Article
Chemistry, Multidisciplinary
Tiantian Dai, Zanhong Deng, Shimao Wang, Xiaodong Fang, Gang Meng
Summary: This study investigates the growth temperature of W18O49 nanowires and finds that reducing the temperature is important for the application of W18O49 nanowires in flexible or wearable electronics.
Article
Chemistry, Multidisciplinary
Jin-Long Wang, Jian-Wei Liu, Si-Zhe Sheng, Zhen He, Jie Gao, Shu-Hong Yu
Summary: By coassembling W18O49 and V2O5 nanowires, a novel multicolor electrochromic device is demonstrated, which shows dynamic color change upon application of different electrochemical biases. The transparency and color of the device can be easily controlled by manipulating the layers and ratios of coassembled nanowires, allowing for the fabrication of different patterns with corresponding masks. This solid electrochromic device assembled from nanowires has significant potentials in smart windows and multicolor electrochromic displays.
Article
Chemistry, Multidisciplinary
Navpreet Kaur, Dario Zappa, Valentin-Adrian Maraloiu, Elisabetta Comini
Summary: Establishing a platform with different nanostructured oxides is a novel idea for developing highly sensitive and selective sensing devices. The study successfully created 3D-heterostructures consisting of 1D nanowires of NiO and WO3, exhibiting selective behavior towards different gases. The improved sensing performance of the heterostructures is attributed to charge carrier transport through specific interfaces and modulation of charge carriers in the electron depletion layer of WO3 and hole accumulation layer of NiO and NiWO4.
ADVANCED FUNCTIONAL MATERIALS
(2021)
Article
Chemistry, Physical
Madeshwari Ezhilan, Arockia J. B. B. Jayalatha, K. Jayanth Babu, John Bosco Balaguru Rayappan
Summary: Low-dimensional metal oxide nanostructures with hierarchical connections have been preferred for gas-sensing applications due to their enhanced sensing response. Hierarchical architectures of WO3 nanowires were synthesized using electrospinning technique, with X-ray diffraction and electron microscopy revealing changes in grain features with calcination temperature. X-ray photoelectron spectrometer showed higher oxidation states of tungsten and increased oxygen vacancies in samples calcined at higher temperatures.
JOURNAL OF ALLOYS AND COMPOUNDS
(2021)
Article
Chemistry, Physical
Dong-Bum Seo, Viet Dongquoc, Roshani Awanthika Jayarathna, Sangyeob Lee, Jae-Hyun Lee, Eui-Tae Kim
Summary: This study reports the controllable growth of vertically aligned 2D MoS2 nanosheets on 1D WO3 nanorods, forming beneficial heterojunctions for enhanced photoelectrochemical water-splitting reactivity. The results show that vertically aligned MoS2 nanosheets decorated on WO3 nanorods can significantly improve the PEC performance, especially when the size of MoS2 nanosheets is appropriate.
JOURNAL OF ALLOYS AND COMPOUNDS
(2022)
Article
Chemistry, Multidisciplinary
Yi Li, Wenting Chen, Zhiwei Liu, Dehua Cao, Yu Chen, Kunyapat Thummavichai, Nannan Wang, Yanqiu Zhu
Summary: This study successfully modified a novel cow dung based activated carbon (CDAC) with W18O49 nanowires as a photocatalyst. The CDAC/W18O49 nanowire composite showed significant improvement in the photocatalytic degradation of methylene blue (MB) under full-spectrum light illumination, indicating its potential application in dye wastewater treatment technologies.
Article
Chemistry, Multidisciplinary
Tiantian Dai, Zanhong Deng, Meng Li, Shimao Wang, Mengxiao Chen, Gang Meng
Summary: Metal oxide semiconductor (MOS)-based chemiresistors have been widely used for detecting harmful gases due to their small size, low cost, integratability, and ease of use. Power consumption is a critical parameter, and self-heating working mode has attracted significant attention for reducing power consumption.
Article
Chemistry, Physical
Yanshan Mo, Shouquan Feng, Tianqi Yu, Jinli Chen, Guangfu Qian, Lin Luo, Shibin Yin
Summary: PtNi alloy nanoparticles show promising catalytic activity for the oxygen reduction reaction (ORR), but their stability is greatly affected by the Ostwald ripening of particles and the dissolution/migration of surface atoms. This study reports WOx-surface modified PtNi alloy nanowires with enhanced ORR catalytic property, showing a volcano relationship between ORR activity and WOx content, and high stability after durability testing. The synergistic effect of WOx on Pt effectively regulates the ORR activity of PtNi alloy NWs.
