Article
Chemistry, Physical
Di Chen, Guofu Li, Xing Chen, Qian Zhang, Jing Sui, Chengjie Li, Yingchao Zhang, Jing Hu, Jianhua Yu, Liyan Yu, Lifeng Dong
Summary: Innovative synthesis of multi-doped carbon nanotubes (CoFeNi@CNT) with metal-nitrogen-carbon and CoFeNi nanoparticles as dual-active-sites enables high performance in both oxygen reduction and oxygen evolution reactions, showing potential for rechargeable Zn-air batteries.
JOURNAL OF COLLOID AND INTERFACE SCIENCE
(2021)
Article
Chemistry, Physical
Satoshi Ogawa, Kei Nakayama, Misaki Katayama, Ryo Ishikawa, Yuichi Ikuhara, Miwa Saito, Teruki Motohashi
Summary: This study reports the fabrication and characterization of gas diffusion electrodes (GDEs) incorporating melilite-type oxide electrocatalysts. The mixed melilites showed high OER activity and durability, with potential applications in practical electrocatalysis for metal-air batteries.
ACS APPLIED ENERGY MATERIALS
(2022)
Article
Chemistry, Physical
Yang Zhang, Manning Zhao, Qian Yang, Mingyang Lai, Junyuan Zhang, Changyu Liu, Xiaolong Xu, Jianbo Jia
Summary: In this study, a self-limiting method using agarose gel was proposed to prepare bimetallic (iron and cobalt) nitrogen-doped carbon composites (FeCo-NC) as efficient electrocatalysts. The optimized FeCo-NC catalyst exhibited a small potential difference between the oxygen reduction reaction (ORR) half-wave potential and the oxygen evolution reaction (OER) potential, and demonstrated excellent performance in Zn-air batteries. This research provides an effective means of designing electrocatalysts and energy conversion systems.
JOURNAL OF COLLOID AND INTERFACE SCIENCE
(2023)
Article
Chemistry, Physical
Jin Yan, Meng Tian, Ruhua Shi, Tianyi Gu, Kai Zeng, Junhua Zhou, Qian Zhang, Mark H. Ruemmeli, Ruizhi Yang
Summary: Dual-atomic Fe-Ni pairs dispersed in hierarchical porous nitrogen-doped carbon exhibit remarkable bifunctional catalytic activities. The engineered electronic structure of Fe coordinated with Ni enables the catalysts to achieve high half-wave potential for oxygen reduction reaction and low potential at 10 mA/cm2 for oxygen evolution reaction. The enhanced catalytic activity is attributed to the electronic interaction between Fe-Ni sites, which lowers the adsorption energy of oxygen intermediates. The catalysts also show promising performance in practical applications, such as Zn-air batteries.
MATERIALS TODAY ENERGY
(2022)
Article
Engineering, Environmental
Jui-En Tsai, Wei-Xiang Hong, Hamed Pourzolfaghar, Wei-Hsuan Wang, Yuan-Yao Li
Summary: By anchoring a Fe-Ni-Zn triple single-atom catalyst (SAC) in a nitrogen-doped porous carbon framework, the catalytic performance and battery performance of the rechargeable Zn-air battery (ZAB) can be significantly improved.
CHEMICAL ENGINEERING JOURNAL
(2023)
Article
Chemistry, Multidisciplinary
Juan Zhang, LuLu Chen, Bowen Lu, Yanhui Guo
Summary: This article reports a method to prepare bifunctional electrodes for water electrolysis system, which simplifies the process. The electrodes are constructed using a hierarchical porous structure with a conductive electrocatalyst, showing stable and efficient performance. The study provides a new perspective for the rational design of transition metal-based bifunctional electrodes with outstanding performance.
Article
Chemistry, Physical
Peng Chu, Hailei Zhao, Jie Wang, Hongliang Xie, Chongqi Han, Zhao Yang
Summary: This study investigates the influence of negative current collectors on the performance of liquid metal batteries and develops a graphite-coated Ni-Fe foam as an effective negative current collector. The prepared collector exhibits improved cycling performance, high Coulombic efficiencies, and outstanding rate capability, highlighting the importance of lithiophilicity and corrosion resistance ability of negative current collectors for LMBs.
JOURNAL OF ALLOYS AND COMPOUNDS
(2022)
Article
Chemistry, Multidisciplinary
Yixiang Pan, Xiaoyan Wang, Hua Lin, Qinghua Xia, Maoxiang Jing, Weiyong Yuan, Chang Ming Li
Summary: Researchers have successfully synthesized a three-dimensional heterostructured nanomaterial with superior oxygen evolution reaction (OER) activity and high hydrogen evolution reaction (HER) activity for water splitting. This material consists of highly dense, ultrathin nanowires grown on interconnected layered nanosheets, providing numerous electrochemically active sites and promoting OER and HER. This study not only develops a low-cost, highly efficient bifunctional catalytic electrode for water splitting, but also demonstrates a novel strategy to enhance electrocatalytic activities using heteronanostructures with rich surface defects.
