Article
Materials Science, Multidisciplinary
Jing Zhang, Qin Xu, Yongna Xiao, Sutian Duan, Xiaoguang Yin
Summary: This study obtained two types of three-dimensional titanium dioxide (3D-TiO2) nanotubes with different periodic structures by periodic pulse anodization of high-purity titanium sheets using discontinuous sawtooth waves under specific alternating-voltage (AV) and alternating-current (AC) conditions, and the inner pores of the nanotubes were both in a gourd-like structure. The precise regulation of the structure of the 3D-TiO2 inner pore and outer tube can be achieved by adjusting the amplitude, period time, and duty cycle of the discontinuous sawtooth wave. The gourd-like structure of the internal pore is mainly related to the migration rate of ions under low and high voltage/current and the dissolution rate of oxides on the inner wall of nanotubes. This study provides a new prospect for the application of 3D-TiO2 nanotubes, which have great potential for application in sensors, photocatalysis, and other fields.
ECS JOURNAL OF SOLID STATE SCIENCE AND TECHNOLOGY
(2023)
Article
Chemistry, Physical
Karan Gulati, Mateusz Czerwinski, Marta Michalska-Domanska, Ruben Del Olmo Martinez
Summary: This review discusses and details the influence of electrolyte aging in Ti anodization on the fabrication of controlled nanostructures, as well as its impact on the morphology, chemistry, stability, and application-specific performance of nanostructures.
ADVANCES IN COLLOID AND INTERFACE SCIENCE
(2022)
Article
Materials Science, Multidisciplinary
Paulina Rudzinska, Jakub Wawrzyniak, Katarzyna Grochowska, Jakub Karczewski, Jacek Ryl, Katarzyna Siuzdak
Summary: To meet the increasing global demand for clean electricity, affordable and efficient photoactive semiconductors are constantly being developed. A one-step calcination method combined with hydrogenation has been investigated as an alternative to the time-consuming furnace annealing for crystallization and modification of high-surface titania nanotubes. The evaluation of the crystallinity of the electrode based on Raman and X-ray diffraction, followed by optical and electrochemical investigation, revealed significantly improved performance of the modified material, including over 2.6-fold higher photocurrent densities and enhanced visible light absorption.
MATERIALS SCIENCE AND ENGINEERING B-ADVANCED FUNCTIONAL SOLID-STATE MATERIALS
(2023)
Article
Chemistry, Physical
Devaiah Damma, Dimitrios K. Pappas, Thirupathi Boningari, Panagiotis G. Smirniotis
Summary: Fresh Mn/Ce-TNT and Mn/Sb-TNT catalysts showed good NH3-SCR activity, but a significant decrease in activity was observed after thermal aging, while the Mn/Y-TNT catalyst maintained its good catalytic performance under these conditions.
APPLIED CATALYSIS B-ENVIRONMENTAL
(2021)
Article
Biochemistry & Molecular Biology
Aikaterini Touni, Xin Liu, Xiaolan Kang, Chrysanthi Papoulia, Eleni Pavlidou, Dimitra Lambropoulou, Mihalis N. Tsampas, Athanasios Chatzitakis, Sotiris Sotiropoulos
Summary: Optimized Pt-based anodes are crucial for commercial direct methanol fuel cells and methanol electrolyzers. High surface area Ti supports are found to enhance Pt catalytic activity and utilization. Pt is deposited on black titania nanotubes (bTNTs), Ti felts, and Ti foils using a galvanic deposition process, resulting in electrodes with enhanced catalytic activity for methanol oxidation reaction.
Article
Materials Science, Coatings & Films
Ika Maria Ulfah, Diah Ayu Fitriani, Siti Amalina Azahra, Aghni Ulma Saudi, Muhammad Kozin, Razie Hanafi, Prabowo Puranto, Bambang Sugeng, Yudi Nugraha Thaha, Aga Ridhova, Muhammad Prisla Kamil
Summary: Titanium dioxide nanotubes (TNTs) grown on the surface of titanium implants play a significant role in preventing tissue infection and implant failure. This study investigates the role of different counter electrodes in the formation of TNTs with varying shapes and surface properties. The use of platinum and graphite cathodes results in circular TNTs, while stainless steel cathode leads to hexagonal-shaped tubes with particle debris on the surface. The surface microstructure of TNTs affects their roughness, hydrophilicity, and ability to facilitate the growth of bone-forming apatite during osseointegration.
