Article
Chemistry, Physical
Yinyi Luo, Xingxing Jiang, Yanjun Yu, Lidan Liu, Xiangtao Lin, Zhikai Wang, Lei Han, Zhiwei Luo, Anxian Lu
Summary: The solid-phase reaction method was used to prepare ceramics samples doped with five ions (Al3+/Sc3+/Y3+/Cr3+/Ga3+) based on LiTi2(PO4)3 crystalline phase. The crystalline phase structure, sintering properties, and electrical properties of the samples were investigated, and the performance differences of different ion-doped Li-Ti-P-O systems were compared. Ga3+ ion doping had the greatest effect on promoting structural densification and increasing conductivity, with the sample doped with Ga3+ ion showing the highest conductivity, relative density, and the lowest activation energy.
SOLID STATE IONICS
(2023)
Article
Chemistry, Physical
Tong Xu, Mingshu Zhao, Zhou Su, Wenyuan Duan, Yuanzhe Shi, Zheng Li, Vilas G. Pol, Xiaoping Song
Summary: Aqueous alkali metal ion batteries with LiTi2(PO4)(3)@C/CNTs (LTP@C/CNTs) composite anode exhibit improved rate and cycling performance at high current densities compared to LiTi2(PO4)(3)@C (LTP@C). The composite anode also demonstrates a two-step sodium ion insertion/extraction behavior in ASIBs, with the LTP converting into a NTP phase after cycling, showing great potential for next-generation aqueous energy storage systems.
JOURNAL OF POWER SOURCES
(2021)
Article
Chemistry, Physical
Yiting Liao, Lanzhen Peng, Xiaosong Zhou, Jin Luo, Limei Xu, Xiaomei Ning, Xiaoqin Zhou, Xunfu Zhou, Yueping Fang
Summary: The challenges of separation and utilization of photogenerated charge carriers in photocatalysis have limited its wider applications. Surface modification of photocatalysts, such as CdS nanorods modified by an ion-conducting LiTi2(PO4)3 (LTP) shell, can improve the separation and utilization of photoinduced charge carriers. This study demonstrates that CdS@LTP composite photocatalyst can achieve a high H2 evolution rate without cocatalysts and CdS@LTP-Pt can achieve efficient overall water splitting with a high H2 generation rate.
APPLIED SURFACE SCIENCE
(2023)
Article
Electrochemistry
A. M. A. Fami, N. A. Wahab, M. S. A. Rani, M. K. Yaakob, N. A. Mustaffa
Summary: The structural and electronic properties of NASICON-structured LiTi2(PO4)(3) and Mg0.5Ti2(PO4)(3) were calculated using first-principles Density Functional Theory (DFT). Geometrical optimization was performed before applying different exchange-correlation energy functionals. Local Density Approximation (LDA) and Generalized-Gradient Approximation functional with Perdew-Burke-Ernzerhof (GGA-PBE) were employed to investigate the structural and electronic properties of both materials. The calculated parameters, such as band gap, electronic density of states, and partial density of states, were presented.
INTERNATIONAL JOURNAL OF ELECTROCHEMICAL SCIENCE
(2022)
Article
Chemistry, Physical
Zixiang Guo, Xue Qin, Yulong Xie, Chanrong Lei, Tianyu Wei, Yuzhe Zhang
Summary: Nanoparticle LiTi2(PO4)3-xh was synthesized and LiTi2(PO4)(3)-7h showed excellent rate and electrochemical performance, making it a promising cathode for lithium-ion batteries.
CHEMICAL PHYSICS LETTERS
(2022)
Article
Chemistry, Physical
Xu Hou, Xiaokang Ju, Wenguang Zhao, Jun Wang, Xin He, Leilei Du, Bo Yan, Jinke Li, Elie Paillard, Jingyu Sun, Hai Lin, Martin Winter, Jie Li
Summary: The composite of Anatase TiO2 and LiTi2(PO4)(3) as the negative electrode material in high voltage aqueous lithium-ion batteries demonstrates low polarization and high interface stability, showing promising cycling performance.
JOURNAL OF POWER SOURCES
(2021)
Review
Materials Science, Ceramics
Wang Yutong, Zhang Feifan, Xu Naicai, Wang Chunxia, Cui Lishan, Huang Guoyong
Summary: Lithium-ion batteries, known for their high energy and power density, often use flammable and toxic organic electrolytes. To address this safety issue, lithium-ion batteries with aqueous electrolytes have drawn much attention. The selection of anodes is crucial for the development of aqueous lithium-ion batteries, with LiTi2(PO4)(3) being a promising material. This review focuses on the synthesis, modification, and research progress of LiTi2(PO4)(3), as well as prospects for its future development as an anode material for lithium-ion batteries.
