Article
Chemistry, Physical
Chaoyang Wang, Shengli Zhu, Yanqin Liang, Chunling Qin, Fang Wang, Hao Wang, Chuntao Chang, Akihisa Inoue
Summary: This study synthesized free-standing nanoporous Ag (NP-Ag) ribbons with a homogeneous and bicontinuous three-dimensional ligament structure using a facile etching method. The NP-Ag ribbons demonstrated stable mechanical performance and excellent flexibility. Additionally, they exhibited remarkable antibacterial capacity, attributed to the rapid release of Ag ions (Ag+) causing damage to bacterial membranes. The in vivo results showed that the NP-Ag ribbons provided rapid antibacterial efficacy and were biosafe due to the long-term stable Ag+ release.
JOURNAL OF COLLOID AND INTERFACE SCIENCE
(2023)
Article
Chemistry, Physical
Zhihao Yang, Xiaoqing Du, Xiaoqiu Ye, Xiaodong Qu, Huiling Duan, Yufeng Xing, Li-Hua Shao, Changan Chen
Summary: The study presents the hydrogen isotope storage properties of free-standing monolithic nanoporous palladium (NP-Pd) with different microstructure feature sizes, showing high hydrogen separation efficiency and reversible storage capacity.
JOURNAL OF ALLOYS AND COMPOUNDS
(2021)
Article
Materials Science, Multidisciplinary
Tingting Yu, Yanyi Zhang, Yixuan Hu, Kailong Hu, Xi Lin, Guoqiang Xie, Xingjun Liu, Kolan Madhav Reddy, Yoshikazu Ito, Hua-Jun Qiu
Summary: Nanostructured high-entropy alloys with tunable compositions have shown enhanced catalytic activities in electrochemical reactions. The multifunctional catalytic performance of these alloys could lead to significant advancements in water splitting, rechargeable batteries, and other energy applications.
ACS MATERIALS LETTERS
(2022)
Article
Chemistry, Multidisciplinary
Hsiao-Ping Hsu, Manjesh K. Singh, Yu Cang, Heloise Therien-Aubin, Markus Mezger, Ruediger Berger, Ingo Lieberwirth, George Fytas, Kurt Kremer
Summary: A new method for creating nanoporous polymer membranes with well defined pore diameters is introduced, which involves mechanical deformation and quenching of highly entangled polymer films. The approach is validated using polystyrene films and does not require chemical processing, supporting substrate, or self-assembly. The resulting membranes exhibit stable properties and impressive elasticity, with pore diameters on the order of ten polymer reptation tube diameters.
Article
Materials Science, Characterization & Testing
Jae-Bum Pyo, Sangmin Lee, Taek-Soo Kim
Summary: The pure swelling characteristic of nanoporous ionomer-bound carbon films under various temperature and humidity conditions was studied by obtaining free-standing films and measuring swelling strain. Macroscopic swelling behavior was observed, contrary to conventional knowledge, with electrical resistance showing significant differences depending on the ionomer content in the electrode. The study revealed a structural transition in the film between macroscopic swelling and electrical resistance.
Article
Chemistry, Multidisciplinary
Dezhong Cao, Bo Wang, Xiaodong Yan, Kunxiao Sun, Tongle Guan, Yan Xu, Zhengquan Guo, He Wang, Xiaohua Ma
Summary: The GaN-based multiple quantum wells (MQWs) are etched in NaNO3 solution and transformed into free-standing nanoporous (NP) GaN-based MQWs embedded on NP GaN reflectors. The free-standing sample exhibits the lowest onset voltage and the maximum photoconversion efficiency among the three samples, attributed to decreased polarization effect, improved visible light utilization capacity, and increased internal quantum efficiency.
CRYSTAL GROWTH & DESIGN
(2023)
Article
Engineering, Electrical & Electronic
M. Hussein El-Shafei, Ahmed G. El-Deen, Ahmed Abd El-Moneim, Amr Hessein
Summary: A hybrid standalone electrode of NiCo2O4 hierarchical nanostructures anchored on CNFs mat was successfully produced for high-performance and substrate-free supercapacitors using a versatile one-step hydrothermal technique. The electrochemical performances of the assembled devices, including specific capacitance, energy, and power densities, were systematically evaluated. Increasing the loading of NiCo2O4 on the CNFs mat showed a positive impact on improving the overall electrochemical performance of the assembled supercapacitors.
