Article
Materials Science, Multidisciplinary
Kyung Ho Kim, Yuya Ishita, Yoshio Abe
Summary: Porous nanosheet-structured nickel oxide (NiO) films were directly prepared on conductive oxide substrates using a one-pot solution method. Cobalt (Co) and zinc (Zn) dopants were found to modify the electrochromic properties of the NiO films, with the Co-NiO film showing improved transmittance modulation and memory durability compared to the NiO and Zn-NiO films.
Article
Materials Science, Multidisciplinary
Shuo Qian, Enhui Bao, Huiyu Chen
Summary: ZnO microflowers consisting of porous nanosheets were synthesized by hydrothermal reaction and subsequent annealing at 300 degrees C. Characterization through XRD, SEM, TEM, and N-2 adsorption-desorption test revealed that the ZnO microflowers had a size of about 6 mu m, a surface area of 58.6 m(2)/g, an average pore size of 14.1 nm, and a size distribution centered at 15.1 nm. The hydrothermal temperature played a crucial role in determining the shape and size of the ZnO products. These ZnO microflowers with porous structure and large surface area show potential applications in gas sensors, photo-catalysis, electrochemical energy storage, and more. The synthetic method presented here is simple, cost-effective, and can be extended to the preparation of other metal oxides with controlled structures.
Article
Chemistry, Multidisciplinary
Jiamin Tian, Mei Sun, Mengyu Hong, Bocheng Yu, Menglan Li, Yu Geng, Shuo Li, Yue Zhang, Zhihong Li, Qing Chen
Summary: The wet chemical etching process of zinc oxide (ZnO) nanowires in radiolytic water was studied using liquid cell transmission electron microscopy (LCTEM). It was found that the dissolution rate of thin nanowires remains constant with reducing diameter, while thick nanowires exhibit complex etching behaviors. The dissolution rate of thick nanowires is constant at first and then increases, and anisotropic etching occurs at both ends of thick nanowires leading to the formation of distinct tips. The polarity difference at the two ends of the nanowire and the arrangement of sidewall cones determine the shape and formation process of the tips.
Article
Chemistry, Physical
Lei Mao, Xun Zhao, Yang Li, Lingyun Chen
Summary: Transition metal carbonate hydroxides are promising candidates for electrode materials in supercapattery. Tailoring the chemical compositions and nanostructures can lead to high-performance electrode materials that meet the demand for electrical energy storage devices.
JOURNAL OF COLLOID AND INTERFACE SCIENCE
(2022)
Article
Engineering, Electrical & Electronic
Anderson Luis do Valle, Anielle Christine Almeida Silva, Francielli C. C. Melo, Guilherme de L. Fernandes, Guedmiller Souza de Oliveira, Noelio Oliveira Dantas, Luciano Pereira Rodrigues, Luiz Ricardo Goulart Filho
Summary: This study investigated the interaction between the herbicide glyphosate and zinc oxide nanocrystals under controlled pH conditions. Changes in pH were found to affect the conformational changes of glyphosate and the crystal structures of the nanocrystals. Adjusting pH levels can improve the accuracy of glyphosate quantification and change the identification method.
IEEE SENSORS JOURNAL
(2021)
Article
Materials Science, Multidisciplinary
Yang Li, Ziyang Luo, Shunfei Liang, Huizhen Qin, Xun Zhao, Lingyun Chen, Huayu Wang, Shaowei Chen
Summary: The study presents the synthesis of unique two-dimensional porous nanosheet arrays of ZnxCo1-xS via a facile hydrothermal process, with the Zn0.5Co0.5S electrode showing the best performance among the series. This electrode exhibits high specific capacity and excellent cycle retention rate, demonstrating significant potential for the development of high-performance supercapattery devices.
JOURNAL OF MATERIALS SCIENCE & TECHNOLOGY
(2021)
Article
Chemistry, Multidisciplinary
Hyun Wook Go, Thanh Tuan Nguyen, Quynh Phuong Ngo, Rongrong Chu, Nam Hoon Kim, Joong Hee Lee
Summary: This work proposes a novel method to design a heterogeneous CoP/CoO electrocatalyst on mesopore nanobox carbon/carbon nanotube (CoP/CoO@MNC-CNT) that enriched active sites and synergistic effect. The well-defined heterointerfaces could lower the energy barrier for intermediate species adsorption and promote OER and ORR electrochemical performances. The ZABs-based CoP/CoO@MNC-CNT air-cathode shows high performance in terms of ORR half-wave potential and OER overpotential, and the flexible ZABs exhibit highly mechanical stability, demonstrating their application potential in wearable electronic devices.