JOURNAL OF COLLOID AND INTERFACE SCIENCE
(2022)
Article
Chemistry, Analytical
M. Tomic, Z. Fohlerova, I. Gracia, E. Figueras, C. Cane, S. Vallejos
Summary: The (3-aminopropyl)triethoxysilane modified tungsten oxide nanowires sensors exhibit high sensitivity towards ethanol and nitrogen dioxide under UV-irradiation at room temperature. The sensors also show improved selectivity to nitrogen dioxide and ethanol, with approximately 17 and 20 times more sensitivity compared to non-modified sensors. The results are attributed to the reactive amino group facilitating chemical interaction and electron transfer under UV-light excitation.
SENSORS AND ACTUATORS B-CHEMICAL
(2021)
Article
Chemistry, Multidisciplinary
Daba Deme Megersa, Hyeon Ho Cho, Youngho Kim, Gutema Teshome Gudena, Jaeyeong Lee, Jong Seong Bae, Sudong Chae, Hak Ki Yu
Summary: In this study, WO3 micro/nanostructures with position selectivity are prepared through chemical vapor deposition using graphene-catalyzed thermal transport. The effects of growth temperature and oxygen concentration on the structure, morphology, surface chemical states, and electrical properties are investigated. It is observed that the growth temperature and oxygen concentration can influence the resulting morphology and electrical properties. The porous WO3 nanosheets with active surfaces are obtained by combining high temperature and high oxygen concentration. These nanosheets demonstrate good sensitivity, response time, and recovery time for NH3 gas sensing at room temperature.
CRYSTAL GROWTH & DESIGN
(2023)
Article
Chemistry, Multidisciplinary
Qiushi Cheng, Jiayu Chen, Jun Zhao, Fatang Li
Summary: Niobium-based oxides doped with V5+ show improved electronic conductivity and Li+ diffusion coefficient, resulting in enhanced electrochemical performance and cycling stability. This study is of great significance for the design and development of electrode materials for fast Li+ storage.
NEW JOURNAL OF CHEMISTRY
(2023)
Article
Chemistry, Multidisciplinary
Suresh Bandi, Ajeet K. Srivastav
Summary: This study reveals the growth mechanism of W18O49 nanowires on W surfaces under H2O(v) atmosphere and demonstrates phase evolutions in view of detailed thermodynamic considerations. Oxygen vacancy-induced planar defects are responsible for the 1d [010] growth of W18O49 NWs, while hexagonal tunnels along the NW length create a passage for H2O(v) to repeat the reaction and increase the NW length.
Article
Chemistry, Multidisciplinary
Jing Li, Jiao Xu, Yanan Bao, Jianliang Li, Hengshan Wang, Chengyu He, Meiqi An, Huayi Tang, Zhiguang Sun, Yurui Fang, Shuang Liang, Yiming Yang
Summary: This study investigates the ionic behavior in one-dimensional halide perovskites and finds that it is fundamentally different from three-dimensional systems. Anion exchange can drive phase transition and significantly lower the transition temperature in one-dimensional perovskite nanowires. The resulting heterojunction is epitaxial and its chemical composition can be controlled through postannealing.
ADVANCED MATERIALS
(2022)
Article
Physics, Applied
Yohei Yomogida, Mai Nagano, Hiromu Hamasaki, Kaori Hirahara, Yasumitsu Miyata, Kazuhiro Yanagi
Summary: In this study, WTe2 nanowires with diameters of 15-50 nm were successfully synthesized via tellurization method. It was also discovered that sulfurization and selenization reactions result in nanotube structures.
JAPANESE JOURNAL OF APPLIED PHYSICS
(2021)
Article
Chemistry, Physical
Hongbo Liu, Brahim Dkhil
Summary: This study investigates the key parameters triggering the polar transition in tetragonal tungsten bronze structures. The occupancy of specific sites by Sr plays a crucial role in this transition, accompanied by high entropy residual from randomness in cationic arrangement. These findings provide insights for understanding and predicting the emergence of the relaxor state in other crystalline structures.