JOURNAL OF INORGANIC MATERIALS
(2022)
Article
Materials Science, Multidisciplinary
Gurpreet Kaur, M. Dinachandra Singh, Seshadri Chandrasekara Sivasubramanian, Anshuman Dalvi
Summary: Ionic liquid dispersed Li+-Nasicon composites with significantly improved conductivity and good stability have been prepared and characterized. These composites show promise as electrolytes in lithium-ion batteries for low power devices.
MATERIALS RESEARCH BULLETIN
(2022)
Article
Electrochemistry
Xiao-Liang Zhou, Zheng-Guang Yan, Lin Ma, Wei-Qiang Xiao, Xiao-Dong Han
Summary: A simple morphogenetic route is developed for obtaining fabric-like free-standing lithium titanium phosphate (LTP). Commercial cotton textiles are used as templates, and after burning off the cellulosic component, well-crystallized lithium titanium phosphate pieces with high porosity are synthesized. The sample shows superior rate capability and cyclability in rechargeable lithium-ion batteries after coating with amorphous carbon. This method can be extended to other templates and titanium-based electrode materials.
JOURNAL OF THE ELECTROCHEMICAL SOCIETY
(2022)
Article
Chemistry, Physical
Yutong Wang, Feifan Zhang, Jian-An Chen, Xiaoming Zhang, Jiawei Wen, Chunxia Wang, Guoyong Huang
Summary: Carbon-coated LiTi2(PO4)3 (LTP-1) was synthesized using sol-gel and in-situ coating method with tannic acid as carbon source. Comparison was made with LTP-2 and LTP-3, synthesized using citric acid and lactic acid as carbon sources, respectively. LTP-1 exhibited high cyclic stability and rate performance as an anode in aqueous lithium-ion batteries, with an initial discharge capacity of 60.9 mAhmiddotg-1 at a rate of 10 C and a capacity retention rate of 72.8% after 1000 cycles. LTP-2 and LTP-3 showed lower initial specific discharge capacities and capacity retention rates under the same testing parameters. (c) 2023 Elsevier B.V. All rights reserved.
JOURNAL OF ALLOYS AND COMPOUNDS
(2023)
Article
Electrochemistry
A. S. Ulikhin, D. Novozhilov, V. R. Khusnutdinov, Yu E. Sinel'nikova, N. F. Uvarov
Summary: Heterogeneous doping of LiTi2(PO4)(3) with lithium perchlorate LiClO4 significantly increases the ionic conductivity and decreases the activation energy of the composite material.
RUSSIAN JOURNAL OF ELECTROCHEMISTRY
(2022)
Article
Materials Science, Multidisciplinary
Yinyi Luo, Xinyu Liu, Chengjiang Wen, Tianxiang Ning, Xingxing Jiang, Anxian Lu
Summary: This study investigates the influence of Ga3+ ion doping on the crystal structure, density, activation energy, and ionic conductivity of LTP electrolytes. The results show that the relative density, activation energy, and conductivity of LGTP electrolytes increase first and then decrease as Ga3+ doping increases, with the sample containing x = 0.5 exhibiting the highest ionic conductivity. These findings suggest that doping LTP ceramic electrolytes with Ga3+ can significantly improve conductivity.
APPLIED PHYSICS A-MATERIALS SCIENCE & PROCESSING
(2023)
Article
Chemistry, Physical
Ning Zhang, Ying Li, Yadan Luo, Zhen Yang, Jiayao Lu
Summary: The study investigated the effect of NASICON-type solid-state electrolyte on lithium-rich cathode material, with results showing that LTP coating on Li1.2Ni0.13Mn0.54Co0.13O2 did not improve electrochemical performance and may even have negative impacts, such as decreasing discharge voltage and increasing impedance. The non-uniform coating with multiple components observed in XRD, TEM, and SAED images suggests that the wet chemical method for LTP coating may be challenging and require careful execution.
Article
Materials Science, Multidisciplinary
Siddharth Sradhasagar, Sagar Mallick, Ashutosh Rath, Soobhankar Pati, Amritendu Roy
Summary: This study reports the effect of Fe3+ doping at the Ti4+ sites and secondary phases on the ionic conductivity of NASICON structured lithium titanium phosphate (LiTi2(PO4)3). Li1+xTi2-x-Fex(PO4)3 (x = 0.0, 0.1 and 0.2) was synthesized and the results showed that the ionic conductivity of the samples changed due to the alteration of ion conduction paths upon doping.
