Article
Chemistry, Physical
Dong Shi, Shufen Tan, Yajun Ji, Faxue Lu, Junnan Yao, Lijun Pei
Summary: A three-functional chestnut-like CoZn-LDH was prepared using a simple one-step solvothermal method, showing excellent performance for energy conversion and storage. The as-prepared product exhibited outstanding water splitting performance (eta 10 = 160 mV for hydrogen evolution reaction and eta 50 = 330 mV for oxygen evolution reaction) and high areal specific capacitance (2.24 F cm-2 at 10 mA cm-2). Furthermore, a new viewpoint explaining the coexistence of three functions (oxygen evolution reaction, hydrogen evolution reaction, and capacitive performance) in chestnut-like CoZn-LDH was proposed based on electrochemical measurements. Overall, this work sheds light on the construction of multifunctional materials.
JOURNAL OF ALLOYS AND COMPOUNDS
(2023)
Article
Engineering, Electrical & Electronic
K. Ramachandran, M. Geerthana, P. Maadeswaran, M. Navaneethan, S. Harish, R. Ramesh
Summary: In order to enhance the photoelectrochemical water-splitting performance of the alpha-Fe2O3 photoanode, the alpha-Fe2O3/AmTiO2 heterojunction was synthesized on a fluorine-doped tin oxide substrate with improved charge transport properties. The amorphous TiO2 in the heterojunction provides high electrical conductivity and reduces recombination rates of photoexcited charge carriers, leading to enhanced water-splitting performance under solar illumination. These results demonstrate a promising approach for the preparation of alpha-Fe2O3/AmTiO2 heterojunction for efficient water-splitting applications.
JOURNAL OF MATERIALS SCIENCE-MATERIALS IN ELECTRONICS
(2022)
Article
Biochemistry & Molecular Biology
Denghu Wei, Leilei Xu, Zhiqi Wang, Xiaojie Jiang, Xiaxia Liu, Yuxue Ma, Jie Wang
Summary: Due to their high capacities, iron-based anode materials have attracted widespread attention for lithium-ion batteries, but they suffer from serious capacity decay. Designing nanostructures combined with carbon is an effective approach to improve cycling stability. In this study, ultra-small Fe2O3 nanoparticles loaded on a carbon framework were synthesized, which exhibited good electrochemical performance as an anode material.
Article
Chemistry, Physical
Lei Wang, Wei Song, Binju Wang, Yan Zhang, Xin Xu, Jing Wu, Cong Gao, Jia Liu, Xiulai Chen, Jinghua Chen, Liming Liu
Summary: A one-pot enzymatic-chemical cascade route was developed to synthesize 2-Hydroxyacetophenone (2-HAP) with a final yield of 92.7%. The introduction of stereospecific carbonyl reductases allowed for further transformation of 2-HAP into (S)- and (R)-1-phenyl-1,2-ethanediol. This method shows potential for synthesizing other valuable chemicals by cascading spontaneous chemical and enzymatic reactions.
Article
Chemistry, Physical
Omid Mohammadi, Yaser Bahari, Ahmad Ahmadi Daryakenari, Fatemeh Jalali Koldeh, Xiaoran Zhang, Zhi Qun Tian, Pei Kang Shen
Summary: Designing non-precious and long-lasting electrocatalysts for hydrogen evolution reaction (HER) is crucial for sustainable energy generation. In this study, ternary NiCoP nanostructures were synthesized and showed superior HER performances compared to binary alloys.
INTERNATIONAL JOURNAL OF HYDROGEN ENERGY
(2022)
Article
Chemistry, Physical
Sankar Sekar, S. Brindha Devi, S. Maruthasalamoorthy, T. Maiyalagan, Deuk Young Kim, Sejoon Lee, R. Navamathavan
Summary: In this study, reduced graphene oxide decorated-cobalt disulfide (rGO-CoS2) nanocomposites were synthesized via a one-step hydrothermal method. The nanocomposites exhibited excellent hydrogen evolution reaction (HER) activities with low overpotential and small Tafel slope, providing a promising scheme for developing efficient rGO-CoS2 electrocatalysts in future green energy technology.