JOURNAL OF ALLOYS AND COMPOUNDS
(2022)
Article
Materials Science, Ceramics
Yu Chen, Lei Han, Oluwafunmilola Ola, Guangsheng Liu, Nannan Wang, Zakaria Saadi, Ana I. S. Neves, Rana Sabouni Tabari, Kunyapat Thummavichai, Ahmed M. E. Khalil, Yongde Xia, Shibin Sun, Yanqiu Zhu
Summary: In this study, a new fabrication process was developed for highly porous and free-standing 3D silicon carbide nanowire (SiCNW) sponges using electrospinning and carbothermal reduction. The resulting sponges have ultralow density, excellent compressive recoverability, fatigue resistance, superb thermal insulation, and fire-retardance, making them ideal for applications in harsh engineering environments.
JOURNAL OF THE AMERICAN CERAMIC SOCIETY
(2023)
Article
Chemistry, Physical
Huan He, Yongxin Lei, Song Liu, Kunyapat Thummavichai, Yanqiu Zhu, Nannan Wang
Summary: In this study, low-cost Co-ZIF/CNF electrocatalysts with high OER and ORR performance were prepared using electrospinning and simple pyrolysis. The Co-ZIF/CNF catalysts contain both CoOx and Co-N-y active sites, exhibiting bifunctional activity for OER and ORR. The optimized catalyst Co-ZIF(1.5)/10CNF(2) shows outstanding OER and ORR catalytic performance with a low OER overpotential of 390 mV, an onset potential of 0.93 V, and a half-wave potential of 0.85 V for ORR. The catalyst also demonstrates great stability with 87.53% current retention after 12 hours. This study provides a new strategy for designing and preparing bifunctional catalysts for OER and ORR.
JOURNAL OF COLLOID AND INTERFACE SCIENCE
(2023)
Article
Chemistry, Multidisciplinary
Kunyu Chen, Yiwei Huang, Meina Huang, Yanqiu Zhu, Ming Tang, Renjie Bi, Meiping Zhu
Summary: This study demonstrates the fabrication of ultrathin Na-doped BiOCl nanosheets with {001} facets for enhanced photocatalytic performance. The Na-BOC-001 showed better reduction potential, improved O-2 adsorption, and superior charge separation and transfer ability compared to bulk counterparts. The Na-BOC-001 achieved the highest photocatalytic performance for tetracycline hydrochloride degradation under visible-light irradiation.
Article
Green & Sustainable Science & Technology
Ding Chen, Xupeng Qin, Xinyuan Cao, Feng Wei, Kunyapat Thummavichai, Oluwafunmilola Ola, Nannan Wang, Mingjie Jiang, Yanqiu Zhu
Summary: More effective and safe fire prevention solutions are needed for polymer derivatives due to increasing environmental and health concerns. This study presents a novel approach using chemically modified multi-walled carbon nanotubes (H-CNT) and PEGylated inorganic fullerene tungsten sulphide (P-IF-WS2) reinforced PA12 nanocomposites prepared through selective laser sintering (SLS). The addition of H-CNT and P-IF-WS2 improves the fire safety, thermal properties, and mechanical capabilities of the PA12-based nanocomposites. This technique offers a practical and effective way to enhance the flame retardancy of laser-sintered polymer nanocomposites.
JOURNAL OF CLEANER PRODUCTION
(2023)
Article
Chemistry, Multidisciplinary
Shiming Yang, Santosh K. Tiwari, Zhiqi Zhu, Dehua Cao, Huan He, Yu Chen, Kunyapat Thummavichai, Nannan Wang, Mingjie Jiang, Yanqiu Zhu
Summary: In this study, flower-like nanosheet arrays of Mn-doped-NiMoO4/NF were synthesized on nickel foam by a two-step hydrothermal method and a one-step calcination method. The doping of manganese metal ions not only modified the morphologies of the nickel nanosheets but also altered the electronic structure of the nickel center, leading to improved electrocatalytic performance. The Mn-doped-NiMoO4/NF electrocatalysts obtained under the optimum reaction time and Mn doping conditions exhibited excellent oxygen evolution reaction (OER) activity, requiring lower overpotentials compared to pure NiMoO4/NF, and maintained high catalytic activity after continuous operation.
Article
Energy & Fuels
Dehua Cao, Yi Li, Kunyu Chen, Zhen Li, Xinyuan Cao, Qilin Han, Zanhe Yang, Kunyapat Thummavichai, Nannan Wang, Yanqiu Zhu
Summary: PVP-modified and Co-doped Ni(OH)2 nanosheets with structurally robust interconnection are fabricated and show improved capacity performance and cyclic stability. An asymmetric supercapacitor device using P-CoNi-0.5 LDHs and activated cow dung carbon (ACDC) as the electrode materials exhibits high energy and power densities as well as excellent cyclic performance.