MATERIALS TODAY COMMUNICATIONS
(2023)
Article
Electrochemistry
Xiaowei Wang
Summary: In this study, a LiTi2(PO4)(3)/carbon composite was successfully synthesized using folic acid as a carbon source, with the composite containing 7.1% carbon (LTP-F-2) showing the best electrochemical performance and stability mechanism. This composite delivered higher discharge capacities at various rates compared to pristine LiTi2(PO4)(3), demonstrating its potential as an excellent alternative anode material for aqueous rechargeable lithium batteries.
INTERNATIONAL JOURNAL OF ELECTROCHEMICAL SCIENCE
(2021)
Article
Energy & Fuels
Rajasekhara Reddy Gutturu, T. V. M. Sreekanth, Ramaraghavulu Rajavaram, Deva Prasad Raju Borelli, G. R. Dillip, P. C. Nagajyothi, J. Shim
INTERNATIONAL JOURNAL OF ENERGY RESEARCH
(2020)
Article
Materials Science, Multidisciplinary
Gowra Raghupathy Dillip, Patnamsetty Chidanandha Nagajyothi, Rajavaram Ramaraghavulu, Arghya Narayan Banerjee, Bandugula Venkata Reddy, Sang Woo Joo
MATERIALS CHEMISTRY AND PHYSICS
(2020)
Article
Chemistry, Multidisciplinary
Rajavaram Ramaraghavulu, V. Koteswara Rao, K. C. Devarayapalli, Kisoo Yoo, P. C. Nagajyothi, Jaesool Shim
Summary: This study successfully synthesized silver nanoparticles using Pseudocydonia sinensis fruit extract, decorated them on commercial materials, and characterized them through various methods. The results showed that the decorated silver nanoparticles exhibited different catalytic activities during the degradation of methyl orange.
RESEARCH ON CHEMICAL INTERMEDIATES
(2021)
Article
Chemistry, Inorganic & Nuclear
T. V. M. Sreekanth, R. Ramaraghavulu, K. Yoo, J. Kim
Summary: A SnO2 quantum dots @ FePO4 nanosheets nanocomposite (FP-Sn) was prepared without additional instruments and showed improved catalytic activity for the degradation of methylene blue (MB) in the presence of NaBH4. Approximately 92% of the MB was successfully decolorized within 6 min using FP-Sn.
JOURNAL OF CLUSTER SCIENCE
(2022)
Article
Materials Science, Multidisciplinary
Chandra Babu Ballipalli, Ramaraghavulu Rajavaram, V Naresh, Dayakar Thatikayala, Dohyun Kim, Dong Su Shin, Andrew P. Baker, Gui-Gen Wang, Jinsub Park
Summary: In this study, highly uniform petal-like Ba-3(PO4)(2) phosphors were successfully fabricated and optimized for efficient luminescence, making them a potential yellow phosphor material for use in white LEDs.
MATERIALS SCIENCE AND ENGINEERING B-ADVANCED FUNCTIONAL SOLID-STATE MATERIALS
(2021)
Article
Chemistry, Physical
P. C. Nagajyothi, R. Ramaraghavulu, K. Munirathnam, K. Yoo, Jaesool Shim
Summary: Mn3O4 NPs were synthesized via a hydrothermal method, exhibiting cubic shapes with good oxygen evolution and methanol oxidation activity in alkaline media, showing promise as an efficient material in energy applications.
INTERNATIONAL JOURNAL OF HYDROGEN ENERGY
(2021)
Article
Biochemistry & Molecular Biology
Rajesh Dagupati, Robert Klement, Ramaraghavulu Rajavaram, Jose J. Velazquez, Dusan Galusek
Summary: Transparent oxyfluoride glass-ceramics with embedded beta-Na-1.Y-5(1).F-5(6) crystals doped with Er3+ ions were fabricated, showing bright green up-conversion emission. Temperature-dependent visible UC behavior in Er-G and Er-GC samples was examined, with a maximum relative sensitivity of 1.1% K-1 at 298 K.
Article
Chemistry, Multidisciplinary
Patnamsetty Chidanandha Nagajyothi, Kisoo Yoo, Rajavaram Ramaraghavulu, Jaesool Shim
Summary: In this study, manganese tungstate/graphene oxide composites were prepared by hydrothermal synthesis, showing excellent electrocatalytic properties for energy storage and conversion applications. This research provides a new approach for synthesizing inexpensive nanocomposites as promising electrocatalysts.