INTERNATIONAL JOURNAL OF HYDROGEN ENERGY
(2022)
Article
Chemistry, Physical
Zifan Zhang, Yuan Lin, Qianwen Liu, Xuxu Wang, Xianzhi Fu, Wenyue Su
Summary: Developing high-efficiency photocatalysts for CO2 photoreduction is crucial for addressing energy and pollution issues. The synthesized α-Fe2O3 modified La2Ti2O7 significantly improved the activity and stability for photocatalytic CO2 reduction, with enhanced charge separation efficiency. The optimized composite exhibited excellent CO2 reduction activity, providing novel insights into the design and fabrication of high-performance photocatalysts for solar-to-energy applications.
CATALYSIS SCIENCE & TECHNOLOGY
(2021)
Article
Engineering, Electrical & Electronic
N. Manikandan, B. Lakshmi, S. Shivakumara
Summary: In this study, porous hematite nanostructures were synthesized and their electrochemical performance as supercapacitors was evaluated. The results showed that the porous alpha-Fe2O3 nanorods exhibited high discharge capacitance and cyclic stability.
JOURNAL OF MATERIALS SCIENCE-MATERIALS IN ELECTRONICS
(2022)
Article
Engineering, Electrical & Electronic
Chang Xu, Zehua Jin, Jinggang Cui, Fan Guo, Ruisheng Hu, Wanwan Meng, Jianan Hu, Xiwei Shen
Summary: A series of novel and stable BiFeO3/alpha-Fe2O3 type-II heterojunction photocatalysts with different weight contents of alpha-Fe2O3 were prepared using a one-step grinding method. Various analytical techniques were used to study the structure, surface state, optical properties, and interfacial interactions of the catalysts. The results showed that the one-step grinding method successfully formed type-II heterojunction between BiFeO3 and alpha-Fe2O3, leading to enhanced electron transformation, separation of electron-hole pairs, and visible-light absorption. The BiFeO3/alpha-Fe2O3-30% composite exhibited the highest activity, with 85.87% phenol degradation under simulated solar irradiation after 2 hours, significantly outperforming single alpha-Fe2O3 and single BiFeO3. Additionally, the BiFeO3/alpha-Fe2O3-30% heterojunction composite maintained excellent catalytic performance after 3 cycles.
MATERIALS SCIENCE IN SEMICONDUCTOR PROCESSING
(2023)
Article
Nanoscience & Nanotechnology
Li Shiuan Ng, Carice Chong, Xin Yi Lok, Veronica Pereira, Zhi Zhong Ang, Xuemei Han, Haitao Li, Hiang Kwee Lee
Summary: Liquid-liquid interfacial reaction offers a greener and more efficient chemistry, but current methods suffer from the need for a large amount of solvent/reactant/emulsifier and poor reaction performance. Researchers have now achieved an efficient interfacial reaction by creating a magnetic-responsive microscale liquid-liquid interface and utilizing its dynamic spinning motion to rapidly converge biphasic reactants. This design boosts reaction efficiency and equilibrium constant, providing enormous opportunities for efficient multiphase reactions in various applications.
ACS APPLIED MATERIALS & INTERFACES
(2022)
Article
Chemistry, Physical
Fuguang Liu, Zhonghan Feng, Xinyue Zhang, Liang Cui, Jingquan Liu
Summary: Ru@Fe-Ni(OH)2/NF catalyst with excellent activity and stability was prepared using a one-step hydrothermal method.