SURFACE & COATINGS TECHNOLOGY
(2023)
Article
Chemistry, Physical
Lukasz Harynski, Dariusz Czylkowski, Bartosz Hrycak, Jakub Karczewski, Justyna Gumieniak, Agnieszka Kramek, Jacek Ryl, Katarzyna Grochowska, Miroslaw Dors, Katarzyna Siuzdak
Summary: Anodic TiO2 nanotubes have potential for large-scale production due to their high specific surface area and easy growth. In this study, a fast 30-second nitrogen plasma-induced crystallization method was proposed for TiO2 nanotubes. The method showed comparable photoresponse to furnace annealed TiO2 nanotubes without significant changes in their ordered morphology. This method demonstrates promise for reproducible and stable fabrication of photoanodes and could contribute to wider applications of plasma for phase transitions in functional materials.
APPLIED SURFACE SCIENCE
(2023)
Article
Nanoscience & Nanotechnology
Yu Zhao, Ran Lu, Xin Wang, Xiaochen Huai, Caiyun Wang, Yuji Wang, Su Chen
Summary: The study successfully fabricated the H-TNTs/f-Ti composite with enhanced visible light-induced photoelectric response and more hydroxyl functional groups, which can improve the biocompatibility of dental implants and inhibit bacterial growth effectively.
Article
Materials Science, Ceramics
Petronela Pascariu, Corneliu Cojocaru, Mihaela Homocianu, Petrisor Samoila, Cosmin Romanitan, Djourelov Nikolay
Summary: A series of tin (Sn)-doped titania (TiO2) composites were prepared by electrospinning and calcination. The effect of dopant amounts and calcination temperatures on the composition, morphology, and photocatalytic activity of the composites was evaluated. The ([1.5%]Sn:TiO2) composite sintered at 500°C showed remarkable photocatalytic activity with a removal efficiency of about 100% and a rate constant of 9.685 x 10-2 min-1. Structural investigations were conducted to explain the photocatalytic activity towards water decontamination.
CERAMICS INTERNATIONAL
(2023)
Article
Thermodynamics
Kartika Irene, Budi Kristiawan, Koji Enoki, Agung Tri Wijayanta
Summary: This study investigated the thermal characteristics and hydrodynamics behavior of TiO2-CNTs/water hybrid nanofluids for laminar and turbulent conditions. Simulation-based evaluation using a single-phase approach was conducted and the effects of different nanoparticles loading and Reynolds number were analyzed. The results showed that adding CNTs nanoparticles did not significantly affect friction factor enhancement at very low concentrations, and the observed hybrid nanofluids had better thermohydraulic characteristics than water.
NUMERICAL HEAT TRANSFER PART A-APPLICATIONS
(2023)
Article
Chemistry, Multidisciplinary
Kyoung-Suk Moon, Ji-Myung Bae, Young-Bum Park, Eun-Joo Choi, Seung-Han Oh
Summary: This study evaluated the photobiomodulation-based synergistic effects of Pt-coated titania nanotubes (Pt-TiO2 NT) and 850 nm near-infrared (NIR) light on osteogenic performance in vitro and in vivo. The results showed that Pt-TiO2 NTs were biocompatible and the combination with NIR irradiation significantly enhanced osteogenic functionality. The in vivo tests demonstrated overall improved outcomes, confirming the potential of Pt-TiO2 NT and NIR light as a promising technology for implant surgery in dentistry.
Article
Materials Science, Multidisciplinary
Kamran Ahmad, Muhammad Bilal, Muhammad Asim Rasheed, Zahoor Ahmad, Attaulllah Shah, Yaqoob Khan, Abdul Waheed, Abdul Mateen Qasim
Summary: Titania nanotubes (TNTs) were synthesized by anodization and electrochemically reduced in this study. The reduction treatment efficiently removed defects in TNTs and could be used for solar cell application under reduced/absence of oxygen conditions.
