Article
Engineering, Environmental
Zoltan Kovacs, Viktoria Marta, Tamas Gyulavari, Aron Agoston, Lucian Baia, Zsolt Pap, Klara Hernadi
Summary: Zinc oxide hollow spheres were successfully fabricated using sucrose-derived carbon spheres as templates, and the photocatalytic activity was further enhanced by the deposition of noble metal composites. The results showed that the application of carbon sphere templates and the deposition of noble metals played an important role in improving the photocatalytic activity.
JOURNAL OF ENVIRONMENTAL CHEMICAL ENGINEERING
(2022)
Article
Chemistry, Physical
Sonchai Intachai, Teruyuki Nakato, Nithima Khaorapapong
Summary: The study investigated the decoration of zinc oxide nanorods on the layered structure of low carbonate NiAl-layered double hydroxide using hydrothermal method followed by calcination. It was found that the addition of zinc oxide enhanced the photocatalytic degradation of methyl orange, and the band gap energy value of the products was dependent on the amount of zinc oxide.
APPLIED CLAY SCIENCE
(2021)
Article
Chemistry, Physical
Sadegh Askari, Davide Mariotti, Paul Brunet, Alexander Vahl, Jan Benedikt
Summary: The hybrid Zn-air and Zn-M battery with Fe-doped Ni double hydroxide nanoflakes and activated carbon cathode material shows superior performance, high energy density, exceptional energy conversion efficiency, and outstanding power density. It also enables high-rate charging due to rapid redox reaction kinetics and excellent cathode materials catalytic activity.
MATERIALS TODAY ENERGY
(2021)
Article
Chemistry, Multidisciplinary
Xiangwei Wang, Yunyun Zhai, Haiqing Liu
Summary: In this study, nitrogen doped and carbon coated cobalt phosphide hollow nanospheres (CoP@NC HNS) were designed and synthesized as efficient electrocatalysts for the oxygen evolution reaction (OER). The CoP@NC HNS showed a low overpotential, small Tafel slope, and remarkable stability in alkaline electrolyte, making it a promising candidate for renewable energy systems.
NEW JOURNAL OF CHEMISTRY
(2023)
Article
Engineering, Environmental
K. Bhuvaneswari, G. Palanisamy, Kundan Sivashanmugan, T. Pazhanivel, T. Maiyalagan
Summary: The study synthesized multiwall carbon nanotubes supported by zinc-oxide nanoparticles with a ZnMgAl layered-triple hydroxide hybrid via direct hydrothermal treatment. The prepared hybrid material exhibited high photocatalytic activity under visible light, with MWCNT ZnO LTH showing the highest photocatalytic degradation efficiency.
JOURNAL OF ENVIRONMENTAL CHEMICAL ENGINEERING
(2021)
Article
Chemistry, Physical
Hao Wang, Fangyuan Xiao, Pan Liu, Yawei Zhang, Yuruo Qi, Maowen Xu
Summary: Hollow carbon spheres loaded with NiSe2 nano plates were prepared as SeS2 hosts for Li-SeS2 batteries. The proposed cathode material exhibits unique structural features and excellent electrochemical performances, including high initial discharge capacity and excellent cycling life.
JOURNAL OF COLLOID AND INTERFACE SCIENCE
(2022)
Article
Chemistry, Inorganic & Nuclear
Xin-Ying Xiang, Jiu-Lin Zhou, Qin Wang, Yin-Hua Zhu, Zhen-Tao Zhang, Tian-Cheng Ye, Ji-Lei Wang, Qiao-Ling Chen, Yan Xu
Summary: In this study, two metal-oxygen clusters, [Co3Zn(OH)6(SO4)]·4H2O (1) and [Ni3Zn(OH)6(SO4)]·4H2O (2), were designed as photocatalysts. Compound 1 exhibited outstanding photocatalytic activity and weak antiferromagnetic coupling.
INORGANIC CHEMISTRY
(2023)
Article
Chemistry, Analytical
Jai Kumar, Rana R. R. Neiber, Zaheer Abbas, Razium Ali Soomro, Amal BaQais, Mohammed A. A. Amin, Zeinhom M. M. El-Bahy
Summary: In this study, a simple template-free strategy was proposed to synthesize hierarchical hollow sphere NiMn-LDH material with high surface area and exposed active sites for supercapacitor application. The template-free approach allowed the natural nucleation of Ni-Mn ions resulting in thin sheets that self-assembled into a hollow sphere, offering expanded interlayer spaces and abundant redox-active sites.