JOURNAL OF COLLOID AND INTERFACE SCIENCE
(2023)
Article
Materials Science, Ceramics
Shipra Choudhary, Aditi Bisht, Satyabrata Mohapatra
Summary: This study reports the use of magnetically separable alpha-Fe2O3/ZnFe2O4/ZnO ternary hybrid nanodiscs for solar-driven highly efficient photocatalytic decomposition of toxic organic contaminants. The hybrid nanostructures showed excellent photocatalytic performance under solar light illumination, efficiently decomposing organic dyes and demonstrating reusability and easy magnetic separation. In-situ scavenger studies identified center dot OH radicals as the main active radicals in the photocatalysis process.
CERAMICS INTERNATIONAL
(2021)
Article
Chemistry, Analytical
Yuting Wang, Tianqi Wang, Wenyuan Pei, Feng Li, Ying Yang, Hui Yu, Xiangting Dong
Summary: This study presents a new strategy to construct TiO2 @POMs@ alpha-Fe2O3 one-dimensional tandem heterojunctions materials through one-step coaxial electrospinning. Three series of TiO2 @POMs@ alpha-Fe2O3 core-middle-shell nanoribbons with different Keggin-type POMs were synthesized. Gas sensing performances of the nanoribbons were investigated, showing significantly improved sensitivity and selectivity to acetone. The enhancement can be attributed to the addition of POMs electron acceptors, the construction of tandem heterojunctions, and the one-dimensional nano-structure.
SENSORS AND ACTUATORS B-CHEMICAL
(2023)
Article
Nanoscience & Nanotechnology
Marlen Gonzalez-Reyna, Aaron Rodriguez-Lopez, Juan Francisco Perez-Robles
Summary: Carbon nanostructures with metal support are commonly used in electrochemical processes for their high surface area, chemical stability, and catalytic performance. Encapsulating individual metallic nanoparticles can protect them from corrosion. Among carbon nanostructures, graphene, carbon nanotubes, and carbon nanospheres are popular choices, with carbon nanospheres showing better catalytic activity. However, the synthesis process for carbon nanospheres with metal inside can be time-consuming and expensive. A one-step chemical vapor deposition process has been proposed for the advantageous synthesis of carbon nanospheres encapsulating an iron-nickel alloy. This material shows potential applications in environmental and energy processes, with improved catalytic activity and specific capacitance compared to other materials like graphene decorated with FeNi alloys.
Article
Materials Science, Multidisciplinary
Fengxian Cao, Huiwen Chen, Shibo Wang, Pengxu Chen, Chenwei Zhu, Zhang Lan, Weihai Sun, Yunlong Li, Jihuai Wu
Summary: By in-situ forming two-dimensional perovskites on the surface of three-dimensional perovskite films through a self-assembly method, along with the deposition of hole transporting material simultaneously, the fabrication process of PSCs is greatly simplified. This approach reduces trap states in devices and enhances the performance of the solar cells, leading to an increase in average power conversion efficiency by 10% and maintaining more than 82% of initial PCE after 672 hours of exposure under full 1-sun simulation.
MATERIALS TODAY PHYSICS
(2022)
Article
Chemistry, Multidisciplinary
Difeng Yin, Yucen Li, Lingling Xia, Wenbo Li, Wei Chu, Jianping Yu, Miao Wu, Ya Cheng, Ming Hu
Summary: This study demonstrates an automated solid-liquid synthesis system using 3D microfluidic technology for gadopentetate dimeglumine with high efficiency. In-line analysis was conducted using UV-vis spectrometer to achieve automation of the system.
CHINESE CHEMICAL LETTERS
(2022)
Article
Chemistry, Physical
Chunjing Shi, Wei Zhang, Qi Dang, Ming Hu
Summary: The integration of power supply and sensing parts using Prussian blue film has the potential to miniaturize wireless ocean sensors. However, the by-product OH- ions can lead to corrosion of the film. In this study, a polydopamine layer is applied to the film to prevent corrosion. Experiments show that the modified film efficiently transfers electrons and can be used to power a LED in seawater. The voltage of the electric current is correlated with seawater salinity and temperature, indicating its potential as a sensor.