APPLIED PHYSICS A-MATERIALS SCIENCE & PROCESSING
(2021)
Article
Environmental Sciences
Monica Cerro-Lopez, Lucila I. Castro-Pastrana, Jessica Campos-Delgado, Efrain Rubio-Rosas, Erika Bustos, Carlos A. Martinez-Huitle
Summary: Mesostructured PbO2/TiO2 materials were synthesized for electrocatalysis and photoelectrocatalysis to remove diclofenac. TiO2NTs/PbO2 electrode showed effective electrocatalytic removal of DCF at neutral and alkaline pH, while TiO2NTs:PbO2 exhibited enhanced photoelectrocatalytic activity when exposed to UV irradiation. COD analysis confirmed higher degradation efficiency in photoelectrocatalysis.
ENVIRONMENTAL RESEARCH
(2023)
Article
Chemistry, Physical
P. Cheranmadevi, K. Saranya, P. Agilan, N. Rajendran
Summary: The corrosion resistance and high strength-to-density ratio of titanium and its alloys make them ideal materials for orthopedic implants. In this study, a combinational treatment of titanium was conducted to improve its corrosion resistance and promote osseointegration. The results showed that gadolinium-coated titanium nanotubes exhibited better corrosion resistance and enhanced cell viability compared to bare titanium. The findings suggest that gadolinium-coated titanium nanotubes have potential applications in the treatment of bone-related disorders.
APPLIED SURFACE SCIENCE
(2023)
Article
Neurosciences
Dongya Wu, Xin Li
Summary: Functional connectivity (FC) network reflects the functional interactions between brain regions and is thought to be based on the underlying structural connectivity (SC) network. However, direct SC cannot fully capture individual differences in FC. In this study, a graph propagation network (GPN) was designed to model information propagation between brain regions based on SC network. Results show that GPN incorporating effects of multi-hop indirect SCs greatly enhances the ability to predict individual FC network and reveals important intermediate brain regions.
HUMAN BRAIN MAPPING
(2023)
Article
Chemistry, Multidisciplinary
Libo Wu, Luo Yu, Fanghao Zhang, Brian McElhenny, Dan Luo, Alamgir Karim, Shuo Chen, Zhifeng Ren
Summary: The study successfully synthesized a heterogeneous Ni2P-Fe2P microsheet electrocatalyst with superior catalytic activity and corrosion resistance, suitable for water and seawater electrolysis, demonstrating great potential. The catalyst has abundant active sites and a superior transfer coefficient, exhibiting performance even better than the currently reported best bifunctional catalysts.
ADVANCED FUNCTIONAL MATERIALS
(2021)
Article
Materials Science, Ceramics
C. Trevino De Leo, G. C. Dannangoda, M. A. Hobosyan, J. T. Held, F. Safi Samghabadi, M. Khodadadi, D. Litvinov, K. A. Mkhoyan, K. S. Martirosyan
Summary: Carbon combustion synthesis is used to efficiently produce a multiferroic composite of cobalt ferrite and barium titanate, forming Janus-like particles matrix structure. The process involves exothermic oxidation of carbon nanoparticles, resulting in rapid propagation of a thermal wave that sinter the magneto-electric phases to form a nanocomposite structure. The activation energy for the combustion synthesis of Janus-like particles is estimated to be 112 +/- 3.3 kJ/mol, showing a decrease in activation energy barrier with the presence of barium titanate and cobalt ferrite.
CERAMICS INTERNATIONAL
(2021)
Article
Chemistry, Multidisciplinary
Alexander J. Wang, Eoghan P. Dillon, Surendra Maharjan, Kang-Shyang Liao, Brian P. McElhenny, Tian Tong, Shuo Chen, Jiming Bao, Seamus A. Curran
Summary: Nanocomposite materials are increasingly important in contemporary materials science, and analytical characterization and visualization of nanoscale interphases/interfaces are critical for development of novel multiphase nanostructures. A novel optical-photothermal infrared technique with simultaneous hyperspectral Raman spectroscopy can overcome diffraction limits of standard infrared spectroscopies, providing position-specific IR spectra with sub-micrometer resolution across the mid-IR range. This technique was used to resolve interfacial regions in a specific nanocomposite material and has potential for analytical characterization and visualization of other nanocomposite systems below the resolution limitations of conventional IR spectroscopies.
