Article
Chemistry, Applied
Chunying Wang, Chuantao Gu, Ting Zeng, Qingqing Zhang, Xianping Luo
Summary: Rare-earth modification Bi2WO6 composites were studied with experimental performance and theory computation, showing enhanced photocatalytic activity for Rhodamine B degradation under simulated solar irradiation. Different rare earth dopants (La, Ce, Gd, Yb) retained the phase and morphology of Bi2WO6 while exhibiting variations in visible light absorption and mineralization. The photocatalytic process was mainly driven by hole oxidation for all RE/Bi2WO6 composites.
JOURNAL OF RARE EARTHS
(2021)
Article
Chemistry, Physical
Tijana Stamenkovic, Dejan Pjevic, Jugoslav Krstic, Maja Popovic, Vladimir Rajic, Vesna Lojpur
Summary: A series of SrGd2O4 samples doped with different concentrations of Sm3+ and Dy3+ were prepared through glycine-assisted combustion synthesis. X-ray Powder Diffraction investigation confirmed the presence of pure orthorhombic lattice SrGd2O4. Energy Dispersive X-ray Spectroscopy showed that the desired elements were incorporated in the structure. Field Emission Scanning Electron Microscopy revealed the morphology of the samples as porous aggregated particles consisting of approximately 50 nm-sized spherical particles. Mercury Intrusion Porosimetry demonstrated the presence of a real permanent 3D pore structure. X-ray Photoelectron Spectroscopy confirmed the successful incorporation of Dy3+ and Sm3+ ions. Down-conversion luminescence spectra showed typical emission transitions for Sm3+ and Dy3+ ions. The energy band gap of the doped samples was calculated to be 4.3 eV using UV-VIS Diffuse Reflectance Spectroscopy. UV-VIS Absorption Spectroscopy observed the photocatalytic degradation process, with approximately 50% of Rhodamine B being mineralized after 4 hours of simulated Sun exposure.
SURFACES AND INTERFACES
(2023)
Article
Materials Science, Multidisciplinary
Julia C. Peixoto, Andre E. Nogueira, Anderson Dias, Juliana A. Torres, Jean C. da Cruz, Caue Ribeiro, Kisla P. F. Siqueira
Summary: By modifying MnWO4 with rare earth ions, the activity and selectivity of the products formed in CO2 photoreduction process can be tuned, providing a way to manage CO2 emissions.
MATERIALS RESEARCH BULLETIN
(2022)
Review
Chemistry, Physical
Bao Lee Phoon, Chong Cheen Ong, Kuan-Ching Lee, Guan-Ting Pan, Bey Fen Leo, Siewhui Chong, Kuan-Lun Pan
Summary: Rapid industrialization and overpopulation have caused energy shortages and environmental pollution. Metal-free photocatalysts have gained attention for their environmental-friendly nature. Multi-elemental and rare-earth doping can enhance the performance and applications of graphitic carbon nitride (GCN).
Article
Nanoscience & Nanotechnology
Yakun Sun, Long Li, Xinxu Li, Ya-Nan Feng, Fei-Fei Chen, Lingyun Li, Yan Yu
Summary: This work demonstrates the critical roles of rare earth compounds (Er2O3 and ErF3) in regulating the activity and selectivity of CO2 reduction reaction on cobalt, improving CO selectivity and catalytic efficiency.
ACS APPLIED MATERIALS & INTERFACES
(2023)
Article
Biochemistry & Molecular Biology
Pornsawan Sikam, Ruhan Thirayatorn, Thanayut Kaewmaraya, Prasit Thongbai, Pairot Moontragoon, Zoran Ikonic
Summary: This research focuses on enhancing the thermoelectric performance of SrTiO3 semiconductors through co-doping with La, Dy and N atoms. By conducting first-principles calculations, it is found that the (La, N) co-doped STO exhibits the highest figure of merit of 0.79, making it a promising candidate for high-temperature applications.
Review
Chemistry, Inorganic & Nuclear
Daniele Paderni, Luca Giorgi, Vieri Fusi, Mauro Formica, Gianluca Ambrosi, Mauro Micheloni
Summary: Rare earth elements (REEs) are a group of elements playing critical roles in modern applications, with scientists showing strong interests in their new applications. However, the development of chemical sensors suitable for selective sensing of REE ions remains a challenging task due to their complicated coordination properties.
COORDINATION CHEMISTRY REVIEWS
(2021)
Article
Chemistry, Physical
Qingyun He, Xingqiang Liu, Feng Li, Fang Li, Leiming Tao, Changlin Yu
Summary: In this study, pure Bi2O2CO3 and various rare earth-doped Bi2O2CO3 samples were prepared by hydrothermal method. The doping of rare earth ions promoted the transformation of Bi2O2CO3 to β-Bi2O3 phase, resulting in a mixed crystal phase photocatalyst. The rare earth-doped samples showed enhanced photocatalytic degradation activity of dimethyl phthalate under light illumination, attributed to larger specific surface area, stronger absorption of visible light, and improved charge transfer efficiency.
