tingting Liu, Zhongyuan Zhou, Peiji Guo, Xiaofeng Li, Shaolong Wu
Summary: This research reports a facile and low-cost method to decorate Si photocathodes with Ag-Pt nanoparticles, which significantly enhance the hydrogen evolution reduction kinetics without degrading the optical performance. This study opens a new opportunity for photo-assisted decoration of various alloy NPs on morphology-varying photoelectrodes.
SCIENCE CHINA-MATERIALS
(2022)
Article
Engineering, Environmental
Krishnendu Roy, Soumyajit Maitra, Dibyendu Ghosh, Praveen Kumar, Pooja Devi
Summary: This study demonstrates the activation of the basal plane of MoS2 by heterostructuring with 2D MoSe2 for enhanced photoelectrochemical HER. The MoS2/MoSe2 heterostructure exhibits higher photocurrent density, incident photon-to-current efficiency, and H2 evolution rate compared to pristine MoS2. Theoretical calculations support these experimental findings.
CHEMICAL ENGINEERING JOURNAL
(2022)
Article
Chemistry, Physical
Jun Gong, Zheye Zhang, Zhiping Zeng, Wenjun Wang, Lingxuan Kong, Jiyang Liu, Peng Chen
Summary: Thin 2D materials at atomic scale have transformed various fields, but their applications are hindered by the lack of scalable production methods. A new strategy using amphiphilic graphene quantum dots to exfoliate 2D materials and form vdWHs shows enhanced electrocatalytic performance for hydrogen evolution reaction. This study not only provides a new method for preparing ultrathin 2D microsheets, but also reveals the potential of GQD-based vdWHs as non-precious electrocatalysts.
Article
Computer Science, Information Systems
Steven Wandale, Koichi Ichige
Summary: This study proposes a sparse array selection method assisted by simulated annealing algorithm for deep learning, which reduces the computational complexity of data generation, and improves the accuracy of array selector and DOA estimation performance.
Article
Nanoscience & Nanotechnology
Livia Janice Widiapradja, Taewook Nam, Yeonsu Jeong, Hye-Jin Jin, Yangjin Lee, Kwanpyo Kim, Sangyoon Lee, Hyungjun Kim, Heesun Bae, Seongil Im
Summary: This study fabricated nonvolatile CIM FETs with MoS2 channel and hetero-stack bilayer oxide dielectrics, achieving program and erase states with a low pulse gate voltage below +/- 7 V. Compared to other CIM FET devices with tri-layer dielectric, the hetero-stack oxide bilayer demonstrated lower operating voltages and less process complexity, making it an optimum device for long-term memory switching of an OLED pixel.
ADVANCED ELECTRONIC MATERIALS
(2021)
Article
Chemistry, Physical
Mengmeng Wang, Dan Yuan, Qinhua Su, Lei Sun, Shuying Xu, Hui Song, Shungang Wan
Summary: Designing an efficient non-noble metal photocatalyst, the microstructural refinement of 1D Cd0.2Zn0.8S nanorod was induced by doping with 2D MoS2@MoOy layer. The optimized composite showed a maximum H2 production rate of 186 mmol g-1 h-1, and the apparent quantum yields were 10.3% and 15.6% at 365 nm and 420 nm, respectively. The tight S-scheme heterojunction and the presence of active sulfur coordinated-Mo5 thorn contributed to the improved catalytic activity for hydrogen evolution.
INTERNATIONAL JOURNAL OF HYDROGEN ENERGY
(2023)
Article
Materials Science, Multidisciplinary
Muhammad Younis, Muhammad Waqas, Muhammad Awais, Yasir Abbas, Misbah Mirza, Muhammad Safdar, Muhammad Tariq
Summary: Indium-intercalated zirconium diselenide microflowers were successfully prepared using solvothermal method with the assistance of alginic acid biomolecule. The intercalation of Indium into 2D ZrSe2 nanostructures improved the photocatalytic performance for CO2 conversion.
Article
Chemistry, Multidisciplinary
Matthew Gebert, Semonti Bhattacharyya, Christopher C. Bounds, Nitu Syed, Torben Daeneke, Michael S. Fuhrer
Summary: We demonstrate a large-area passivation layer for graphene by transferring ultrathin amorphous Ga2O3 synthesized on liquid Ga metal. The passivated graphene maintains its high mobility and shows reduced resistivity over a range of temperatures, thanks to the interplay of Ga2O3's high-dielectric-constant screening and its high characteristic phonon frequencies. Ga2O3 passivation also protects graphene from further processing like plasma-enhanced atomic layer deposition of Al2O3, as indicated by Raman spectroscopy and electrical measurements.
Article
Chemistry, Multidisciplinary
Xiangyang Guo, Chung Kim Nguyen, Aishani Mazumder, Yichao Wang, Nitu Syed, Enrico Della Gaspera, Torben Daeneke, Sumeet Walia, Samuel J. Ippolito, Ylias Sabri, Yongxiang Li, Ali Zavabeti
Summary: Various non-stratified two-dimensional (2D) materials can be obtained from liquid metal surfaces that are not naturally accessible. These materials have high-quality oxide layers that can be transferred onto desired substrates. The liquid metal-derived 2D oxides have versatile applications, but their gas-sensing properties remain underexplored.
