Article
Materials Science, Multidisciplinary
Qiuxiang Wang, Yongdi Dong, Hongpu Huang, Guifen Du, Peng Zhao, Shuifen Xie
Summary: In this study, porous Cu2O hollow nanospheres (Cu2O-HNSs) were synthesized using a template-free one-pot wet-chemical method. It was found that Cu2O-HNSs with multiple cavities on the shell were formed from porous Cu2O nanospheres through Ostwald ripening, with the concentration of NH2OH·HCl and pH value playing critical roles. Compared to Cu powder, Cu2O-HNSs exhibited enhanced current density and Faraday efficiency of C2 products in the electroreduction of CO2 (CER). This work inspires the synthesis of hollow nanostructures for accelerating the formation of C2 products in CER.
Article
Materials Science, Multidisciplinary
Wenxing Qiu, Jian Zhang, Guoqi Tan, Kefeng Gao, Mingyang Zhang, Zengqian Liu, Zhefeng Zhang
Summary: By establishing a large and stable temperature gradient, this study achieved continuous ice-templating of uniformly ordered macro-porous materials, improving the efficiency and structural uniformity of the materials. Compared with conventional static ice-templating technique, the new approach resulted in finer and more uniform macro-porous architecture, with better alignment and connectivity.
SCIENCE CHINA-MATERIALS
(2022)
Article
Chemistry, Applied
Zhentao Hu, Nan Lu, Fei Wang, Yingjiao Ma, Hanxue Sun, Zhaoqi Zhu, Weidong Liang, An Li
Summary: The facile preparation of conjugated microporous polymer hollow spheres (CMPs-HSs) with high thermal stability and antibacterial properties was achieved, and further improvement in antibacterial performance was demonstrated through doping silver nanoparticles onto the CMPs-HSs (CMPs@Ag-HSs). These novel porous materials show great potential for organic pollution elimination, water treatment, and antibacterial applications.
MICROPOROUS AND MESOPOROUS MATERIALS
(2021)
Article
Chemistry, Physical
Tathagata Kar, Maura Casales-Diaz, Jose Juan Ramos-Hernandez, Oscar Sotelo-Mazon, John Henao, Socorro Valdez Rodriguez, Srinivas Godavarthi, Shude Liu, Yusuke Yamauchi, Mohan Kumar Kesarla
Summary: In this study, a CeO2-x QD@PHC composite was successfully prepared, and its structure and performance were optimized to improve specific capacitance and rate performance. The material exhibited a higher energy density in a supercapacitor configuration.
JOURNAL OF COLLOID AND INTERFACE SCIENCE
(2022)
Article
Chemistry, Physical
Qian Wang, Donghui Zhao, Jialong Yu, Lijie Shi, Yawen Wang, Hongyu Chen
Summary: In this work, Pd4S hollow nanospheres (Pd4S HNSs) were synthesized with a facile wet-chemical method via a self-templating process. The hollow morphology improved the exposure of active sites and prevented aggregation, resulting in improved catalytic performances in the oxygen reduction reactions for Pd4S HNSs.
Article
Chemistry, Physical
Lingqi Huang, Zhiyong Luo, Wenjie Han, Qi Zhang, He Zhu, Shiping Zhu
Summary: In this study, hollow porous carbons (HPCs) were prepared using a simple and cost-effective method, and their potential in catalysis was demonstrated through the fabrication of Au@HPCs yolk-shell composites.
Article
Engineering, Environmental
Wenjiao Song, Xue Teng, Yanli Niu, Shuaiqi Gong, Xiaoming He, Zuofeng Chen
Summary: The rational design of catalysts with well-controlled structures and compositions has been shown to effectively optimize electrochemical performance. Metal-organic frameworks (MOFs) with tunable composition, morphology, and porous structures are desirable for constructing various functional materials. In this study, a self-templating strategy is developed to synthesize hollow Fe-CoxP nanospheres, which exhibit excellent electrocatalytic activity and stability towards the oxygen evolution reaction. The novel self-templating strategy avoids challenges from template removal and could potentially be used to produce a range of functional nanomaterials for applications in electrochemical energy conversion and storage.
CHEMICAL ENGINEERING JOURNAL
(2021)
Article
Chemistry, Physical
Qian Wang, Donghui Zhao, Jialong Yu, Lijie Shi, Yawen Wang, Hongyu Chen
Summary: In this work, Pd4S hollow nanospheres (Pd4S HNSs) were synthesized with a facile wet-chemical method via a self-templating process. The formation mechanism of the Pd4S HNSs was studied, and the size of the Pd4S HNSs can be readily adjusted by tuning the size of the intermediate solid nanospheres. The hollow morphology of Pd4S HNSs enhances the exposure of active sites and prevents aggregation, resulting in improved catalytic performances in the oxygen reduction reactions.
Article
Materials Science, Multidisciplinary
Shaoyi Zhuo, Xing Yu, Cong Wang, Shilong Liu, Xiufang Wang, Yong Tian
Summary: The combination of tannic acid and Pluronic F127 led to the synthesis of hollow metal ion-phenolic capsules, as well as the fabrication of metal-doped hollow mesoporous carbon spheres. This advanced concept eliminates redundant treatments and toxic raw materials, presenting a green paradigm for the preparation of these materials.