ADVANCED MATERIALS INTERFACES
(2021)
Article
Chemistry, Multidisciplinary
Shuyuan Huyan, Yanfeng Lyu, Hua Wang, Liangzi Deng, Zheng Wu, Bing Lv, Kui Zhao, Fei Tian, Guanhui Gao, Rui-Zhe Liu, Xiaojing Ma, Zhongjia Tang, Melissa Gooch, Shuo Chen, Zhifeng Ren, Xiaofeng Qian, Ching-Wu Chu
Summary: Research shows that interfacial superconductivity can be achieved in non-superconducting parent compounds through simple treatments, with superconductivity originating from electron transfer at the interface of hybrid heterostructures, providing insights for the exploration of interfacial superconductivity.
Article
Nanoscience & Nanotechnology
Farnaz Safi Samghabadi, Long Chang, Mohammad Khodadadi, Karen S. Martirosyan, Dmitri Litvinov
Summary: In this study, cobalt ferrite/barium titanate particulate composites with high magnetoelectric coefficients were synthesized using mechanical ball milling and high-temperature annealing. The use of 50 nm cubic BaTiO3 powder as a precursor resulted in a composite with a magnetoelectric coupling coefficient value as high as 4.3 mV/Oe cm. The Microstructure of these composites differs significantly from those synthesized using 200 nm tetragonal BaTiO3 powder, showing larger CoFe2O4 grains and better electrical insulation due to the surrounding BaTiO3 matrix.
Article
Chemistry, Physical
Libo Wu, Luo Yu, Qiancheng Zhu, Brian McElhenny, Fanghao Zhang, Chunzheng Wu, Xinxin Xing, Jiming Bao, Shuo Chen, Zhifeng Ren
Summary: A novel hierarchical nanosheet-nanoflake-structured B-Co2Fe LDH catalyst has been developed with excellent OER catalytic activity, stability, and corrosion resistance in seawater electrolysis, showing promising potential for selective seawater oxidation.
Article
Chemistry, Physical
Shaowei Song, Yaqin Wang, Ryan C. Davis, Zhensong Ren, Xin Xiao, Guang Yang, Dezhi Wang, Jiming Bao, Qinyong Zhang, Shuo Chen, Zhifeng Ren
Summary: By tuning the sodium concentration in NaxCoO2, the structure and physical properties can be manipulated to enhance catalytic activity, promoting the kinetic reactions of OER and ORR.
CHEMISTRY OF MATERIALS
(2021)
Article
Chemistry, Multidisciplinary
Zuan-Tao Lin, Jianhua Gu, Huie Wang, Albon Wu, Jingying Sun, Shuo Chen, Yaxi Li, Yifei Kong, Mei X. Wu, Tianfu Wu
Summary: This study reports a dual-function polymer scaffold for monitoring cell activity and drug screening in 3D cell culture. The system quantitatively monitors cell activity through conductance changes, providing a simple and direct method for evaluating drug effects.
Article
Materials Science, Multidisciplinary
M. Ning, L. Wu, F. Zhang, D. Wang, S. Song, T. Tong, J. Bao, S. Chen, L. Yu, Z. Ren
Summary: Electrochemical seawater splitting using a Fe2+-driven NiFe layered double hydroxide as a catalyst shows high activity and stability in alkaline seawater electrolyte. Coupling with a good hydrogen evolution reaction catalyst, the two-electrode electrolyzer exhibits excellent electrolysis performance in natural seawater. The oxidation of Fe2+ is a universal mechanism for the growth of efficient OER catalysts.
MATERIALS TODAY PHYSICS
(2021)
Article
Materials Science, Multidisciplinary
Q. Zhu, L. Yu, S. Song, D. Wang, D. Zhao, J. Zhou, Y. Yu, S. Chen, Z. Ren
Summary: Rechargeable aqueous Zn-based batteries are cost-effective, safe, and have high energy density, making them ideal for large-scale energy storage applications. By rapidly converting low-valence transition-metal ions to high-valence solid oxides, ultrafast charging of the cathodes in Zn batteries is achieved, leading to significant advancements in practical application.