MOLECULAR SYSTEMS DESIGN & ENGINEERING
(2022)
Article
Chemistry, Analytical
Aodong Zhang, Jian Xu, Yucen Li, Ming Hu, Zijie Lin, Yunpeng Song, Jia Qi, Wei Chen, Zhaoxiang Liu, Ya Cheng
Summary: We have demonstrated a hybrid laser microfabrication approach that combines ultrafast laser-assisted chemical etching and carbon dioxide laser-induced in situ melting techniques to fabricate 3D complex hollow microstructures in fused silica glass. With this approach, large-scale fused silica microfluidic chips with integrated 3D cascaded micromixing units can be reliably manufactured. The manufactured chip showed high-performance on-chip mixing and continuous-flow photochemical synthesis, indicating its powerful capability for versatile fabrication of highly transparent all-glass microfluidic reactors for on-chip photochemical synthesis.
Article
Chemistry, Multidisciplinary
Yining Jia, Chunjing Shi, Wei Zhang, Wei Xia, Ming Hu, Rong Huang, Ruijuan Qi
Summary: In this study, a catalyst of iron single atoms anchored on nitrogen-doped carbon matrix/ carbon nanotube hybrid supports was successfully prepared. It exhibits low cost, high selectivity, and high activity in the oxygen reduction reaction. The catalyst showed excellent activity and stability, making it a potential replacement for the latest commercial Pt/C catalyst.
Article
Multidisciplinary Sciences
Zhoudong Yang, Boya Wang, Yongjin Chen, Wanhai Zhou, Hongpeng Li, Ruizheng Zhao, Xinran Li, Tengsheng Zhang, Fanxing Bu, Zaiwang Zhao, Wei Li, Dongliang Chao, Dongyuan Zhao
Summary: This study investigates the reversible nature of the sulfur oxidation reaction (SOR) in sulfur-based aqueous batteries (SABs) by activating the elaborate mesocrystal NiS2 (M-NiS2). By utilizing a unique 6e(-) solid-to-solid conversion mechanism, an unprecedented SOR efficiency of ca. 96.0% is achieved. The research reveals the importance of the kinetics and thermodynamics in determining the SOR efficiency, and provides insights for the development of high-energy aqueous batteries.
NATIONAL SCIENCE REVIEW
(2023)
Article
Chemistry, Multidisciplinary
Tao Zhao, Xin Wang, Zhihao Sun, Haifeng Wang, Pengpeng Qiu, Qi Xiao, Wan Jiang, Lianjun Wang, Fanxing Bu, Wei Luo
Summary: A kinetically mediated micelle assembly strategy is presented to synthesize hollow UiO-66(Ce) single crystals with large radial mesopores and high surface area, which exhibit excellent photocatalytic performance for H-2 generation.
ADVANCED FUNCTIONAL MATERIALS
(2023)
Article
Chemistry, Multidisciplinary
Ruizheng Zhao, Xusheng Dong, Pei Liang, Hongpeng Li, Tengsheng Zhang, Wanhai Zhou, Boya Wang, Zhoudong Yang, Xia Wang, Lipeng Wang, Zhihao Sun, Fanxing Bu, Zaiwang Zhao, Wei Li, Dongyuan Zhao, Dongliang Chao
Summary: The poor thermodynamic stability and sluggish electrochemical kinetics of metallic Zn anode in aqueous solution restrict its practical application. To overcome these problems, zincophilic surface modification strategies have been developed. However, there is still a lack of understanding regarding the selection of zincophilic sites based on the metrics of thermodynamics inertia and kinetics zincophilia. In this study, hetero-metallic interfaces are optimized to prioritize the Bi@Zn interface, which exhibits high efficiency due to its thermodynamics inertia and kinetics zincophilia. A practical metric for prioritizing zincophilic sites is proposed, and the Bi@Zn anode shows excellent performance in terms of low overpotential and stable cycle life.