Article
Energy & Fuels
Xin Wang, Xinyi Wang, Xiaofeng Zhou, Xinping Yang, Xiaozhong Wu, Pengfei Zhou, Jin Zhou, Shuping Zhuo
Summary: Zinc phytate was used as a sacrificial template to synthesize porous carbon for supercapacitors. The resulting carbon material had a hierarchically porous structure with a specific surface area of 1125 m(2) g(-1). Adjusting the pore structure was achieved by introducing KOH during the preparation of the phytate salt, leading to an increase in micropore content. The introduction of in-situ K activation instead of KOH activation resulted in the formation of dual-metal phytates and contributed to the micropores in the prepared carbon material. With increased microporosity, the specific capacitance of the carbon material improved.
JOURNAL OF ENERGY STORAGE
(2023)
Article
Chemistry, Physical
Yuxin Li, Ziqi Zhang, Minggang Xie, Chunguang Li, Zhan Shi, Shouhua Feng
Summary: This study successfully synthesized an efficient oxygen evolution reaction (OER) electrocatalyst by designing a porous CoP nanoparticles (P-CoP-NPs) composite. The optimized P-CoP-NPs catalyst exhibited low overpotential and superior catalytic stability in alkaline solution, indicating its high-performance potential for water splitting.
APPLIED SURFACE SCIENCE
(2022)
Article
Chemistry, Physical
Shuai Jia, Jie Wei, Baixue Gong, Ziqiang Shao
Summary: The researchers constructed NiCo2S4/CoO multi-shelled hollow spheres using Ni-Co coordination polymer spheres as self-templates and found that they exhibit excellent energy storage properties and accelerated reaction kinetics. Furthermore, when applied in a hybrid supercapacitor device, it achieved a high energy density.
JOURNAL OF ALLOYS AND COMPOUNDS
(2022)
Article
Chemistry, Physical
Qun Yu, De-chang Li, Zhengbin Tian, Chongzhi Zhu, Chengli Jiao, Qian Zhang, Yanping Chen, Yihan Zhu, Heqing Jiang, Jian Liu, Guang-Hui Wang
Summary: In this study, a facile and scalable method for synthesizing single-hole hollow carbon nanospheres (HCH) using poly(ethylene glycol) (PEG)-assisted emulsion templating is developed. The HCH exhibits higher adsorption capacities and faster adsorption rates, indicating the enhancement of liquid-phase adsorption induced by the single-hole hollow structure.
CHEMISTRY OF MATERIALS
(2022)
Article
Chemistry, Inorganic & Nuclear
Xin-Pu Fu, Wen-Zhu Yu, Meng-Yuan Li, Rui Si, Chao Ma, Chun-Jiang Jia
Summary: A facile spray pyrolysis method was used to construct hollow CeO2-Al2O3 spheres with atomically dispersed Fe. The differences in pyrolysis temperature of precursors and heat transfer were crucial to the formation of the hollow nanostructure. Iron species were in situ atomically dispersed on the hollow spheres, showing potential in converting syn-gas to valuable gasoline products.
INORGANIC CHEMISTRY
(2021)
Article
Chemistry, Physical
Xiaofeng Li, Min Wu, Xuechen Xiang, Zixin Ye, Ning Chen, Shiyu Ma
Summary: Hollow concave polystyrene nanoparticles (HC-PSNPs) with controllable concavity and opening size were successfully synthesized using a one-pot method and self-templating dilution strategy.
COLLOIDS AND SURFACES A-PHYSICOCHEMICAL AND ENGINEERING ASPECTS
(2022)
Article
Materials Science, Multidisciplinary
Deyong Zheng, Huihui Jin, Yucong Liao, Pengxia Ji
Summary: In this study, a highly stable and efficient catalyst, fluorine-doped Co3O4 (F-Co3O4), was developed for hydrogen production by water electrolysis. The F-Co3O4 catalyst exhibited a remarkable reduction in overpotential and demonstrated excellent stability for over 100 hours.
Article
Materials Science, Multidisciplinary
Ziwen Lv, Jintao Wang, Fengyi Wang, Jianqiang Wang, Fuquan Li, Hongtao Chen
Summary: Adding Cu6Sn5 nano particles can effectively inhibit the overgrowth of intermetallic compounds at the interfaces of solder joints in electronic devices, providing a solution to this issue. A new growth mechanism of intermetallic compounds at the interfaces was identified.
Article
Materials Science, Multidisciplinary
Jun Wang, Jiawei Chen, Wanru Liao, Fangyang Liu, Min Liu, Liangxing Jiang
Summary: A BiOI/AgI/Ag plasmonic heterostructure photocathode was successfully designed through electrodeposition, ion-exchange, and illumination methods. This photocathode exhibits superior performance in photoelectrochemical water splitting.