JOURNAL OF MATERIALS SCIENCE-MATERIALS IN ELECTRONICS
(2021)
Article
Engineering, Environmental
Hao Liu, Cong Xi, Jinghua Xin, Guoliang Zhang, Shaofei Zhang, Zhijia Zhang, Qin Huang, Jianxin Li, Hui Liu, Jianli Kang
Summary: The study introduces a flexible and free-standing nano porous NiMnFeMo alloy with ultrahigh catalytic activity for both anode and cathode in electrochemical water splitting. The alloy exhibits excellent performance even at high current density and shows superior stability when used in a water electrolyzer. DFT calculations suggest that the catalyst's activity is attributed to the synergetic effect of solid solution elements.
CHEMICAL ENGINEERING JOURNAL
(2021)
Article
Chemistry, Multidisciplinary
Zeyu Xi, Jiuhui Han, Zeyu Jin, Kailong Hu, Hua-Jun Qiu, Yoshikazu Ito
Summary: Nitrogen-doped nanoporous graphene exhibits enhanced catalytic activity and improved performance in metal-air batteries. The design of catalytically active 3D nanoporous graphene enhances the performance of both Mg-air batteries and carbon-neutral technologies.
Article
Chemistry, Analytical
Muhammad Faraz, Muhammad Awais Abbasi, Donghee Son, Changhwan Shin, Kyu-Tae Lee, Sang Min Won, Hyoung Won Baac
Summary: This paper demonstrates the strain-dependent photoacoustic characteristics of free-standing nanocomposite transmitters made of carbon nanotubes, candle soot nanoparticles, and an elastomeric polymer matrix. The results show that transmitters with lower nanoparticle concentration exhibit more flexibility and stretchability in terms of Young's modulus. The dynamic endurance test reveals that both types of transmitters are reliable with low pressure amplitude variation over stretching cycles, suggesting their potential as robust strain sensors.
Article
Chemistry, Physical
Xuefeng Zou, Feng Chen, Mingsen Deng, Yang Zhou, Bin Xiang, Hengxiu Yang, Qibin Wu, Junpeng Ren
Summary: This study proposes an ultrasonic corrosion strategy to regulate the surface of a metal substrate for the fabrication of high-performance electrodes. By forming special lamellar cross-linked CuO nanostructures, the stress and adhesion issues of active materials on the substrate surface can be addressed, resulting in significantly improved cycling stability and specific capacitance of the electrode.
JOURNAL OF COLLOID AND INTERFACE SCIENCE
(2022)
Article
Materials Science, Multidisciplinary
Lidia Benea, Nicoleta Simionescu-Bogatu, Roxana Chiriac
Summary: Nanoporous layers of aluminum oxide were prepared using an anodic oxidation process, and their anticorrosive properties were compared to the unmodified surface of the aluminum alloy. The results showed that the nanoporous layers of aluminum oxide exhibited improved corrosion resistance compared to the untreated aluminum alloy.
JOURNAL OF MATERIALS RESEARCH AND TECHNOLOGY-JMR&T
(2022)
Article
Chemistry, Multidisciplinary
Zhimin Li, Mingxiang Yao, Lantian Zhang, Shuqi Gou, Ziyu Zhang, Yuying Yang, Zhongai Hu
Summary: A flexible self-supporting and binder-free supercapacitor electrode was developed by embedding a polypyrrole nanostructured network into a graphene thin film. The electrode showed excellent electrochemical performance and cycling stability, indicating its potential significance in practical applications.
NEW JOURNAL OF CHEMISTRY
(2022)
Article
Chemistry, Multidisciplinary
Kathleen M. Kennedy, Paul Andrew Kempler, Miguel Caban-Acevedo, Kimberly M. Papadantonakis, Nathan S. Lewis
Summary: Solar fuel devices have shown potential as a sustainable source of chemical fuels, but the long-term stability of light absorbing materials presents a significant barrier. Research has identified multiple corrosion pathways for TiO2-protected Si microwire arrays in a polymer membrane in 1 M KOH(aq), whether attached to a substrate or free-standing.
Article
Chemistry, Multidisciplinary
Juan Meng, Zhihan Tong, Haixin Sun, Yongzhuang Liu, Suqing Zeng, Jianing Xu, Qinqin Xia, Qingjiang Pan, Shuo Dou, Haipeng Yu
Summary: An efficient strategy of introducing boron atoms into phosphorus-doped nanoporous carbon alters the electronic structures of active sites, leading to better catalytic performance. The B/P co-doped nanoporous carbon exhibits remarkable catalytic activity for benzyl alcohol oxidation, achieving high yield and selectivity, as well as low activation energy. Moreover, it maintains high conversion and selectivity after multiple reaction cycles. Density functional theory calculations demonstrate that the introduction of boron significantly increases the electron density and changes the reaction pathway for benzyl alcohol oxidation.
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.