Article
Chemistry, Inorganic & Nuclear
Pei Li, Renhui Jiang, Ligong Zhao, Huayu Peng, Peili Zhao, Shuangfeng Jia, He Zheng, Jianbo Wang
Summary: Using in situ transmission electron microscopy, phase instability in potassium tungsten bronze induced by heating was investigated, revealing multiple phase transition pathways and the critical role of cationic defects in mediating crystal structures, providing design reference for high-temperature applications.
INORGANIC CHEMISTRY
(2021)
Article
Chemistry, Analytical
Yuting Ye, Chao Chen, Wentao Li, Xingzhou Guo, Haifeng Yang, Haomin Guan, Hua Bai, Wei Liu, Guangcheng Xi
Summary: A rapid and green microwave synthetic route was developed for the preparation of plasmonic W18O49 mesocrystals with no additives. The ultrathin nanowires and oxygen vacancy-rich building units, along with the periodic mesocrystal structure, significantly enhanced the SERS properties, achieving outstanding enhancement factor and ultralow detectable limit. The large-area SERS substrate fabricated showed a low relative standard deviation, indicating good reproducibility.
ANALYTICAL CHEMISTRY
(2021)
Article
Chemistry, Inorganic & Nuclear
Kenneth P. Marshall, Sigurd O. Eidem, Didrik R. Smabraten, Sverre M. Selbach, Tor Grande, Mari-Ann Einarsrud
Summary: The hydrothermal synthesis of hexagonal YMnO3 and YbMnO3 was reported using high KOH mineraliser concentrations and low temperatures. The relationship between reaction parameters and resulting phase purity was investigated through X-ray diffraction. Excess Y2O3 resulted in a two-phase product with unique hexagonal particle shape, and an Ostwald ripening mechanism was proposed to explain the observed microstructure. Solid-state reactions and density functional theory calculations were used to determine plausible defect chemistry leading to different lattice parameters in the phases.
DALTON TRANSACTIONS
(2021)
Article
Chemistry, Physical
Shipra Choudhary, Kavita Sahu, Aditi Bisht, Biswarup Satpati, Satyabrata Mohapatra
Summary: ZnO nanowires and nanoplates with enhanced photocatalytic performance were successfully prepared via one-step thermal decomposition of zinc acetate dihydrate. The increase in thermal decomposition temperature led to the formation of ZnO nanoparticles and nanorods. The ZnO nanostructures exhibited a decrease in band gap and quenching of defect emissions with the increase in thermal decomposition temperature, resulting in significantly improved photocatalytic activity.
APPLIED SURFACE SCIENCE
(2021)
Article
Chemistry, Inorganic & Nuclear
Elena Del Canale, Lorenzo Fornari, Chiara Coppi, Giulia Spaggiari, Francesco Mezzadri, Giovanna Trevisi, Patrizia Ferro, Edmondo Gilioli, Massimo Mazzer, Davide Delmonte
Summary: We have developed a new method to synthesize bulk indium nitride and bulk gallium nitride using a solid-state chemical reaction under high-pressure/high-temperature conditions. The reactions involve binary oxides and highly reactive nitrogen sources without the use of gases or solvents. The obtained materials are pure and can be produced in significant quantities for electronic and energy technologies.
INORGANIC CHEMISTRY
(2023)
Review
Chemistry, Physical
Ali Saad, Subharanjan Biswas, Effrosyni Gkaniatsou, Clemence Sicard, Eddy Dumas, Nicolas Menguy, Nathalie Steunou
Summary: MOFs have shown great potential in various applications due to their high and tunable porosity as well as chemical diversity. However, research on certain forms of MOF nanocrystals is limited. Controlling the crystal size, morphology, and porosity is a major challenge for practical applications, but different synthetic strategies offer potential solutions to this issue.
CHEMISTRY OF MATERIALS
(2021)
Article
Materials Science, Ceramics
Daiane Fernandes, Cristiane W. Raubach, Pedro L. G. Jardim, Mario L. Moreira, Sergio S. Cava
Summary: A method of obtaining sodium niobate nanowires in a shorter time using microwave-assisted hydrothermal method followed by calcination was proposed. The obtained Perovskite showed improved crystallinity and band gap after heat treatment, resulting in enhanced photocatalytic performance with a high degradation rate of RhB reaching around 99.21%.
CERAMICS INTERNATIONAL
(2021)
Article
Physics, Applied
Chih-Wei Hsu, Petro Deminskyi, Anton Persson, Matts Karlsson, Henrik Pedersen
Summary: A time-resolved precursor supply is beneficial for deposition of smooth and continuous nanometer-thin InN films; Purging the reactor between precursor pulses and reducing deposition temperature are key factors for achieving homogeneous InN; 320 degrees C is found to be the upper temperature where the dynamics of the deposition chemistry can be controlled to involve only surface reactions with surface species.