MATERIALS TODAY PHYSICS
(2021)
Article
Chemistry, Physical
Libo Wu, Luo Yu, Brian McElhenny, Xinxin Xing, Dan Luo, Fanghao Zhang, Jiming Bao, Shuo Chen, Zhifeng Ren
Summary: The core-shell-structured CoPx@FeOOH catalyst designed for seawater electrolysis for hydrogen generation demonstrates excellent catalytic activity, high conductivity, large surface area, improved turnover frequency, optimal absorption energy to OER intermediates, enhanced chemical stability, and corrosion resistance. The CoPx||CoPx@FeOOH pair also shows great promise for fuel-gas production from seawater, with high Faradaic efficiency and low overpotentials required for certain current densities.
APPLIED CATALYSIS B-ENVIRONMENTAL
(2021)
Article
Chemistry, Multidisciplinary
Libo Wu, Fanghao Zhang, Shaowei Song, Minghui Ning, Qing Zhu, Jianqing Zhou, Guanhui Gao, Zhaoyang Chen, Qiancheng Zhou, Xinxin Xing, Tian Tong, Yan Yao, Jiming Bao, Luo Yu, Shuo Chen, Zhifeng Ren
Summary: This study demonstrates a heterogeneous Ni-MoN catalyst with outstanding performance for high-current-density water electrolysis. The catalyst, consisting of nanoparticles and nanorods, possesses abundant active sites and a hydrophilic surface that facilitates gas-release and prevents catalyst degradation. Theoretical calculations confirm the synergistic effect of Ni and MoN, as well as the improved water-dissociation kinetics at the Mo sites.
ADVANCED MATERIALS
(2022)
Article
Materials Science, Multidisciplinary
Fanghao Zhang, Yifei Liu, Libo Wu, Minghui Ning, Shaowei Song, Xin Xiao, Viktor G. Hadjiev, Donglei Emma Fan, Dezhi Wang, Luo Yu, Shuo Chen, Zhifeng Ren
Summary: Seawater electrolysis for hydrogen generation is important due to limited freshwater resources. The development of non-noble-metal-based electrocatalysts with high catalytic activity, long-term durability, and high OER selectivity is crucial. In this study, a three-dimensional core-shell dendritic catalyst has been developed, showing high activity and stability in alkaline seawater.
MATERIALS TODAY PHYSICS
(2022)
Article
Chemistry, Multidisciplinary
Minghui Ning, Fanghao Zhang, Libo Wu, Xinxin Xing, Dezhi Wang, Shaowei Song, Qiancheng Zhou, Luo Yu, Jiming Bao, Shuo Chen, Zhifeng Ren
Summary: Electrochemical reconstruction was used to synthesize bifunctional catalysts Fe-0.01-Ni&Ni0.2Mo0.8N and Fe-0.01&Mo-NiO with state-of-the-art HER and OER performance. The electrolyzer based on these catalysts exhibited record-high performance for seawater electrolysis and good durability under harsh industrial conditions.
ENERGY & ENVIRONMENTAL SCIENCE
(2022)
Review
Chemistry, Physical
Xiaofang Li, Zhou Li, Chen Chen, Zhifeng Ren, Cuiping Wang, Xingjun Liu, Qian Zhang, Shuo Chen
Summary: Phase diagrams have been used as a roadmap for materials research in various processes. CALPHAD provides theoretical guidance based on Gibbs energies, helping to design target materials and improve the consistency and accuracy of experiments. This study uses thermoelectric materials as an example to show how phase diagrams and thermodynamic information can be utilized in material design.
JOURNAL OF MATERIALS CHEMISTRY A
(2021)
Article
Chemistry, Multidisciplinary
Laetitia Bardet, Herve Roussel, Stefano Saroglia, Masoud Akbari, David Munoz-Rojas, Carmen Jimenez, Aurore Denneulin, Daniel Bellet
Summary: The thermal instability of silver nanowires leads to increased electrical resistance in AgNW networks. Understanding the relationship between structural and electrical properties of AgNW networks is crucial for their integration as transparent electrodes in flexible optoelectronics. In situ X-ray diffraction measurements were used to study the crystallographic evolution of Ag-specific Bragg peaks during thermal ramping, revealing differences in thermal and structural transitions between bare and SnO2-coated AgNW networks.
