Article
Chemistry, Analytical
Fatemeh Moradi, Zahra Shariatinia, Nasser Safari, Ezeddin Mohajerani
Summary: In this study, nanoparticles of LaFeO3 were modified on mesoscopic TiO2 to form LaFeO3:TiO2 nanocomposites, which were used as electron transport layers (ETLs) in perovskite solar cells (PCSs). Adding an optimal amount of LaFeO3 to the ETL improved the performance of the perovskite solar cells, resulting in higher power conversion efficiency. The PSC with the LaFeO3-modified ETL also showed excellent stability, maintaining more than 70.1% of its initial efficiency after 800 hours of testing.
JOURNAL OF ELECTROANALYTICAL CHEMISTRY
(2022)
Review
Green & Sustainable Science & Technology
Peng Wang, Jian Hu, Tingyi Liu, Guilin Han, Wen-min Ma, Jun Li
Summary: Ball milling is an effective method for overcoming the passivation problem of zero-valent iron (ZVI) and improving its decontamination efficiency. This study provides a comprehensive summary of the intersection between ball milling and ZVI materials, highlighting the changes in ZVI structure and enhanced activity. The study also emphasizes the need to optimize process parameters for specific composite systems and evaluates the applications of ball-milled ZVI in pollution remediation.
JOURNAL OF CLEANER PRODUCTION
(2023)
Article
Agricultural Engineering
Jiayi Tang, Yongfei Ma, Song Cui, Yongzhen Ding, Jinyao Zhu, Xi Chen, Zulin Zhang
Summary: This study presents an innovative technique to convert sugarcane bagasse into a new biochar adsorbent for the removal of ciprofloxacin (CIP) from water. The biochar adsorbent exhibited excellent environmental safety and outstanding adsorption capacity, and it was also reusable. The study provides a promising solution for the rational placement of biowaste and the high-efficiency synthesis of biochar for antibiotic removal.
BIORESOURCE TECHNOLOGY
(2022)
Article
Chemistry, Multidisciplinary
Florin Andrei, Valentin Ion, Ruxandra Birjega, Maria Dinescu, Nicoleta Enea, Dan Pantelica, Maria Diana Mihai, Valentin-Adrian Maraloiu, Valentin Serban Teodorescu, Ioan-Cezar Marcu, Nicu Doinel Scarisoreanu
Summary: The study investigates the formation of self-assembled nanodomains in LaFeO3 epitaxial thin films and their effects on the photoelectrochemical properties, revealing detrimental effects on PEC functional properties when nanopyramids-like domains appear after a thickness threshold. The research provides insights into the structural and stoichiometric features that influence the photocurrent density and onset potential exhibited by LFO photoelectrodes. Moreover, the highest photocurrent density values were observed for the thinnest LFO/Nb:SrTiO3 sample, showing excellent stability over time and unbiased hydrogen evolution from water.
Article
Chemistry, Physical
Rong Sun, Laihong Shen, Shuang Wang, Hongcun Bai
Summary: In this study, CO oxidation behaviors with different oxygen species were investigated using Ca-substituted lanthanum ferrite as the oxygen carrier. The results showed that lattice oxygen was the active species and Ca doping promoted lattice oxygen migration and CO oxidation.
APPLIED CATALYSIS B-ENVIRONMENTAL
(2022)
Article
Chemistry, Physical
Yuan Feng, Hanyu Jin, Shuai Wang
Summary: The difference in oxygen vacancy formation energy and oxygen migration barrier between the surface and the bulk in LaFeO3 perovskite was investigated via DFT. The effect of Sr doping was considered. The results showed that Sr doping enhanced the covalency of the interaction between Fe and O, leading to a lower oxygen vacancy formation energy and a smaller oxygen migration barrier.
PHYSICAL CHEMISTRY CHEMICAL PHYSICS
(2023)
Article
Engineering, Environmental
Heng Zhang, Renjing Zhang, Zechao Wu, Fashan Yang, Mengfan Luo, Gang Yao, Zhimin Ao, Bo Lai
Summary: In this study, cobalt-doped perovskite material was synthesized and used for peroxymonosulfate (PMS) activation to remove atrazine from water. The performance of PMS activation was significantly improved by doping cobalt. The primary active species in the LFCO/PMS system were determined to be (OH)-O-center dot and SO4 center dot-. The activation pathway of LFCO was revealed and a synergistic effect between cobalt and iron was identified. The potential application of the LFCO/PMS system and the transformation pathway of atrazine were also discussed.
