Article
Engineering, Electrical & Electronic
Shenggang Zhou, Jihao Duan, Yang Xu, Daxin Zhang, Tao Li, Junfeng Liu, Peng Wang, Yong Cao
Summary: In this study, Al/TiB2 + 10%Ti4O7/PbO2-xCeO(2) composite electrode materials were prepared using thermal spraying technology and electrochemical deposition method. The microstructure and phase composition of the coatings with different Ce3+ contents were analyzed. The electrochemical properties of the electrodes were also studied. The results showed that the overall performance of the electrode improved with the increase of Ce3+ concentration, but excessive content led to agglomeration and reduced electrode performance. Therefore, the best comprehensive performance and effect of the electrode were achieved when the Ce3+ concentration was 1.5 g/L. The SEM image also showed that the grains were denser after adding Ce3+ compared to the composite anode without addition.
JOURNAL OF MATERIALS SCIENCE-MATERIALS IN ELECTRONICS
(2022)
Article
Engineering, Environmental
Ke Wang, Xuan Xing, Wen Liu, Yi Jiang, Hongna Li, Yue Lu, Huiying Chen, Huatang Ren
Summary: In this study, a novel PbO2 electrode modified with rare earth elements (La, Ce, Gd and Er) doping was prepared by electrodeposition. The micro-morphology, crystal structure, and electrochemical properties of the modified electrode were characterized. The results showed that rare earth elements doping significantly improved the oxidation ability of the PbO2 electrode by reducing grain size, increasing oxygen evolution potential, enlarging electrochemical active surface area, and enhancing center dot OH formation ability.
JOURNAL OF ENVIRONMENTAL CHEMICAL ENGINEERING
(2023)
Article
Materials Science, Ceramics
Hiroyuki Usui, Yasuhiro Domi, Isaki Uehara, Yoshitatsu Itoda, Eiji Iwama, Naoto Oishi, Noriko Nitta, Hiroki Sakaguchi
Summary: CeO2/Sb2O3 composite materials were studied as anode materials for Na-ion batteries, and the combination of CeO2 and Sb2O3 was found to have a significant impact on the capacity and cyclability of the batteries.
CERAMICS INTERNATIONAL
(2022)
Article
Materials Science, Multidisciplinary
Shilpi Sengupta, Mylarapattana Shankaranarayana Anantha, Handanahally Basavarajaiah Muralidhara, Manab Kundu
Summary: The MnO2/CeO2 nano-composite with mixed nanostructures (nano-rod and nanoparticles) synthesized by a hydrothermal method shows excellent lithium storage performance as an anode in lithium-ion batteries, with specific capacities of 850, 750, 630, and 555 mAh g-1 at different current rates. This is attributed to its ability to enhance volume change buffering, provide a large effective surface area, and improve electronic conductivity.
Article
Green & Sustainable Science & Technology
Ziqi Ning, Xiaoyue Duan, Yitong Li, Xuesong Zhao, Limin Chang
Summary: An electrocatalytic oxidation system with a CeO2-modified PbO2 anode was proposed for the degradation of PVC-MPs. The CeO2-PbO2 electrode showed better electrocatalytic activity and resulted in a significant weight loss of PVC-MPs. The study revealed the degradation mechanism of PVC-MPs.
JOURNAL OF CLEANER PRODUCTION
(2023)
Article
Energy & Fuels
Bohao Yu, Ruidong Xu, Xuanbing Wang, Shiwei He, Buming Chen
Summary: In this study, a novel Pb-0.6%Sb/alpha-PbO2/beta-PbO2-MnO2 composite energy-saving anode was electrodeposited and compared with Pb-based anodes. The composite anode with MnO2 concentration of 20 g/L showed the minimum charge transfer resistance and the best corrosion resistance. The co-deposition of MnO2 effectively refined the grain size and improved the electrocatalytic activity. Compared with Pb-based anodes in long-period zinc electrowinning application, the novel composite energy-saving anodes significantly reduced the cell voltage and power consumption, and improved the current efficiency.
JOURNAL OF ENERGY STORAGE
(2023)
Article
Engineering, Environmental
Youssef El Ouardi, Morad Lamsayah, Svetlana Butylina, Shiyu Geng, Mohammadamin Esmaeili, Alessio Giove, Emile S. Massima Mouele, Sami Virolainen, Soufian El Barkany, Abdelkrim Ouammou, Eveliina Repo, Katri Laatikainen
Summary: Rare earth metals are essential for modern industries and technological development, but their extraction from primary sources has almost reached its limit due to excessive global demand. This study demonstrates the feasibility of using the novel composite material Gle@Na_Be50:50 for the selective recovery of rare earth metals from secondary sources.