Article
Chemistry, Multidisciplinary
Nathalia Cancino-Fuentes, Arnau Manasanch, Joana Covelo, Alex Suarez-Perez, Enrique Fernandez, Stratis Matsoukis, Christoph Guger, Xavi Illa, Anton Guimera-Brunet, Maria V. Sanchez-Vives
Summary: This study provides a comprehensive characterization of graphene-based solution-gated field-effect transistors (gSGFETs) for brain recordings, highlighting their potential clinical applications.
Article
Chemistry, Multidisciplinary
Sikandar Aftab, Hailiang Liu, Dhanasekaran Vikraman, Sajjad Hussain, Jungwon Kang, Abdullah A. Al-Kahtani
Summary: This study examines the effects of hybrid nanoparticles made of NiO@rGO and NiO@CNT on the active layers of polymer solar cells and X-ray photodetectors. The findings show that these hybrid nanoparticles can enhance the charge carrier capacities and exciton dissociation properties of the active layers. Among the tested configurations, the NiO@CNT device demonstrates superior performance in converting sunlight into electricity, and achieves the best sensitivity for X-ray detection.
Article
Chemistry, Multidisciplinary
Hyo Jung Shin, Seung Gyu Choi, Fengrui Qu, Min-Hee Yi, Choong-Hyun Lee, Sang Ryong Kim, Hyeong-Geug Kim, Jaewon Beom, Yoonyoung Yi, Do Kyung Kim, Eun-Hye Joe, Hee-Jung Song, Yonghyun Kim, Dong Woon Kim
Summary: This study investigates the role of SOX9 in reactive astrocytes following ischemic brain damage using a PLGA nanoparticle plasmid delivery system. The results demonstrate that PLGA nanoparticles can reduce ischemia-induced neurological deficits and infarct volume, providing a potential opportunity for stroke treatment.
Article
Chemistry, Multidisciplinary
Anurag Chaudhury, Koushik Debnath, Nikhil R. Jana, Jaydeep K. Basu
Summary: The study investigates the interaction between nanoparticles and cell membranes, and identifies key parameters, including charge, crowding, and membrane fluidity, that determine the adsorbed concentration and unbinding transition of nanoparticles.
Article
Chemistry, Multidisciplinary
Sina Sadeghi, Fazel Bateni, Taekhoon Kim, Dae Yong Son, Jeffrey A. Bennett, Negin Orouji, Venkat S. Punati, Christine Stark, Teagan D. Cerra, Rami Awad, Fernando Delgado-Licona, Jinge Xu, Nikolai Mukhin, Hannah Dickerson, Kristofer G. Reyes, Milad Abolhasani
Summary: In this study, an autonomous approach for the development of lead-free metal halide perovskite nanocrystals is presented, which integrates a modular microfluidic platform with machine learning-assisted synthesis modeling. This approach enables rapid and optimized synthesis of copper-based lead-free nanocrystals.
Article
Chemistry, Multidisciplinary
Zahir Abbas, Nissar Hussain, Surender Kumar, Shaikh M. Mobin
Summary: The rational construction of free-standing and flexible electrodes for electrochemical energy storage devices is an emerging research focus. In this study, a redox-active metal-organic framework (MOF) was prepared on carbon nanofibers using an in situ approach, resulting in a flexible electrode with high redox-active behavior and unique properties such as high flexibility and lightweight. The prepared electrode showed excellent cyclic retention and rate capability in supercapacitor applications. Additionally, it could be used as a freestanding electrode in flexible devices at different bending angles.
Article
Chemistry, Multidisciplinary
Lishan Zhang, Xiaoting Zhang, Hui Ran, Ze Chen, Yicheng Ye, Jiamiao Jiang, Ziwei Hu, Miral Azechi, Fei Peng, Hao Tian, Zhili Xu, Yingfeng Tu
Summary: Photodynamic therapy (PDT) is a promising local treatment modality in cancer therapy, but its therapeutic efficacy is restricted by ineffective delivery of photosensitizers and tumor hypoxia. In this study, a phototactic Chlorella-based near-infrared (NIR) driven green affording-oxygen microrobot system was developed for enhanced PDT. The system exhibited desirable phototaxis and continuous oxygen generation, leading to the inhibition of tumor growth in mice. This study demonstrates the potential of using a light-driven green affording-oxygen microrobot to enhance photodynamic therapy.