JOURNAL OF APPLIED PHYSICS
(2021)
Article
Chemistry, Multidisciplinary
Jae Geun Yun, Han Min Lee, Gwang Yeol Baik, Ji Yeop Kim, Sang Ji Lee, Min Kyu Jeon, Sang In Keel, Jung Goo Hong
Summary: The study shows that lower O-2 concentrations in a high-temperature thermal reactor facilitate the conversion of N2O to N-2 or NO, while increasing O-2 concentration hinders the conversion process. By introducing a modified parameter, the experimental results align closely with the calculated results.
Article
Chemistry, Inorganic & Nuclear
Robert L. Sacci, Rebecca D. McAuliffe, Thomas F. Malkowski, Nathan Kidder, X. Chelsea Chen, Ashfia Huq, Melanie Kirkham, Beth L. Armstrong, Luke L. Daemen, Gabriel M. Veith
Summary: This work presents a new method to quickly incorporate lithium and stabilize the ionic conducting garnet phase by decoupling the formation of a La-Zr-O network from the addition of lithium. By synthesizing La2Zr2O7 nanoparticles to which LiNO3 was added, the method produces a porous high-Li-ion-conducting cubic phase within an hour, which can be used as a starting structure for a composite electrolyte.
INORGANIC CHEMISTRY
(2021)
Article
Materials Science, Ceramics
Yongxia Li, Binsheng Yang, Bin Liu
Summary: Efficient visible-light-driven photocatalysts face challenges due to high charge recombination rates. The development of BiVO4 nanoparticles with controllable oxygen vacancy levels has shown a significant increase in photocatalytic efficiency, with the optimal oxygen vacancy level leading to a 38% improvement over pure BiVO4. Characterizations revealed that this increase was mainly due to the suppression of electron/hole recombination.
CERAMICS INTERNATIONAL
(2021)
Article
Materials Science, Multidisciplinary
Feitao Li, Dong Wang, Malte Klingenhof, Dominik Flock, Honglei Wang, Peter Strasser, Peter Schaaf
Summary: This study investigates the morphology evolution of gold thin films on silicon substrates induced by thermal annealing and the effects of annealing temperature and atmosphere. The degree of dewetting and interdiffusion between gold and silicon increase with the annealing temperature. The interdiffusion is observed at temperatures above 800 degrees C, resulting in the formation of Au-Si droplets. The atmosphere during annealing influences the oxidation reactions and the formation of silicon oxide layers.
JOURNAL OF MATERIALS SCIENCE
(2022)
Article
Chemistry, Multidisciplinary
Shijia Li, Chuqian Xiao, Rongzhen Chen, Mengyi Wang, Yuting Ma, Kaiwen Luo, Muyao Shen, Yihua Zhu, Yuhang Li, Chunzhong Li
Summary: In this study, Cu-dispersed oxide octahedral molecular sieve (Cu(x)-OMS-1) was used as a catalyst for electrochemical nitrate reduction reaction (NITRR). The introduction of copper optimized the adsorption capabilities of the intermediates in NITRR and inhibited competitive hydrogen evolution reaction (HER) at high current density. The study revealed that copper effectively promoted nitrate protonation during NITRR, resulting in a high current density and Faraday efficiency for nitrate reduction to ammonia.
Article
Chemistry, Multidisciplinary
Dong Zhang
Summary: CeO2-ZrO2-M2O3 mixed oxide was synthesized using a solvothermal method. The physico-chemical properties were characterized and the catalytic activity for soot oxidation was evaluated. The doping of La3+, Y3+ and Bi3+ was found to lower the oxidation temperature of the soot, and nanosized mixed oxide particles were observed. Dopants such as Y3+ or La3+ promoted active oxygen formation, while Bi3+ enhanced the low-temperature reduction of both Bi2O3 and ceria.
Article
Materials Science, Ceramics
Xiaochuan Chong, Guoqing Xiao, Donghai Ding, Jiyuan Luo, Xin Zheng
Summary: The SiC/Al2O3 composite powders with SiC nanowires were successfully synthesized using a one-step combustion synthesis method, with ferrocene as the catalyst. The study investigated the effects of ferrocene on the combustion process and product characteristics, finding that optimal catalyst content led to high combustion temperature, minimal residual silicon, and high nanowire content and aspect ratio. Additionally, two growth mechanism models for SiC nanowires, VS and VLS, were validated in the study.
CERAMICS INTERNATIONAL
(2022)
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.