Article
Engineering, Environmental
Jin-Sung Park, Sung Eun Wang, Dae Soo Jung, Jung-Kul Lee, Yun Chan Kang
Summary: This study introduces the synthesis of uniquely structured porous VN-rGO microspheres and their application as cathodes for ZIBs. The VN-rGO microspheres exhibit high capacity, high energy density, and good rate capability. The electro-chemical reaction mechanism of VN-rGO microspheres with zinc ions is investigated.
CHEMICAL ENGINEERING JOURNAL
(2022)
Article
Chemistry, Physical
Shuang Li, Zulipiya Shadike, Gihan Kwon, Xiao-Qing Yang, Ji Hoon Lee, Sooyeon Hwang
Summary: This study investigates the structural changes of metal oxides during both conversion and reconversion processes in lithium-ion batteries using synchrotron X-ray techniques and transmission electron microscopy. It was found that the difference in diffusion rates of lithium and metal ions plays a critical role in determining the reaction pathway, and incomplete reconversion reaction limits the utilization of lithium ions over repeated cycling.
CHEMISTRY OF MATERIALS
(2021)
Article
Nanoscience & Nanotechnology
Joelle Medinger, Kyung Seob Song, Pacifique Umubyeyi, Ali Coskun, Marco Lattuada
Summary: In this study, anisotropic structure of porous carbons was achieved by integrating superparamagnetic colloids and applying a uniform magnetic field during the sol-gel transition. The resulting hierarchically porous carbon monoliths showed higher porosity, higher CO2 uptake capacity, and faster adsorption kinetics compared to those synthesized without a magnetic field. Additionally, these materials were found to be effective magnetic sorbents for oil-spill cleanup.
ACS APPLIED MATERIALS & INTERFACES
(2023)
Article
Chemistry, Multidisciplinary
Aswathi K. Sivan, Alejandro Galan-Gonzalez, Lorenzo Di Mario, Nicolas Tappy, Javier Hernandez-Ferrer, Daniele Catone, Stefano Turchini, Ana M. Benito, Wolfgang K. Maser, Simon Escobar Steinvall, Anna Fontcuberta i Morral, Andrew Gallant, Dagou A. Zeze, Del Atkinson, Faustino Martelli
Summary: The controlled modification of the electronic properties of ZnO nanorods through transition metal doping has been demonstrated. This doping extends light absorption into the visible region, increases surface defects, shortens non-radiative lifetimes, and enhances the IPCE of the nanorods.
NANOSCALE ADVANCES
(2021)
Article
Chemistry, Multidisciplinary
Subbukalai Vijayakumar, Ganesh Dhakal, Soo-Hyun Kim, Jintae Lee, Yong Rok Lee, Jae-Jin Shim
Summary: In this study, Zn-Co-S nanostrip cluster arrays were successfully synthesized on Ni foam through a two-step hydrothermal process. These arrays exhibited higher specific capacity and electrochemical performance compared to ZnCo2O4, showcasing their potential for hybrid supercapacitor applications.
Article
Materials Science, Ceramics
Youssef El Jabbar, Hind Lakhlifi, Rachida El Ouatib, Lahcen Er-Rakho, Sophie Guillemet-Fritsch, Yann Borjon-Piron, Bernard Durand
Summary: This study utilized a sol-gel method to prepare spinel-type Cobalt-substituted zinc aluminate nanoparticles and investigated the effect of calcination temperature on crystallinity and optical properties. The results showed the formation of nano-sized single-phase spinel structure at 700 degrees C, while annealing at 800 degrees C with 50% cobalt enrichment resulted in blue powders with approximately 92% crystallinity and nanometric size morphology.
CERAMICS INTERNATIONAL
(2021)
Article
Chemistry, Analytical
Juan Lu, Yue Wang, Xiangyu Shan, Zhuo Sun, Xin Zhang, Yingjie Zhao, Yue Hu, Erjun Sun, Li Tian
Summary: An electrochemiluminescence sensor was developed by modifying a glassy carbon electrode with multiwall carbon nanotubes, cobalt oxide doped silver oxide, and porphyrin zinc to detect glucose in biological systems. The sensor demonstrated good sensitivity, selectivity, stability, and reproducibility.
MICROCHEMICAL JOURNAL
(2021)
Article
Engineering, Environmental
Ju Hyeong Kim, Min Kim, Jeong Hoo Hong, Yun Chan Kang
Summary: A bifunctional oxygen electrocatalyst for Zn-air batteries was synthesized by forming a unique structured composite of cobalt hydroxy selenide (Co(OH)Se) and nitrogen-doped carbon (C) using a novel water vapor-assisted heat-treatment and an anion-exchange technique. The composite exhibited excellent electrocatalytic activities for both the oxygen reduction reaction (ORR) and oxygen evolution reaction (OER), resulting in improved cycle stability and rate capability of the ZAB. This study expands the range of electrocatalyst design and synthesis by demonstrating the potential use of multi-anionic Co(OH)Se and presenting a technique for complexing transition metal compounds and carbon matrices.