JOURNAL OF ENERGY STORAGE
(2023)
Article
Engineering, Environmental
Linshuai Liu, Lifeng Chen, Kunyapat Thummavichai, Zhenxiong Ye, Youbin Wang, Toyohisa Fujita, Xinpeng Wang
Summary: This study successfully prepared an efficient, stable, recoverable and heterogeneous MOF-on-MOF [NH2-MIL-101-on-NH2-UiO-66] adsorbent using the epitaxial growth strategy, and evaluated its iodine gas adsorption performance through various characterization techniques and batch experiments. Results showed that NH2-MIL-101-on-NH2-UiO-66 exhibited higher adsorption rate (20-33%) and adsorption capacity (1.52-2.74 times) compared to parent MOFs, and outperformed commercial silver-exchanged zeolite and other MOFs adsorbents. This adsorbent's excellent performance can be attributed to its abundant adsorption sites and well-defined pore structure, as well as good thermal stability.
CHEMICAL ENGINEERING JOURNAL
(2023)
Article
Chemistry, Physical
John Luke Woodliffe, Jesus Molinar-Diaz, Md Towhidul Islam, Lee A. Stevens, Matthew D. Wadge, Graham A. Rance, Rebecca Ferrari, Ifty Ahmed, Andrea Laybourn
Summary: Magnetic framework composites (MFCs) are an interesting class of materials that combine metal-organic frameworks (MOFs) with magnetic materials. This study presents the synthesis of highly porous magnetic microspheres using a flame-spheroidisation method. The microspheres were then functionalised and used as a scaffold for the growth of MOFs, resulting in macro-micro hierarchically porous MFCs.
JOURNAL OF MATERIALS CHEMISTRY A
(2023)
Article
Chemistry, Multidisciplinary
Daohan Liu, Minli Zeng, Zhen Li, Zhiqi Zhu, Yu Chen, Kunyapat Thummavichai, Oluwafunmilola Ola, Nannan Wang, Yanqiu Zhu
Summary: In this study, a series of P25/Bi2WO6 nanocomposites were synthesized by a simple one-step hydrothermal method. The heterojunction formed between Bi2WO6 and P25 expands the utilization of sunlight by the catalysts and greatly enhances the selective photoreduction of CO2 to CO.
Article
Chemistry, Multidisciplinary
Kunyapat Thummavichai, Thi Hai Quyen Nguyen, Giulia Longo, Dayuan Qiang, Guillaume Zoppi, Derck Schlettwein, Pietro Maiello, Nicole Fleck, Nannan Wang, Yanqiu Zhu
Summary: We investigated the effects of niobium, gadolinium, and erbium doping on tungsten oxide using a single-step solvothermal technique. The findings suggest that metal doping can significantly advance electrochromic glass technology, potentially transforming energy efficiency in buildings.
Article
Materials Science, Multidisciplinary
Li Chen, Ben Huang, Feng Wei, Xiao Guo, Dandan Zhang, Kunyapat Thummavichai, Ding Chen, Nannan Wang, Yanqiu Zhu
Summary: This study successfully synthesized MXene on the surface of a metal-organic framework and incorporated it into a polyamide 12 composite. The resulting composite exhibited improved mechanical strength and fire safety properties. The findings shed light on the underlying mechanism behind the enhancement of mechanical and flame-retardant properties by MXene.
ACS APPLIED POLYMER MATERIALS
(2023)
Article
Chemistry, Multidisciplinary
Xiangying Ma, Qifeng Chen, Changming Han, Shiwen Zhou, Zulong Li, Jiahui Liu, Fengtao Hu, Jiaao Wang, Nannan Wang, Yanqiu Zhu, Jinliang Zhu
Summary: In this study, Rh-2 diatomic site catalysts were successfully achieved on loose porous g-C3N4 hollow nanospheres and applied to photocatalytic CO2 reduction reaction. The Rh-2 DAC overcame the limitations of low electron-hole recombination rate and prolonged the lifetime of photogenerated carriers, leading to high CO2 reduction efficiency and methane selectivity.
ADVANCED FUNCTIONAL MATERIALS
(2023)