Article
Engineering, Environmental
Rui Li, Tongtong Chen, Jingwen Lu, Huiling Hu, Han Zheng, Pengfeng Zhu, Xiangliang Pan
Summary: Photocatalytic and photothermal disinfection using metal-ion-doped MOFs shows promising potential for tackling environmental microbial contamination. In this study, Co2+-doped ZIF-8 with a 5% doping concentration exhibits the highest sterilization efficiency against E. coli under simulated sunlight due to enhanced photothermal effect and generation of multiple ROS. The findings provide insights into the application of metal-ion-doped MOF photocatalysts for disinfection of environments with pathogenic microorganisms.
Article
Chemistry, Applied
Jin Tang, Zhili Chen, Xiaolong Yu, Walter Z. Tang
Summary: A novel black oxygen deficient bismuth oxide photocatalytic material was successfully prepared. Doping of lanthanum, cerium, and erbium ions resulted in a large number of oxygen vacancies. The material effectively separated the photogenerated electron-hole pairs, reducing the possibility of charge carrier recombination and degrading tetracycline hydrochloride.
JOURNAL OF RARE EARTHS
(2022)
Article
Environmental Sciences
Tongtong Zhang, Siyu Zhang, Chenyu Wu, Huiru Zuo, Qishe Yan
Summary: Controlling semiconductor photocatalysts by doping rare-earth ions is an effective strategy to improve photocatalytic performance. In this study, La3+ and Sm3+ modified Bi5O7I nanomaterials were prepared using simple solvothermal and calcination methods. The photocatalytic activity of the samples was evaluated and the results showed that 4S4L-Bi5O7I exhibited the highest degradation efficiency for TC and RhB. The co-doping of La and Sm expanded the light absorption range, improved charge separation efficiency, and enhanced the photocatalytic activity of Bi5O7I.
Review
Materials Science, Multidisciplinary
Yisheng Xu, Yaoheng Liang, Qingqing He, Ruoling Xu, Dongchu Chen, Xuejun Xu, Huawen Hu
Summary: Strontium titanate, as a representative composite metal oxide, has significant application potentials but suffers from fatal weaknesses in its pure-phase form. Researchers have made efforts to improve its structure for enhanced photocatalytic performance, with doping treatments being a focus; however, challenges remain.
BULLETIN OF MATERIALS SCIENCE
(2022)
Article
Chemistry, Applied
Jing Rong, Wanxia Zhao, Wen Luo, Keke Kang, Lulu Long, Yang Chen, Xiaojiang Yao
Summary: In this study, MnXOx catalysts (including MnSmOx, MnNdOx, MnCeOx) were prepared and used for NH3-SCR reaction. Among them, MnCeOx catalyst exhibited the best low temperature catalytic activity (with over 90% NOx conversion in the temperature range of 125-225°C) and excellent resistance to H2O + SO2. Characterization analysis revealed that MnCeOx catalyst had the highest amount of acid sites and the best reducibility, and the Ce4+ doping inhibited the crystallization of the catalyst and resulted in the largest specific surface area. Furthermore, in situ DRIFTS experiments showed that the NH3-SCR reaction over MnCeOx catalyst proceeded via both Langmuir-Hinshelwood (LH) and Eley-Rideal (E-R) mechanisms, indicating a fast SCR reaction.
JOURNAL OF RARE EARTHS
(2023)
Article
Chemistry, Inorganic & Nuclear
Manasa Sunku, Ravi Gundeboina, C. H. Shilpa Chakra, Vimala Kaniki Reddy, M. Vithal
Summary: This study presents a reliable design of a nitrogen and carbon doped CoSb2O6 photocatalyst for the efficient degradation of dye-contaminated water, showing remarkable photodegradation activities of up to 99% in 120 mins under visible light irradiation.
INORGANIC CHEMISTRY COMMUNICATIONS
(2021)
Article
Chemistry, Multidisciplinary
Huajun Yang, Fang Peng, Danielle E. Schier, Stipe A. Markotic, Xiang Zhao, Anh N. Hong, Yanxiang Wang, Pingyun Feng, Xianhui Bu
Summary: Selective crystallization into metal-organic frameworks (MOFs) presents new opportunities for rare-earth separation. The development of MOF platforms with high selectivity toward target ions, such as the CPM-66 platform, shows exceptional ion-size selectivity during crystallization. This work provides insights into preparing low-coordinate MOFs for efficient lanthanide separation and other applications.