Article
Chemistry, Physical
Xiu-Juan Xie, Ren-Jun Si, Jun Zheng, Kai Wei, Xiu-Ying Zheng, Cheng Chen, Chun-Chang Wang
Summary: ZnO/NiO hollow spheres were successfully prepared with good purity and crystallinity, showing enhanced humidity response compared to pure materials. The sensor achieved a large impedance variation and fast response/recovery time, demonstrating promising potential for advanced humidity sensor applications.
JOURNAL OF ALLOYS AND COMPOUNDS
(2021)
Article
Nanoscience & Nanotechnology
Anupam Gorai, Dipika Mandal, Kalyan Mandal
Summary: The deposition of dielectric SiO2 and ferrimagnetic CoFe2O4 (CFO) layers on MnFe2O4 (MnFO) nano-hollow spheres (NHS) enhances electromagnetic wave absorption, with MnFO@CFO bi-layered NHSs exhibiting excellent reflection loss performance. The study demonstrates the optimized MnFO@CFO NHS as a highly promising low-cost and lightweight EM wave absorber suitable for practical high-frequency applications.
Article
Engineering, Electrical & Electronic
Ai-Jing Wang, Zhen Jin, Yang Chao, Yu-Ru Sun, Jie Li, Yi Ding
Summary: ZnO hollow flower spheres were successfully prepared using a low-cost and easy-to-operate solvent thermal method combined with heat treatment. The structure and size of the spheres were found to be largely influenced by the growth time, with the spheres formed by ultra-thin and porous nanosheets. The spheres grown for 4 hours showed superior sensing performance in ethanol detection.
SENSORS AND ACTUATORS A-PHYSICAL
(2023)
Article
Chemistry, Analytical
Shichao Wang, Xiaohu Wang, Gaoqun Qiao, Xiaoyan Chen, Xinzhen Wang, Hongzhi Cui
Summary: Core-double shell-structured ZnO@In2O3@ZnO microspheres were successfully synthesized by decorating In2O3 and ZnO on the surface of ZnO hollow microspheres, exhibiting excellent gas sensing properties with high response to gases like ethanol, especially at low concentrations. This superior gas sensing performance was attributed to its high specific surface area, abundant surface defects, and radial electronic modulation mechanism.
SENSORS AND ACTUATORS B-CHEMICAL
(2021)
Article
Chemistry, Multidisciplinary
Wenhui Wang, Hongwei Yan, Utkarsh Anand, Utkur Mirsaidov
Summary: The study reveals the process of MOF nanoparticles converting into LDH nanostructures using liquid-phase transmission electron microscopy. The findings show that maintaining comparable etching and growth rates is crucial for forming hollow nanostructures with the shape of underlying MOF NP template.
JOURNAL OF THE AMERICAN CHEMICAL SOCIETY
(2021)
Article
Chemistry, Multidisciplinary
Sebastian T. Mergelsberg, Mateusz Dembowski, Mark E. Bowden, Trent R. Graham, Micah Prange, Hsiu-Wen Wang, Xin Zhang, Odeta Qafoku, Kevin M. Rosso, Carolyn I. Pearce
Summary: Gibbsite is a common mineral phase with many industrial applications, serving as the solubility limiting phase for aluminum over a wide pH range. By examining defects in gibbsite nanoplates and recrystallizing them in highly alkaline solutions, it has been shown that the crystallinity can be gradually improved and most defects eliminated, highlighting a possible cluster-mediated growth mechanism.
Article
Chemistry, Multidisciplinary
Xiaodong Chen, Zhong-Tao Yang, Nannan Wang, Xin Gao, Gang Wang, Chunyu Song, Yunfeng Liu, Lifeng Cui
Summary: ZnO nanomaterials with stereochemical structure have attracted attention in photocatalytic materials research, but their sensitivity to UV light restricts their application; composites of ZnO with other nanomaterials can enhance photocatalytic activity. TiO2/ZnO cube nanocomposites and Ag/ZnO hollow spheres were successfully synthesized via hydrothermal reaction and chemical deposition, respectively, with the Ag/ZnO hollow spheres showing higher RhB degradation activity under visible light.