CHEMICAL ENGINEERING JOURNAL
(2023)
Article
Chemistry, Physical
Fan Yang, Ji Feng, Jinxing Chen, Zuyang Ye, Jihua Chen, Dale K. Hensley, Yadong Yin
Summary: Controlled growth of islands on plasmonic metal nanoparticles is achieved through an effective surface-engineering strategy, allowing for the creation of unique morphologies that are difficult to achieve by conventional synthesis methods. This work demonstrates the selective control of island growth on Au nanostructures and the fine-tuning of nanoparticles' optical properties.
Article
Chemistry, Multidisciplinary
Fenglian Qi, Lin Li, Zhiwei Li, Lili Qiu, Zihui Meng, Yadong Yin
Summary: Researchers have developed stretchable chiroptical films with mechanically tunable extrinsic chirality by assembling hexagonal magnetic/plasmonic hybrid nanodisks in magnetic fields.
Article
Engineering, Environmental
Jinyu Gao, Qiang Zhao, Cheng Tan, Shaohua Xie, Yadong Yin, Fudong Liu, Haizhou Liu, Baoliang Chen, Jinyong Liu
Summary: Adding CrIII or AlIII salts to PGM catalysts in water suspension can greatly accelerate the reduction of oxyanion pollutants. The addition of K2CrVIO4, K2CrVI2O7, or KCrIII(SO4)2 to Pd/C enhances the reduction of BrO3- by 6-fold. The immobilization of reduced CrVIas CrIII(OH)3 on the catalyst surface increases the adsorption equilibrium constant for BrO3- onto Pd/C by 37-fold.
ENVIRONMENTAL SCIENCE & TECHNOLOGY
(2023)
Article
Chemistry, Physical
Yang Yang, Qianqian Wang, Xueyong Zhang, Xianhe Deng, Yina Guan, Maoquan Wu, Li Liu, Jie Wu, Tongjie Yao, Yadong Yin
Summary: This study reports the transformation of type-II Fe2O3@2H-MoS2 heterostructures into a Z-scheme Fe2O3@C@1T/2H-MoS2 catalyst capable of in situ photocatalytic generation of H2O2 as an oxidant for the subsequent Fenton reaction. The cascade process demonstrates high performance in the oxidative degradation of organics, with significant effectiveness in the degradation of tetracycline. The in situ generated H2O2 accounts for a considerable portion of the total degradation efficiency, providing an effective solution to the challenges in the traditional Fenton reaction.
JOURNAL OF MATERIALS CHEMISTRY A
(2023)
Article
Chemistry, Multidisciplinary
Chao Huang, Yuanyuan Shang, Jiachuan Hua, Yadong Yin, Xuemin Du
Summary: Researchers have developed a new kind of self-destructive structural color liquid that indicates the time-temperature history of vaccines in cold chain transport. These liquids exhibit irreversibility, high sensitivity, tunable self-destructive time, and a wide temperature tracking range, making them suitable for monitoring vaccine storage and exposure status.
Article
Chemistry, Multidisciplinary
Yun Liu, Wei Luo, Qingsong Fan, Huiru Ma, Yadong Yin, Yi Long, Jianguo Guan
Summary: A polyphenol-mediated strategy was used to synthesize size-controllable superparamagnetic magnetite (Fe3O4) colloid nanocrystal clusters (CNCs) that can be stably dispersed in various polar solvents to form magnetically responsive photonic crystals (MRPCs) with brilliant structural colors for a long term.
ADVANCED FUNCTIONAL MATERIALS
(2023)
Article
Chemistry, Multidisciplinary
Chaolumen Wu, Qingsong Fan, Wanling Wu, Tian Liang, Yun Liu, Huakang Yu, Yadong Yin
Summary: Integrating plasmonic resonance into photonic bandgap nanostructures allows for additional control over their optical properties. One-dimensional plasmonic photonic crystals with angular dependent structural colors are fabricated by assembling magnetoplasmonic colloidal nanoparticles under a magnetic field. The assembled structures exhibit angular dependent colors based on the activation of optical diffraction and plasmonic scattering.