CHEMICAL ENGINEERING JOURNAL
(2022)
Article
Chemistry, Physical
Bohao Yu, Ruidong Xu, Buming Chen, Xuanbing Wang, Shiwei He
Summary: In this study, composite electrodes of Pb-0.6%Sb/a-PbO2/I3-PbO2-MnO2(CNTs) with different proportions of a/I3-PbO2 were obtained and compared. The transition layer of a-PbO2 effectively improved the electrodeposition distortion and corrosion resistance of I3-PbO2 surface. The novel composite anode with more I3-PbO2 proportion exhibited lower internal resistance and higher OER electrocatalytic activity. The anode with controlled electrodeposition time of a&I3-PbO2 phases at 1.5 h & 1 h showed the best physical and chemical properties, and its voltage value was significantly lower than that of the traditional Pb-0.8 wt%Ag anode in zinc electrodeposition. Additionally, the compactness of the composite anode was improved, leading to obvious energy-saving effect in long-period zinc electrowinning application.
INTERNATIONAL JOURNAL OF HYDROGEN ENERGY
(2023)
Article
Chemistry, Multidisciplinary
D. Narsimulu, B. N. Vamsi Krishna, R. Shanthappa, Jae Su Yu
Summary: Researchers reported a new composite material, O-CuVSe, as the cathode material for aqueous zinc-ion batteries (AZiBs). The O-CuVSe composite cathode exhibited high specific capacity and excellent cycling stability in a wide potential window. The superior electrochemical properties were attributed to the oxygen vacancy engineering and interlayer doping of Cu ions, which enhanced the structural stability and electron/ion transport kinetics. This study presents a new opportunity for the development of high-voltage and high-capacity cathode materials for AZiBs and other energy storage devices.
Article
Engineering, Chemical
Xuanbing Wang, Junli Wang, Wenhao Jiang, Chen Chen, Bohao Yu, Ruidong Xu
Summary: A sandwich-like MnCo2O4 modifying PbO2 composite electrode was successfully fabricated for zinc electrowinning, exhibiting low Tafel slope and operating potential in a simulated solution, along with robust durability in electrolyte. This study provides a facile synthesis route for composite electrodes and deep insight into the relationship among modifying substances, microstructures, and electrocatalytic activity in zinc electrowinning.
SEPARATION AND PURIFICATION TECHNOLOGY
(2021)
Article
Chemistry, Physical
Zhengting Zhang, Guiyun Yi, Peng Li, Xikui Wang, Xiaodong Wang, Chuanxiang Zhang, Yulong Zhang, Qi Sun
Summary: A novel Eu/GO/PbO2 composite anode with excellent electrocatalytic performance towards the degradation of hydroquinone was prepared by co-electrodeposition method. The Eu/GO/PbO2 electrode exhibited longer service lifetime, higher oxygen evolution potential, and lower charge transfer resistance compared to GO/PbO2 and pure PbO2 electrode.
COLLOIDS AND SURFACES A-PHYSICOCHEMICAL AND ENGINEERING ASPECTS
(2022)
Article
Chemistry, Multidisciplinary
Bo Liang, Tingting Yang, Huiqian Yang, Jinsheng Zhao, Yunyun Dong
Summary: By using humic acid (HA) as a coupling agent, CuO and CNT were connected to form a CuO@HA@CNT composite anode material with a cross-linked network structure. Compared with CuO@HA and CuO@CNT, CuO@HA@CNT showed lower charge transfer resistance, higher conductivity, lithium-ion diffusion coefficient, specific capacity, and rate capability. This study provides a good strategy to optimize the capability of transition metal oxide lithium-ion anode materials.
Article
Nanoscience & Nanotechnology
Ming Li, Matthias Floetenmeyer, Ethan Bryant, Emily Cooper, Shiwei Tao, Ruth Knibbe
Summary: The sodium anode-free battery, which combines low cost and high energy density, is a promising alternative to lithium-ion batteries. However, the uncontrolled dendrite growth of sodium hinders its widespread adoption. This study provides insights into the nucleation and growth behavior of sodium deposition in ethylene carbonate and propylene carbonate through various characterization techniques.
ACS APPLIED MATERIALS & INTERFACES
(2023)
Article
Materials Science, Coatings & Films
Ting-Ting Wei, Yu-Rong Wu, Yu-Shen Zhao, Jun-Hong Zhang, Yan-Rong Zhu, Ting-Feng Yi
Summary: In this study, Bi5Nb3O15 and Bi5Nb3O15@CeO2 anode materials were successfully prepared by a simple solid-state method. The addition of CeO2 decreased the polarization of Bi5Nb3O15 and improved the electrochemical performance, especially with Bi5Nb3O15@CeO2 (5 wt%) showing the best performance.
SURFACE & COATINGS TECHNOLOGY
(2021)
Article
Chemistry, Physical
Zhichao Yu, Wei Zhang, Yongxi Zhang, Yaokun Fu, Ying Cheng, Sanyang Guo, Yuan Li, Shumin Han
Summary: Magnesium hydroxide (MgH2) is a promising material for hydrogen storage, but it has high dehydrogenation temperature and slow sorption kinetics. This study introduces rare earth hydrides and transition metals to improve the de/hydrogenation kinetics of MgH2. The synthesized MgH2-Mg2NiH4-CeH2.73 composite exhibits superior hydrogenation/dehydrogenation characteristics and cycling stability.
INTERNATIONAL JOURNAL OF HYDROGEN ENERGY
(2022)