NANOTECHNOLOGY REVIEWS
(2021)
Article
Materials Science, Biomaterials
Koichiro Hayashi, Yoshitaka Sato, Wataru Sakamoto, Toshinobu Yogo
ACS BIOMATERIALS SCIENCE & ENGINEERING
(2017)
Article
Materials Science, Biomaterials
Koichiro Hayashi, Yoshitaka Sato, Wataru Sakamoto, Toshinobu Yogo
ACS BIOMATERIALS SCIENCE & ENGINEERING
(2017)
Article
Materials Science, Ceramics
Jan Schultheiss, Oliver Clemens, Sergey Zhukov, Heinz von Seggern, Wataru Sakamoto, Jurij Koruza
JOURNAL OF THE AMERICAN CERAMIC SOCIETY
(2017)
Article
Polymer Science
Makoto Moriya
KOBUNSHI RONBUNSHU
(2017)
Article
Materials Science, Multidisciplinary
Masaya Takemoto, Masatomo Hattori, Koichiro Hayashi, Shin-ichi Yamaura, Wei Zhang, Wataru Sakamoto, Toshinobu Yogo
Article
Polymer Science
Masaya Takemoto, Koichiro Hayashi, Shin-ichi Yamaura, Wei Zhang, Wataru Sakamoto, Toshinobu Yogo
Review
Materials Science, Multidisciplinary
Makoto Moriya
SCIENCE AND TECHNOLOGY OF ADVANCED MATERIALS
(2017)
Article
Crystallography
Yui Oki, Makoto Moriya
Article
Chemistry, Physical
Makoto Moriya, Ryo Takahama, Kazuki Kamoi, Junya Ohyama, Shin Kawashima, Ryoichi Kojima, Mariko Okada, Teruaki Hayakawa, Yuta Nabae
JOURNAL OF PHYSICAL CHEMISTRY C
(2020)
Article
Energy & Fuels
Takaaki Ota, Shota Uchiyama, Keiichi Tsukada, Makoto Moriya
Summary: A novel Mg-ion-conducting molecular crystal, Mg(TFSA)(2)(CPME)(2), was synthesized in this study, showing solid-state ionic conductivity at room temperature with a high Mg-ion transference number of 0.74. These results further support the potential of molecular crystals as candidates for Mg-ion-conducting solid electrolytes.
FRONTIERS IN ENERGY RESEARCH
(2021)
Article
Chemistry, Inorganic & Nuclear
Sawako Mori, Takahito Obora, Mizuka Namaki, Mitsuru Kondo, Makoto Moriya
Summary: The development of solid electrolytes with Mg-ion conductivity at room temperature is crucial for achieving all-solid magnesium batteries. In this study, the researchers focused on organic ionic crystals with ion conduction paths, which demonstrated high Mg-ion conductivity in the solid state. These findings suggest that organic ionic crystals have the potential to be safe solid electrolytes for innovative Mg-ion conductors.
INORGANIC CHEMISTRY
(2022)
Article
Chemistry, Multidisciplinary
Junya Ohyama, Makoto Moriya, Ryo Takahama, Kazuki Kamoi, Shin Kawashima, Ryoichi Kojima, Teruaki Hayakawa, Yuta Nabae
Summary: In this study, the durability of the Fe-14MR complex was compared to that of Fe phthalocyanine (FePc) using in situ X-ray absorption spectroscopy; demetalation of the Fe complexes was directly observed during electrochemical experiments performed under acidic ORR conditions. It was found that Fe-14MR is significantly more resistant to demetalation than FePc during the ORR.
Article
Chemistry, Physical
Ryoma Sasaki, Makoto Moriya, Yuki Watanabe, Kazunori Nishio, Taro Hitosugi, Yoshitaka Tateyama
Summary: Atomistic MD simulations have revealed that Li-ion vacancies in Li(FSA)(SN)(2) crystals support a one-dimensional Li-ion hopping pathway, contrary to conventional wisdom, explaining the exceptionally fast Li-ion conduction. The insights gained from this study on the behavior of organic moieties and Li-ion conduction will drive the development of highly conductive molecular crystals.
JOURNAL OF MATERIALS CHEMISTRY A
(2021)
Article
Chemistry, Multidisciplinary
Kenjiro Tanaka, Yusuke Tago, Mitsuru Kondo, Yuki Watanabe, Kazunori Nishio, Taro Hitosugi, Makoto Moriya
Article
Materials Science, Ceramics
Wataru Sakamoto, Kouta Noritake, Hiroki Ichikawa, Koichiro Hayashi, Toshinobu Yogo
CERAMICS INTERNATIONAL
(2017)