Article
Materials Science, Multidisciplinary
Qingsong Fan, Yu Lu, Shiyou Xu, Guofeng Xu, Zepeng Cai, Ji Feng, Chaolumen Wu, Tatiana V. Brinzari, Long Pan, Yadong Yin
Summary: This study reports a green, cost-effective, and scalable method for synthesizing colloidal hybrid nanospheres capable of releasing zinc ions in a highly controllable manner. The release rate of zinc ions can be conveniently tuned by changing the shell thickness and cross-linking degree of the silica layer, solvent composition, and surrounding temperature. A novel film capable of recording time-sensitive color information is designed using direct laser writing and further demonstrated its application in steganography by integrating the temperature-sensitive release behavior, color shift associated with the complexation of zinc ions, and photothermal conversion property of gold nanoparticles.
ADVANCED MATERIALS TECHNOLOGIES
(2023)
Article
Chemistry, Multidisciplinary
Zuyang Ye, Zhiwei Li, Ji Feng, Chaolumen Wu, Qingsong Fan, Chen Chen, Jinxing Chen, Yadong Yin
Summary: Incorporating stimuli-responsive mechanisms into chiral assemblies of nanostructures allows for dynamic modulation of their optical properties. In this study, chiral superstructures were formed by assembling Fe3O4@polyaniline hybrid nanorods using a gradient magnetic field. These superstructures exhibited dual responses to changes in magnetic field and solution pH, allowing for dynamic regulation of their circular dichroism peaks. This responsiveness enabled convenient control over the optical rotatory dispersion properties and was utilized in the design of a chiroptical switch that displayed various colors and patterns when illuminated with different wavelengths and polarization states of light. Furthermore, an optical information encryption system was constructed, demonstrating the practical applications made possible by these responsive chiral superstructures.
Article
Chemistry, Multidisciplinary
Yu Liu, Congyang Zhang, Ji Feng, Xuchun Wang, Zhifeng Ding, Le He, Qiao Zhang, Jinxing Chen, Yadong Yin
Summary: Incorporating high-energy UV photons into photothermal catalytic processes enables photothermal-photochemical synergistic catalysis, a transformative technology for waste plastic recycling. The challenge lies in avoiding side reactions and by-products caused by these photons. In this study, we propose a photochromic-photothermal catalytic system based on polyol-ligated TiO2 nanocrystals, which achieves significant performance enhancements under both thermal and photothermal conditions with high selectivity to high-valued monomers.
ANGEWANDTE CHEMIE-INTERNATIONAL EDITION
(2023)
Article
Chemistry, Physical
Zhongxiang Wang, Youyi Tai, Jin Nam, Yadong Yin
Summary: This study investigates the evolution of size, morphology, phase, and surface properties of Mn2+-doped ZnS nanorods during calcination. It reveals a complex dependence of phase and ML performance on various factors. The phase composition has a significant impact on ML intensity, while photoluminescence is affected by optical absorption from carbon species generated by surface ligands.
CHEMISTRY OF MATERIALS
(2023)
Article
Multidisciplinary Sciences
Zhiwei Li, Qingsong Fan, Zuyang Ye, Chaolumen Wu, Zhongxiang Wang, Yadong Yin
Summary: Colloidal assembly into chiral superstructures can be achieved rapidly and with materials of any chemical compositions and sizes using magnetic assembly techniques. The chiral superstructures are controlled by the strength of the magnetic field and the orientation of the magnets. Moreover, the chirality can be transferred to achiral molecules by incorporating guest molecules into the magnetic nanostructures.
Article
Chemistry, Multidisciplinary
Zuyang Ye, Sangmo Liu, Yadong Yin
Summary: Regenerative medicine has the potential to revolutionize healthcare by providing transplant options for patients suffering from tissue disease or organ failure. Cryopreservation offers a promising solution for long-term tissue and organ storage, but the challenge of rewarming cryopreserved biological samples without damaging them remains. Nanowarming using magnetic nanoparticles shows promise for addressing this challenge, but improvements in their design are necessary to balance heating efficiency and biocompatibility.
MATERIALS CHEMISTRY FRONTIERS
(2023)
Article
Chemistry, Multidisciplinary
Chaolumen Wu, Qingsong Fan, Zhiwei Li, Zuyang Ye, Yadong Yin
Summary: This study demonstrates reversible assembly and active tuning of plasmonic chiral superstructures by introducing a chiral magnetic field. Manipulating the magnetic field controls both the chiral arrangement and spectral properties of the superstructures, enabling fast and reversible tunability.
MATERIALS HORIZONS
(2023)
Article
Chemistry, Multidisciplinary
Jinxing Chen, Michael Lee, Yinghua Qiu, Chaolumen Wu, Bo Li, Yadong Yin
Summary: This study proposes the synthesis of 3D hierarchically porous evaporators using high internal phase emulsion (HIPE) templating. It enables convenient fabrication, excellent shape control, and potential scalability, with the potential to increase the evaporation efficiency.