Article
Chemistry, Multidisciplinary
Ruohan Yu, Jialuo Han, Yuan Chi, Jiewei Zheng, Richard Fuchs, Mohammad B. Ghasemian, Md. Arifur Rahim, Shi-Yang Tang, Guangzhao Mao, Kourosh Kalantar-Zadeh, Jianbo Tang
Summary: Exploring the influence of minor constituents on liquid alloys, this study shows that the presence of solute metals in liquid gallium can significantly affect their electrocapillarity and electrochemistry. The formation of different fractal modes in liquid alloy droplets under controlled voltage and alkaline solution conditions is investigated, with distinct non-branched droplets, unstable fractals, and stable fractals observed. Surface tension measurements, cycle voltammetry, and surface compositional characterizations provide evidence that minor alloy components drastically alter the surface tension, electrochemical oxidation, and oxide dissolution processes. These findings offer promising opportunities for harnessing the tunability and functionality of liquid metals.
ADVANCED FUNCTIONAL MATERIALS
(2023)
Article
Chemistry, Multidisciplinary
Jiewei Zheng, Astha Sharma, Tushar Kumeria, Yuan Chi, Mohammad B. B. Ghasemian, Guangzhao Mao, Jianbo Tang, Priyank Kumar, Md. Arifur Rahim, Kourosh Kalantar-Zadeh
Summary: Liquid metals provide new dimensions for controlling and governing reactions. Solutes in liquid metals can be used to enhance and tune interfacial reactions. In this study, zinc (Zn) is shown to enrich the interfacial area for the synthesis of highly crystalline and porous ZIF-8. The highest reaction rate and best quality ZIF-8 are achieved when a eutectic liquid metal system of Zn with gallium (Ga) is implemented.
ADVANCED FUNCTIONAL MATERIALS
(2023)
Article
Chemistry, Physical
Yaoheng Liang, Xuejun Xu, Fangzheng Yuan, Yinlei Lin, Yisheng Xu, Yuyuan Zhang, Dongchu Chen, Wenyi Wang, Huawen Hu, Jian Zhen Ou
Summary: In this study, graphene oxide was used as an additive to transform the microporous structure of biochar into mesopores, enhancing its adsorption capacity and wastewater treatment ability. The incorporation of graphene oxide not only improved the pore structure of biochar, but also increased its interaction with pollutants, leading to improved adsorption performance.
Article
Engineering, Environmental
Zhenbang Cao, Yuan Chi, Junma Tang, Dorna Esrafilzadeh, Jianbo Tang, Md. Arifur Rahim, Donald S. Thomas, Mohammad Tajik, William A. Donald, Kourosh Kalantar-Zadeh
Summary: In this study, a gallium-ethylene glycol system was used to break down organic bonds and produce hydrogen gas. By applying mechanical agitation, an in-situ monitoring approach was established to analyze the gaseous products and the post-reaction mixture. The results showed that gallium could continuously and selectively produce hydrogen gas and also generate alkanes and alkenes. This study provides a platform to explore alternative strategies for hydrogen production and organic transformation using liquid metals.
CHEMICAL ENGINEERING JOURNAL
(2023)
Article
Chemistry, Physical
Damon M. de Clercq, Jiong Yang, Muhammad Hanif, Jessica Alves, Jiale Feng, Michael P. Nielsen, Kourosh Kalantar-Zadeh, Timothy W. Schmidt
Summary: Hybrid inorganic-organic semiconducting devices based on monolayer transition metal dichalcogenides (TMDs) have high radiative efficiencies and can form flexible P-N junctions, but the understanding of excitons and charges at the interface between TMDs and organic systems is still limited.
JOURNAL OF PHYSICAL CHEMISTRY C
(2023)
Article
Nanoscience & Nanotechnology
Maedehsadat Mousavi, Mohammad B. Ghasemian, Mahroo Baharfar, Mohammad Tajik, Yuan Chi, Guangzhao Mao, Kourosh Kalantar-Zadeh, Jianbo Tang
Summary: Liquid metal-electrolyte can be used for self-deposition of low-dimensional nanomaterials. The liquid metal-driven interfacial growth of metal tellurides was explored using eutectic gallium-indium (EGaIn) as the liquid metal and specific cation pairs as precursors. The deposited materials consisted of metal telluride and tellurium, and their properties depended on the metal ion type and the metal-to-tellurium ion ratios. The synthesized materials showed promising potential as electrode modifiers, increasing the electroactive surface area of unmodified electrodes and demonstrating remarkable activity for electrochemical reactions.