ADVANCED MATERIALS
(2023)
Article
Chemistry, Multidisciplinary
Qiu He, Zhaohuai Li, Mingwei Wu, Ming Xie, Fanxing Bu, Huazhang Zhang, Ruohan Yu, Liqiang Mai, Yan Zhao
Summary: Uniform porous ionic dividers with functionalized surfaces can solve Li-dendrite issues in Li-metal batteries. In this study, single metal and nitrogen co-doped carbon-sandwiched MXene nanosheets were fabricated, which eliminated Li dendrites through redistributing the Li-ion flux, conducting Li ions, and obstructing the growth path of Li dendrites. With a Zn-NC@MXene-coated PP divider, the Li||Li symmetric battery showed ultralow overpotential and long cycle life. The well-designed multifunctional ion divider also showed potential for applications in Li||LiFePO4 and Li||sulfur batteries.
ADVANCED MATERIALS
(2023)
Article
Materials Science, Composites
Xianyan Ren, Xinyuan Wang, Xin Yang, Ming Hu, Hai Hang Xie, Chao Wang
Summary: Zero-dimensional nitrogen-doped carbon dots (N-CDs) were used as a hard template in the polymerization system to synthesize small-sized, monodisperse, and highly conductive N-CDs/PANI nanocomposites. These nanocomposites were then added to acrylic resin, resulting in coatings with excellent corrosion resistance and antifouling performances. Compared to PANI, the N-CDs/PANI showed significantly improved anticorrosion and antifouling properties. The N-CDs/PANI-AC coating exhibited better adhesion and higher protection efficiency, with a 5 times increase in the protection efficiency of the AC resin coating.
POLYMER COMPOSITES
(2023)
Article
Chemistry, Multidisciplinary
Lingling Xia, Yucen Li, Jiwei Cui, Ming Hu
Summary: Hollow ZIF-8 particles with improved mechanical and chemical stability were synthesized by embedding polyphenol and polyethylene glycol networks. These particles demonstrated high adsorption capacity and efficient degradation of organic dyes under irradiation.
Article
Chemistry, Applied
Qingmeng Xu, Fanxing Bu, Chen Sun, Xiao Huang, Hongjie Luo
Summary: Cellulose nanocrystals (CNCs)/DMSO organogels were carefully investigated in this study, and it was found that metal ions played a vital role in organogel formation, similar to hydrogels. The coordination between cations and DMSO alleviated the influence of cation valence on gel mechanical strength. Both CNCs/DMSO and CNCs/H2O gels exhibited instant thixotropic behavior, making them potentially useful for drug delivery applications.
CARBOHYDRATE POLYMERS
(2023)
Article
Chemistry, Physical
Yuan Tian, Zhiliang Gao, Mengqi Li, Ming Hu, Jingcheng Hao, Jiwei Cui
Summary: We have developed a versatile method for engineering functional polymer nanoparticles (NPs) with tunable sizes, stiffness, and responsiveness using zeolitic imidazolate framework-8 (ZIF-8) NPs as templates. This method allows for the incorporation of various components, including synthetic polymers and biomacromolecules, into ZIF-8 NPs, which are then cross-linked during template removal using different strategies. The reported method offers simple assembly, versatility in polymer components, and excellent control over physicochemical properties of the polymer NPs. The combination of versatile assembly and tunable functions makes these polymer NPs promising for therapeutic delivery.
CHEMISTRY OF MATERIALS
(2023)
Review
Chemistry, Multidisciplinary
Mohamed Barakat Zakaria Hegazy, Fathy Hassan, Ming Hu
Summary: Hofmann-type CN-CPs have the potential to produce functional nanomaterials with nanoscale structures and various functionalities through thermal decomposition and hybridization with other substances. This article reviews the recent developments in this field, including synthesis techniques, properties of nanomaterials, and their potential applications in electrical and energy fields.