Article
Materials Science, Multidisciplinary
Xiaoxiao Liu, Xianxian Zhou, Xiaotao Ma, Qinbo Yuan, Shibin Liu
Summary: In this study, the authors propose a method to accelerate the reaction of polysulfides in lithium-sulfur batteries using a Ni@OC Mott-Schottky heterojunction as a catalyst. The experimental results demonstrate that the charge redistribution at the Ni@OC interface accelerates electron transfer and enhances catalytic activity, leading to improved reaction kinetics and battery performance.
Article
Materials Science, Multidisciplinary
Dayou Ma, Mohammad Rezasefat, Joziel Aparecido da Cruz, Sandro Campos Amico, Marco Giglio, Andrea Manes
Summary: The matrix has a significant effect on the impact resistance of composite materials. Replacing a brittle polymer with a more flexible one can improve impact resistance, but it poses challenges to standard testing methods. This study designs a new fixture for testing the low-velocity impact of soft composites and investigates the effect of the fixture on the mechanical performance.
Article
Materials Science, Multidisciplinary
Lingchang Wang, Qihang Yang, Huzhen Li, Ming Wei, Qian Wang, Zhenzhong Hu, Mengmeng Zhen
Summary: Bronze titanium dioxide (TiO2(B)) is a promising anode material for lithium-ion batteries due to its high specific capacity. However, its practical applications are hindered by poor conductivity and limited electrochemical kinetics. In this study, TiO2(B)-carbon nanosheets heterostructures are synthesized to enhance the cycling performance and rate capability of TiO2(B).
Article
Materials Science, Multidisciplinary
Atul Thakur, Ritesh Verma, Ankush Chauhan, Fayu Wan, Preeti Thakur
Summary: In this study, BaFe12O19 and BaFe12O19: Epoxy (50:50) nanocomposites were synthesized using the co-precipitation method. The structural information and material properties, such as crystallite size and electrical conductivity, were characterized by XRD, FESEM, EDX, and TEM techniques.
Article
Materials Science, Multidisciplinary
Jingyu Wu, Xinyan Ma, Yong Yang
Summary: A well-defined CoS2@NC(CS-500) hierarchical binder-free catalyst cathode is constructed through in-situ grown of ZIF-67 on carbon cloth and high-temperature carbonization. The cathode shows excellent reaction kinetics and electrochemical performance, providing inspiration for developing advanced Li-CO2 battery catalysts.
Article
Materials Science, Multidisciplinary
Svetlana M. Posokhova, Vladimir A. Morozov, Kirill N. Boldyrev, Dina Deyneko, Erzhena T. Pavlova, Bogdan I. Lazoryak
Summary: This study explores the impact of synthesis method and composition on the structure and luminescence properties of K5Eu1-xHox(MoO4)4 with the palmierite-type matrix. The co-doping of Eu3+ and Ho3+ ions plays a critical role in manipulating charge transfer and luminescence efficiency in the visible and infrared regions.
Article
Materials Science, Multidisciplinary
Jian Wang, Yeting Tao, Jingsheng Wang, Youtian Tao
Summary: A new electron-transport material iTPyBI-CN is developed through non-catalytic C-N coupling reaction. It exhibits better electroluminescence efficiency in organic light-emitting diodes compared to the commercial material TPBI, due to its twisted geometry and higher energy levels.
Article
Materials Science, Multidisciplinary
Tao Zhu, Feng Huang, Shuo Li, Yang Zhou
Summary: This article combines XRD analysis and microscopic structural observation to investigate the changes in limestone after high-temperature treatment. It finds that 500 degrees C is the critical temperature for crystalline and spatial arrangement changes in limestone, and the thermal conductivity, specific heat capacity, and heat storage coefficient gradually decrease after thermal treatment.
Article
Materials Science, Multidisciplinary
Muhammad Haekal Habibie, Fransiska Sri Herwahyu Krismastuti, Abdi Wira Septama, Faiza Maryani, Vivi Fauzia
Summary: This study focuses on the synthesis of zinc oxide nanostructure from zinc recovered from galvanization ash and highlights its potential as a sustainable source of zinc and as an antibacterial agent.
Article
Materials Science, Multidisciplinary
Jingyi Li, Yixin Xing, Wei Gu, Shousi Lu
Summary: In this study, PC@CaP microparticles were fabricated using biomimetic mineralization. The results showed that under environmental stress, PC@CaP exhibited improved stability and antioxidative activity, indicating its potential use in high-added value fields.
Article
Materials Science, Multidisciplinary
Yan Liu, Shunyou Chen
Summary: In this study, TNTs were used as a drug carrier and modified with ZIF-8 and silk fibroin to obtain a new drug loading platform. The results showed that this drug-loaded platform had a good drug release effect in vitro and could promote cell proliferation and osteogenic differentiation.
Article
Materials Science, Multidisciplinary
Chunhui Zhu, Wentao Wang, Qing Zhen, Xinning Huang, Shixin Li, Shaochang Wang, Xiaoping Ma, Xiaoxia Liu, Yalong Jiao, Kai Sun, Zhuangzhi Li, Huaixin Yang, Jianqi Li
Summary: A type of stacking fault is revealed in e-InSe crystal, which is associated with a small stacking-fault energy and shows exceptional plasticity.