Review
Biochemistry & Molecular Biology
Surya V. Prabhakar V. Vattikuti, Jie Zeng, Rajavaram Ramaraghavulu, Jaesool Shim, Alain Mauger, Christian M. Julien
Summary: This article mainly introduces the tremendous development of bismuth-based nanostructures (BBNs) in the fields of photocatalysis and electro-catalysis. The methods of optimizing surface engineering to improve charge transport and the separation of available photocatalysts are discussed, and different strategies for enhancing photocatalytic activity are summarized. The surface plasmon resonance effect for photocatalytic enhancement is examined, and the photocatalytic mechanism of bismuth-based photocatalysts is discussed in detail, considering different semiconductor junctions.
INTERNATIONAL JOURNAL OF MOLECULAR SCIENCES
(2023)
Article
Materials Science, Ceramics
R. Ramaraghavulu, K. Pavani, P. C. Nagajyothi, Jaesool Shim
Summary: Potassium zinc borophosphate (KZnBP) glasses doped with Dy3+, Eu3+, and Dy3+/Eu3+ ions were prepared using the melt-quench technique, and their photoluminescence characteristics were studied. The energy transfer process between Dy3+ and Eu3+ was investigated, showing that there was a significant decrease in Dy3+ peak intensity and a simultaneous enhancement in Eu3+ peak intensity when excited with Dy3+ excitations. The dipole-dipole interaction was found to be responsible for the energy transfer from Dy3+ to Eu3+. The co-doped glasses exhibited white light emission, indicating their potential application in warm white LEDs.
JOURNAL OF THE AMERICAN CERAMIC SOCIETY
(2023)
Article
Materials Science, Multidisciplinary
P. C. Nagajyothi, R. Ramaraghavulu, Jaesool Shim
Summary: Sheet-type CuCo2O4/CuO electrocatalysts were synthesized via microwave irradiation at different temperatures (150, 175, and 200 degrees C), denoted as CCO-150, CCO-175, and CCO-200. The morphology, structure, and electrochemical properties of the synthesized electrocatalysts were investigated. CCO-200 showed higher OER activity compared to CCO-150 and CCO-175, with an overpotential of 510 mV at 50 mA cm-2 and a Tafel slope of 96 mV dec-1. All electrocatalysts exhibited excellent stability for up to 14,000 s.
Article
Materials Science, Multidisciplinary
P. C. Nagajyothi, R. Ramaraghavulu, K. Pavani, Jaesool Shim
Summary: A CeO2 catalyst was obtained through annealing of a Ce-based metal-organic framework (Ce-MOF), and characterized using various analytical techniques. The CeO2 catalyst showed a 90% reduction of MB/RhB in 6 and 8 minutes, respectively, compared to Ce-MOF, when NaBH4 was present.
Article
Chemistry, Physical
Surya. V. Prabhakar Vattikuti, Nguyen To Hoai, Jie Zeng, Rajavaram Ramaraghavulu, Nam Nguyen Dang, Jaesool Shim, Christian M. M. Julien
Summary: Bimetal-organic frameworks (BMOFs) have gained attention as electrode materials for energy storage devices due to their precise control of porous structure, surface area, and pore volume. In this study, a NiCo-MOF (NCMF) with a three-dimensional hierarchical nanorod-like structure was prepared using a solvo-hydrothermal method. The NCMF exhibited excellent electroactivity when used as the positive electrode in a hybrid pouch-type asymmetric supercapacitor device (HPASD). The assembled HPASD showed high specific capacitance, energy density, and cycling stability, indicating the potential of the NCMF as a high-energy-density electrode material for supercapacitors.
Article
Chemistry, Inorganic & Nuclear
Patnamsetty Chidanandha Nagajyothi, Krishnapuram Pavani, Rajavaram Ramaraghavulu, Jaesool Shim
Summary: The oxygen evolution reaction (OER) is a key step in water splitting. However, it is slow due to the four-electron transfer process. Therefore, the development of efficient and affordable electrocatalysts for the OER is important. Metal oxides derived from metal-organic frameworks (MOFs) are highly effective electrocatalysts for the OER. In this study, Ce-MOF-derived CeO2/graphene oxide (GO) composites were prepared and characterized using various techniques. The CeO2-GO-3 composite exhibited superior OER activity and stability compared to other electrocatalysts, making it a promising candidate for the OER.
Article
Chemistry, Multidisciplinary
Ramaraghavulu Rajavaram, S. V. Prabhakar Vattikuti, Jaesool Shim, Xinghui Liu, Nguyen To Hoai, Nam Nguyen Dang
Summary: Sunlight-powered photocatalysts made from CeO2 nanosized particles and g-C3N4 nanostructures were prepared and their structural properties and photocatalytic performance were analyzed. The g-C3N4/CeO2 nanostructures showed significantly enhanced photoactivity for CV dye degradation and notable PEC performance under simulated sunlight.
NANOSCALE ADVANCES
(2023)