Article
Chemistry, Multidisciplinary
Yujin Li, Jing Xu, Xinqi Luo, Futing Wang, Zhong Dong, Ke-Jing Huang, Chengjie Hu, Mengyi Hou, Ren Cai
Summary: In this study, hollow heterostructured materials were constructed using an innovative template-engaged method as cathodes for zinc-ion batteries. The materials exhibited fast Zn2+ transport channels, improved electrical conductivity, and controlled volume expansion during cycling. The designed structure allowed for an admirable reversible capacity and high coulombic efficiency.
Article
Chemistry, Multidisciplinary
Paritosh Mahato, Shashi Shekhar, Rahul Yadav, Saptarshi Mukherjee
Summary: This study comprehensively elucidates the role of the core and electrostatic surface of metal nanoclusters in catalytic reduction reactions. The electrostatic surface dramatically modulates the reactivity of metal nanoclusters.
Article
Chemistry, Multidisciplinary
Pei Liu, Mengdi Liang, Zhengwei Liu, Haiyu Long, Han Cheng, Jiahe Su, Zhongbiao Tan, Xuewen He, Min Sun, Xiangqian Li, Shuai He
Summary: This study demonstrates a simple and environmentally-friendly method for the synthesis of zinc oxide nanozymes (ZnO NZs) using wasted hop extract (WHE). The WHE-ZnO NZs exhibit exceptional peroxidase-like activity and serve as effective catalysts for the oxidation of 3,3,5,5-tetramethylbenzidine (TMB) in the presence of hydrogen peroxide (H2O2). In addition, a straightforward colorimetric technique for detecting both H2O2 and glucose was developed using the WHE-ZnO NZs as peroxidase-like catalysts.
Article
Chemistry, Multidisciplinary
Hyunkyu Oh, Young Jun Lee, Eun Ji Kim, Jinseok Park, Hee-Eun Kim, Hyunsoo Lee, Hyunjoo Lee, Bumjoon J. Kim
Summary: Mesoporous carbon particles have unique structural properties that make them suitable as support materials for catalytic applications. This study investigates the impact of channel nanostructures on the catalytic activity of porous carbon particles (PCPs) by fabricating PCPs with controlled channel exposure on the carbon surface. The results show that PCPs with highly open channel nanostructures exhibit significantly higher catalytic activity compared to those with closed channel nanostructures.
Article
Chemistry, Multidisciplinary
Yunjie Lu, Zhaohui Li, Zewei Li, Shihao Zhou, Ning Zhang, Jianming Zhang, Lu Zong
Summary: A tough, long-lasting adhesive and highly conductive nanocomposite hydrogel (PACPH) was fabricated via the synergy of interfacial entanglement and adhesion group densification. PACPH possesses excellent mechanical properties, interfacial adhesion strength, and conductivity, making it a promising material for long-term monitoring of human activities and electrocardiogram signals.
Article
Chemistry, Multidisciplinary
Zichao Wei, Audrey Vandergriff, Chung-Hao Liu, Maham Liaqat, Mu-Ping Nieh, Yu Lei, Jie He
Summary: We have developed a simple method to prepare polymer-grafted plasmonic metal nanoparticles with pH-responsive surface-enhanced Raman scattering. By using pH-responsive polymers as ligands, the aggregation of nanoparticles can be controlled, leading to enhanced SERS. The pH-responsive polymer-grafted nanoparticles show high reproducibility and sensitivity in solution, providing a novel approach for SERS without the need for sample pre-concentration.
Article
Chemistry, Multidisciplinary
Melis Ozge Alas Colak, Ahmet Gungor, Merve Buldu Akturk, Emre Erdem, Rukan Genc
Summary: This research investigates the effect of functionalizing carbon dots with hydroxyl polymers on their performance as electrode materials in a supercapacitor. The results show that the functionalized carbon dots exhibit excellent electrochemical performance and improved stability.