Article
Biochemical Research Methods
Miao Wu, Xin Li, Di-Feng Yin, Wei Chen, Jia Qi, Ming Hu, Jian Xu, Ya Cheng
Summary: Materials synthesis in a microfluidic environment allows for flexible and controllable production of various nanostructures, with great potential in chemistry, environmental science, bioengineering, and medicine.
Article
Chemistry, Multidisciplinary
Chunjing Shi, Qi Dang, Wei Zhang, Jiwei Cui, Jian Liu, Ming Hu
Summary: The removal of water from a mixture of water and inorganic solids results in a change in mechanical properties. However, a unique X state, formed by drying up a dough composed of Ni(H2O)(2)[(Ni(CN)(4)]center dot H2O nanosheets and water, shows characteristics different from pure liquids and brittle solids. The X-state mixture exhibits a deformation curve with three linear parts and its deformation is recoverable.
Article
Chemistry, Multidisciplinary
Abu Talha Aqueel Ahmed, Sankar Sekar, Shubhangi S. Khadtare, Nurul Taufiqu Rochman, Bathula Chinna, Abu Saad Ansari
Summary: In this study, MnCo2S4 nanosheet catalyst was successfully synthesized and found to exhibit superior performance in hydrogen evolution. Compared to MnCo2S4, MnCo2S4 showed low overpotentials, moderate Tafel slope, and excellent sustainability. The outstanding performance can be attributed to the increased number of electrochemically active sites and enhanced electronic conductivity on the catalyst surface.
Article
Chemistry, Multidisciplinary
Victor V. Maltsev, Elena A. Volkova, Elizaveta V. Koporulina, Diana D. Mitina, Vladimir L. Kosorukov, Anna I. Jiliaeva, Daniil A. Naprasnikov, Konstantin N. Gorbachenya, Viktor E. Kisel
Summary: The phase relationships, crystal properties and luminescence kinetics of two complex systems were studied, including unit cell parameters, segregation coefficients of impurities, and lifetimes of energy levels.
Article
Chemistry, Multidisciplinary
Xiaoman Zhang, Wangwang Xu, W. J. Meng, Andrew C. Meng
Summary: This study successfully grew high-quality single crystal AlScN nanowires through ultra-high vacuum reactive sputtering technique and characterized their structure and properties. The nanowires exhibit significantly reduced mosaic spread and predominantly single ferroelectric domains, as well as a high piezoelectric constant.
Article
Chemistry, Multidisciplinary
Tom E. de Vries, Elias Vlieg, Rene de Gelder
Summary: Networks are important for describing relationships between people, roads between cities, reactions between chemicals, and other interactions. Bipartiteness, dividing the network into two groups, can facilitate the study of the network's structure. We have developed an algorithm that can find a near-optimal bipartisation within a reasonable time frame and used it to uncover the hidden structure of the CSD cocrystal network.
Article
Chemistry, Multidisciplinary
Chuchu Han, Jing Yang, Xin Zhang, Aisen Li, Jiang Peng
Summary: An elastic crystal based on a photo-reactive acylhydrazone derivative is reported, which exhibits reversible bending behavior under UV irradiation and heating. The crystal undergoes reversible E<->Z isomerization under light and heating conditions. The crystal demonstrates excellent elastic properties and the bending can be controlled to control the output direction of red light.
Article
Chemistry, Multidisciplinary
Lingfeng Zhang, Yu Wang, Yefeng Wang, Shuai Liu, Na Zhang, Mingmin Yang, Haixia Ma, Zhaoqi Guo
Summary: This study designs and synthesizes a series of high-energy salts compounds without heavy metal ions and azide groups. The molecular structures and stability of the compounds are confirmed through single-crystal X-ray diffraction and intermolecular interaction analysis. Furthermore, the thermal stability, energetic properties, and electrical initiation properties of the compounds are investigated, suggesting their potential as primary explosives.