ACS APPLIED MATERIALS & INTERFACES
(2023)
Review
Chemistry, Multidisciplinary
Vi Khanh Truong, Andrew Hayles, Richard Bright, Trong Quan Luu, Michael D. Dickey, Kourosh Kalantar-Zadeh, Krasimir Vasilev
Summary: The proliferation of drug resistance in microbial pathogens poses a significant threat to human health. Liquid metal nanoparticles, particularly gallium-based ones, show promise in combating this problem due to their distinctive properties, high antimicrobial efficacy, and low toxicity. The unique bactericidal mechanism of gallium liquid metal can bypass emerging drug resistance mechanisms, making it a valuable strategic pathway in the battle against antimicrobial resistance.
Article
Chemistry, Physical
Yaoheng Liang, Fangzheng Yuan, Xuejun Xu, Xiaowen Wang, Huawen Hu, Jian Zhen Ou
Summary: Surface modification of carbon nanomaterials with polydopamine can improve their toxicity and enhance their adsorption capacity and selectivity, making them suitable for water pollutant removal.
Article
Engineering, Environmental
Zong-Tao Li, Bo-Jia Li, Jia-Sheng Li, Cun-Jiang Song, Xin-Rui Ding, Hai-Long Yuan, Bin-Hai Yu, Yong Tang, Jian-Zhen Ou, Romain Gautier, Hong -Lei Ji, Hao-Chung Kuo
Summary: This study successfully improved the photoluminescence energy outcoupling of CsPbBr3/Cs4PbBr6 perovskite phosphor by utilizing a nano-porous matrix. By optimizing the nanopore-packing perovskite particles structure, an enhanced photoluminescence intensity was achieved. The study provides a general guide for efficient perovskite phosphors utilizing the nano-porous matrix to enable the internal resonant scattering effect.
CHEMICAL ENGINEERING JOURNAL
(2023)
Article
Materials Science, Multidisciplinary
Moonika Sari Widjajana, Shih-Hao Chiu, Yuan Chi, Mahroo Baharfar, Jiewei Zheng, Mohammad B. Ghasemian, Saroj Kumar Bhattacharyya, Jianbo Tang, Md. Arifur Rahim, Kourosh Kalantar-Zadeh
Summary: To optimize the performance of thermoelectric materials, liquid metal-based processes are used to engineer their characteristics. In this study, indium (In) was introduced into bismuth (Bi) using a liquid metal-based process to investigate the thermoelectric properties. The sample with 2% indium concentration showed the highest Seebeck coefficient and electrical resistivity. The thermal conductivity decreased with increasing indium concentration up to 5%, and then showed a reverse trend. With a 5% indium concentration, the Bi-In system exhibited the highest figure of merit (zT) value, nearly twice that of pristine bismuth, due to the crystal modalities and diffraction peaks formed in the pool of bismuth. This study demonstrates a feasible and cost-effective approach for designing thermoelectric materials through liquid metal-enabled processes.
JOURNAL OF MATERIALS CHEMISTRY C
(2023)
Article
Materials Science, Multidisciplinary
Steffi Y. Woo, Alberto Zobelli, Robert Schneider, Ashish Arora, Johann A. Preuss, Benjamin J. Carey, Steffen Michaelis de Vasconcellos, Maurizia Palummo, Rudolf Bratschitsch, Luiz H. G. Tizei
Summary: The interlayer interaction of excitons in twisted van der Waals hetero- and homostructures is determined by the moire twist angle. The influence of twist angle on the excitonic absorption in twisted bilayer tungsten diselenide (WSe2) has been studied using electron energy-loss spectroscopy. Atomic-resolution imaging and spectral analysis revealed a blueshift in the high-energy excitonic peak C with increasing twist angle. The combined experiment/theory investigation provides valuable insight into the physical origins of high-energy absorption resonances in twisted bilayers.
Article
Chemistry, Multidisciplinary
Mohammad B. Ghasemian, Yifang Wang, Francois-Marie Allioux, Ali Zavabeti, Kourosh Kalantar-Zadeh
Summary: Liquid metal (LM) droplets are being used in various applications such as catalysis, sensing, and flexible electronics. To modulate the electronic properties of LM, a method for on-demand alternating electronic properties is necessary. In this study, n-type MoOx and MoOxSy semiconductors were deposited on the surface of EGaIn LM droplets under mechanical agitation, resulting in the formation of oxide and oxysulfide layers. The comprehensive study of electronic and optical properties revealed a decrease in band gap, leading to deeper n-type doping of the materials.
Article
Automation & Control Systems
Shih-Hao Chiu, Mahroo Baharfar, Yuan Chi, Moonika Sari Widjajana, Zhenbang Cao, Francois-Marie Allioux, Jianbo Tang, Md. Arifur Rahim, Kourosh Kalantar-Zadeh
Summary: Thiol molecules are used to functionalize the surface of gallium particles, reducing oxidation and providing electrical conductivity. These modified particles are then used to develop soft devices for gas, exhalation, and flex sensing. This study explores the possibility of creating conductive mixes using organic molecules and liquid metal-based nano-/microparticles, and the potential for fabricating multifunctional sensors.
ADVANCED INTELLIGENT SYSTEMS
(2023)