Article
Chemistry, Multidisciplinary
Zhiyuan Xu, Xuejiang Zhang, Xingdong Wang, Jinjie Fang, Yufeng Zhang, Xuerui Liu, Wei Zhu, Yushan Yan, Zhongbin Zhuang
Summary: The successful synthesis of Ag-Ni-Fe-P MENPs with excellent catalytic activity in oxygen reduction and oxygen evolution reactions has been achieved. These nanoparticles demonstrate higher activity in ORR and OER than traditional catalysts, showing the significance of multifunctional catalysts with synergistic effects in the fabrication of high-efficiency zinc-air batteries.
Article
Engineering, Environmental
Xiangsi Wu, Zhiqiang Zhang, Caimei He, Yanhao Shen, Xianwen Wu, Hongqiang Wang, Zhaoling Ma, Qingyu Li
Summary: This study presents a method to prepare mixed-valence cobalt oxide with regulatable ratio by introducing air at a certain temperature. The resulting nanosphere-shaped material shows multiple heterointerfaces and rich oxygen vacancies, exhibiting exceptional oxygen reduction reaction and oxygen evolution reaction activity. This material also performs well in zinc-air batteries and magnesium-air batteries, with excellent electrochemical performance.
CHEMICAL ENGINEERING JOURNAL
(2023)
Article
Chemistry, Analytical
Yaling Gao, Tongrui Zhang, Yuezhen Mao, Jingyu Wang, Chunwen Sun
Summary: In this study, CoFeRu-LDH catalyst with bifunctional properties was successfully synthesized by hydrothermal method and partial oxidation, resulting in oxides/LDH. The catalyst exhibited excellent bifunctional activity in zinc-air batteries, with a high voltage difference and good cycle stability, demonstrating its potential practical application.
JOURNAL OF ELECTROANALYTICAL CHEMISTRY
(2023)
Article
Chemistry, Physical
Ya-yun Li, Qiuming Zou, Zhangjian Li, Dong Xie, Yuan Niu, Jizhao Zou, Xierong Zeng, Junfeng Huang
Summary: The newly synthesized Ni-Fe alloy embedded graphitic carbon electrocatalyst exhibits superior performance in oxygen reaction, with high onset potential and half-wave potential. Additionally, it shows excellent long-term stability and anti-methanol ability, demonstrating great electrocatalytic characteristics.
APPLIED SURFACE SCIENCE
(2022)
Article
Chemistry, Physical
Zeming Lu, Hang Zhou, Bin Qian, Shun Wang, Yifeng Zheng, Lin Ge, Han Chen
Summary: In this study, A-site Y and B-site Fe co-doped La0.85Y0.15-Ni0.7Fe0.3O3 perovskite catalyst was prepared and evaluated for zinc-air batteries. The co-doping significantly improved the oxygen reduction and oxygen evolution reactions of LaNiO3. The La0.85Y0.15Ni0.7Fe0.3O3 catalyst exhibited high performance and stability, making it a promising bifunctional air electrode catalyst for zinc-air batteries.
INTERNATIONAL JOURNAL OF HYDROGEN ENERGY
(2023)
Article
Nanoscience & Nanotechnology
Dongdong Li, Jianwen Liang, Stuart J. Robertson, Yingtong Chen, Naiguang Wang, Minhua Shao, Zhicong Shi
Summary: In this study, a bimetallic organic coordination polymer was synthesized and pyrolyzed to form nanoparticles as a bifunctional catalyst in Li-O-2 batteries. The catalyst exhibited excellent ability for oxygen reduction and evolution reactions, and the mesoporous channels in the nanoparticles promoted reactant diffusion and product storage.
ACS APPLIED MATERIALS & INTERFACES
(2022)
Article
Chemistry, Physical
Yue Du, Wenxue Chen, Zhiyi Zhong, Shizhu Wang, Lina Zhou, Dongbin Xiong, Yisi Liu, Zhenhui Liu, Kai Wang
Summary: An in-situ polyaniline nitriding strategy was developed to fabricate WN-Ni heterostructured catalysts with excellent activity towards both ORR and OER. The as-fabricated WN-Ni catalyst exhibited a half-wave potential of 0.76 V for ORR and an over-potential of 1.68 V at 10 mA cm-2 for OER. The assembled rechargeable ZAB using this catalyst achieved a high power density of 165 mW cm-2 and showed outstanding stability after > 400 hours of discharge-charge cycles. The excellent activity of the WN-Ni catalyst can be attributed to its hierarchical nanorod-nanoparticle structure, proper crystallinity, and good charge/mass transfer ability.
JOURNAL OF ALLOYS AND COMPOUNDS
(2023)
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.