ANGEWANDTE CHEMIE-INTERNATIONAL EDITION
(2021)
Article
Engineering, Environmental
Xinxin Wang, Jingjing Chen, Zhiyong Mao, Dajian Wang
Summary: The study demonstrated that doping lanthanide ions can enhance the ionic conductivity and relative density while reducing the electronic conductivity of NASICON electrolytes, leading to improved resistance to dendrite growth in solid-state lithium/sodium batteries.
CHEMICAL ENGINEERING JOURNAL
(2022)
Article
Materials Science, Multidisciplinary
Da Xu, Wei Wang, Zhiwei Zhang, Zhiyong Mao, Dajian Wang
Summary: This study demonstrates the water durability of PiG based on SnCl2-P2O5-ZnO glass matrix. The addition of ZnO significantly enhances the water durability of SnCl2-P2O5-based PiG without noticeable loss of light output.
FUNCTIONAL MATERIALS LETTERS
(2022)
Article
Engineering, Electrical & Electronic
Wei Wang, Da Xu, Jingjing Chen, Zhiyong Mao, Dajian Wang
Summary: The unique luminescence properties of far-red emitting materials make them important components in phosphor-converted LEDs for plant cultivation. The synthesized Sr3NaNbO6:Mn4+ phosphor with far-red emitting can meet the requirements of practical application for indoor plant cultivation.
JOURNAL OF MATERIALS SCIENCE-MATERIALS IN ELECTRONICS
(2022)
Article
Electrochemistry
Xiaotong Wang, Jingjing Chen, Chenlong Dong, Dajian Wang, Zhiyong Mao
Summary: This study demonstrates the conversion of commercial graphite into hard carbon material through a mechanochemical method, resulting in significantly improved lithium-ion storage performance. The obtained hard carbon anode exhibits higher lithium storage capacity, attributed to the presence of defects induced by the mechanochemical process serving as active sites.
Article
Chemistry, Physical
Xinxin Wang, Wentao Mei, Jingjing Chen, Dajian Wang, Zhiyong Mao
Summary: Rare earth oxide-assisted sintering method was successfully utilized to enhance the ionic conductivity and restrict dendrite formation in NASICON-type solid-state electrolytes for sodium metal batteries, showing promising results in critical current density values and discharge capacity after cycles.
ACS APPLIED ENERGY MATERIALS
(2022)
Article
Materials Science, Multidisciplinary
Huirong Ma, Hongyang Zhao, Yuexin Song, Shan Liu, Zhiyong Mao, Dajian Wang
Summary: The control of polymorphism transition of Eu2+ ion-doped alumina and the investigation of luminescent properties have been demonstrated using sol-gel method. The dispersion of precursor constituents and the adjustment of polymorphic transition temperatures and luminescence properties are effectively achieved by utilizing boehmite sol-gel with nanosized gamma-AlOOH particulates.
FUNCTIONAL MATERIALS LETTERS
(2022)
Article
Electrochemistry
Yuqiu Shao, Xinxin Wang, Bingchen Li, Huirong Ma, Jingjing Chen, Dajian Wang, Chenlong Dong, Zhiyong Mao
Summary: P2-type manganese-based oxides have attracted considerable attention as high-energy-density and low-cost cathodes in sodium ion batteries (SIBs). However, they still suffer from slow kinetics and the unfavorable Jahn-Teller effect. In this study, a thin layer of well-known Na3Zr2Si2PO12 was coated on the surface of P2-type Na0.612K0.056MnO2 to enhance the electrochemical sodium storage and structural stability. The coated material showed improved discharge capacity, capacity retention, and Na+ diffusion coefficient, making it a promising option for high-performance cathodes in SIBs.
ELECTROCHIMICA ACTA
(2023)
Article
Chemistry, Physical
Xiaole Yu, Yiwei Yao, Xinxin Wang, Shangxu Cen, Dongchen Li, Huirong Ma, Jingjing Chen, Dajian Wang, Zhiyong Mao, Chenlong Dong
Summary: This study successfully addresses the challenging interfacial issues in solid-state sodium metal batteries through ultrasound welding strategy and achieves stable operation of a room-temperature sodium metal full battery.
ENERGY STORAGE MATERIALS
(2023)
Article
Chemistry, Physical
Zhongrui Yu, Xiaole Yu, Mengnuo Fu, Jingjing Chen, Dajian Wang, Chenlong Dong, Zhiyong Mao
Summary: A lithiophilic Ag nanowires-fenced 3D carbon cloth current collector (Ag NWs/CC) has been developed to address the safety issues caused by dendritic lithium growth. The Ag NWs/CC current collector effectively reduces local current density, regulates Li nucleation, and alleviates dendritic lithium growth, resulting in high Coulombic efficiency and stable cyclic performance.
Article
Materials Science, Ceramics
Qi Guo, Xinxin Wang, Mengnuo Fu, Xiaole Yu, Jingjing Chen, Dajian Wang, Chenlong Dong, Zhiyong Mao
Summary: Ensuring a highly stable Na anode/solid-state electrolyte (SSE) interface is crucial for engineering robust solid-state sodium metal batteries (SSMB). This study demonstrates that the polish procedure of ceramic SSE pellets can influence the compatibility and wettability of Na on SSE pellets, leading to variations in roughness, contact area, and ravines. By optimizing the surface microstructure of SSE pellets through polishing, the researchers achieved a stable cycling performance of 5000 hours at room temperature.
CERAMICS INTERNATIONAL
(2023)
Article
Materials Science, Ceramics
Yiwei Yao, Huirong Ma, Xiaole Yu, Xinxin Wang, Jingjing Chen, Liqiang Lu, Dajian Wang, Chenlong Dong, Zhiyong Mao
Summary: In this work, a mixed ionic-electronic (MIE) conductive layer (Na-Sn alloy and Na2S) is in-situ constructed to engineer the intimate Na/BetaAl2O3-MIE interface, reducing the interfacial resistance. By incorporating this ameliorative interface into solid-state sodium metal batteries (SSMBs), stable cycling performance and high capacity retention are achieved.
CERAMICS INTERNATIONAL
(2023)
Article
Electrochemistry
Bingchen Li, Mei Wang, Yuanxia Zhang, Qi Guo, Ru-Ning Tian, Jingjing Chen, Dajian Wang, Chenlong Dong, Zhiyong Mao
Summary: In this work, Cu and Al elements are respectively doped into Mn sites and Li sites to reinforce the structural stability of LiMn2O4 cathode materials. The synthesized Li1-3xAlxMn1.75Cu0.25O4 shows enhanced cyclic capacity and stability under wide electrochemical window. Cu doping enhances the phase transformation reversibility between & lambda;-MnO2 and LiMn2O4, while Al doping strengthens the cubic-to-tetragonal reversibility. This work provides an effective strategy for engineering stable LiMn2O4 spinel cathodes under high current density and wide potential window for lithium ion battery.
ELECTROCHIMICA ACTA
(2023)
Article
Chemistry, Physical
Mengnuo Fu, Xilin Zhang, Wujie Dong, Bingchen Li, Ru-Ning Tian, Qi Guo, Jingjing Chen, Dajian Wang, Chenlong Dong, Zhiyong Mao
Summary: Benefiting from abundant Na resources and high theoretical capacity, rechargeable sodium metal batteries show great potential for next-generation energy storage systems. However, there are several challenges of Na anodes, including high activity of Na metal, uncontrollable dendrite growth, and unstable solid-electrolyte interface (SEI). In this study, a liquid alloy of Ga, Sn, and In was coated on commercial Cu foil to regulate Na plating/stripping behaviors and achieve stable sodium metal batteries.
ENERGY STORAGE MATERIALS
(2023)
Article
Chemistry, Multidisciplinary
Shuoyu Wang, Yuanxia Zhang, Ru-Ning Tian, Mengnuo Fu, Jingjing Chen, Dajian Wang, Chenlong Dong, Zhiyong Mao
Summary: The high activity of the In2O3/In2S3 heterostructure can be activated into homogeneous In2OxS3-x nanodots, stabilizing subsequent cycles. The In2O3/In2S3 shows a high capacity of 1140 mA h g(-1) at 0.1 A g(-1) after 290 cycles, and even at 1 A g(-1), it retains a reversible capacity of 900 mA h g(-1) after 600 cycles.
CHEMICAL COMMUNICATIONS
(2023)
Article
Chemistry, Physical
Dongchen Li, Xinxin Wang, Qi Guo, Xiaole Yu, Shangxu Cen, Huirong Ma, Jingjing Chen, Dajian Wang, Zhiyong Mao, Chenlong Dong
Summary: Solid-state sodium metal batteries are highly attractive for large-scale energy storage due to their high safety, high energy density, and low cost. However, the practical application has been hindered by large interfacial resistance and sodium dendrite growth. In this study, a modified ultrasound welding technique was proposed to improve the interface between Na anodes and Au-metalized Na3Zr2Si2PO12 electrolytes. The results showed that the modified interface exhibited low interfacial resistance and strong dendrite inhibition ability, enabling stable cycling and high current density. Considering the importance of energy density, a full battery with a solid-state electrolyte and Na3V2(PO4)(3) cathode achieved high energy density and power density. The assembly of a pouch-type solid-state sodium metal full battery demonstrated the potential of this strategy to engineer low-resistance and highly stable interfaces for high-energy/density solid-state sodium metal batteries.