CHEMICAL ENGINEERING JOURNAL
(2023)
Article
Chemistry, Physical
Phatcharin Phumuen, Pisist Kumnorkaew, Pornjuk Srepusharawoot, Pawinee Klangtakai, Samuk Pimanpang, Vittaya Amornkitbamrung
Summary: A perovskite LaNiO3 powder was prepared using sol-gel method, with particle size of 0.28 µm and rhombohedral crystal structure. Ball milling treatment improved specific capacitances, with a second phase of La(OH)3 detected in DI water milled samples. XPS results suggest charge processes involving OH- ions and Ni2+/Ni3+ oxidation/reduction during charge and discharge. EIS showed lower resistances in DI water milled LaNiO3 powders compared to as-prepared powders.
SURFACES AND INTERFACES
(2021)
Article
Engineering, Chemical
N. B. Pradeep, M. M. Rajath Hegde, Shashanka Rajendrachari, A. O. Surendranathan
Summary: Nanostructured TiMgSr alloy with small crystallite size and low lattice strain was synthesized using ball milling, cold compaction, and microwave sintering. The alloy exhibited suitable densification and elastic modulus for biomedical applications.
Article
Chemistry, Physical
Yutong Xiao, Ziqun Wang, Longfeng Li, Quan Gu, Man Xu, Li Zhu, Xianliang Fu
Summary: Transition metal phosphides (TMPs) are promising alternatives to expensive cocatalysts. In this study, the structure-activity relationships between Ni2P and g-C3N4 were explored, revealing that Ni2P can substantially enhance the photocatalytic activity of g-C3N4 for hydrogen evolution reaction (HER). Loading 3% Ni2P on g-C3N4 through ball milling resulted in a 9-fold increase in HER performance compared to pristine g-C3N4. Ni2P played a dual role as trapping sites for photoinduced electrons and reactive centers for hydrogen evolution due to its high work function and low HER overpotential. This work provides insights into the design of efficient TMPs for enhanced HER through simple synthesis methods.
INTERNATIONAL JOURNAL OF HYDROGEN ENERGY
(2023)
Article
Materials Science, Ceramics
Linhao Li, Brant Walkley, Ian M. Reaney, Derek C. Sinclair
Summary: Low levels of impurities can significantly impact the electrical properties of metal oxides, influencing defect chemistry and conduction mechanisms. High purity reagents are crucial in studying ferrite-based perovskites to achieve accurate results.
JOURNAL OF THE EUROPEAN CERAMIC SOCIETY
(2021)
Article
Chemistry, Physical
Sebastian Dudek, Dorota Kolodynska
Summary: In this study, the commercially available iron oxide sorbent was modified with lanthanum(III) ions for enhanced removal of arsenate(V) from water. Various analyses were conducted to characterize the modified ion exchanger and investigate the adsorption process. The results showed improved sorption properties of the modified sorbent, with a 55% increase in maximum sorption capacity and higher removal efficiency at various initial As(V) concentrations.
JOURNAL OF MOLECULAR LIQUIDS
(2022)
Article
Agricultural Engineering
Jiayi Tang, Yongfei Ma, Chenyu Zeng, Lie Yang, Song Cui, Suli Zhi, Fengxia Yang, Yongzhen Ding, Keqiang Zhang, Zulin Zhang
Summary: This study proposes a novel adsorbent (BMFA-BC) by using a facile ball milling technology to tailor Fe-Al oxides-laden bagasse biochar. The increased exposure of Fe-Al oxides and enhanced functional groups by ball milling result in a high adsorption capacity of BMFA-BC for aqueous tetracycline at 298 K, reaching up to 116.6 mg g-1. The adsorption performance is influenced by temperature.
BIORESOURCE TECHNOLOGY
(2023)
Article
Chemistry, Physical
Hee Jun Kim, Sang Heon Kim, Sun-Woo Kim, Jin-Kyeom Kim, Chentian Cao, Yongchul Kim, Ungsoo Kim, Geunsik Lee, Jae-Young Choi, Hyung-Suk Oh, Hyun-Cheol Song, Won Jun Choi, Hyesung Park, Jeong Min Baik
Summary: This study presents a simple and cost-effective method to achieve the crystallization of LaFeO3 perovskite at low temperatures (300-500 degrees C), resulting in an excellent oxygen evolution reaction (OER) catalyst with inherent catalytic surface. The synthesis involved the formation of a cyanogel-peroxo-complex as a metastable molecular precursor, which was obtained via ligand exchange using potassium cyanide solution. The electrocatalysts based on LaFeO3 nanoparticles exhibited remarkable OER performance, surpassing the commercialized IrOx/C catalysts in terms of overpotential and Tafel slope under alkaline conditions. The catalyst's high stability was confirmed by the insignificant potential change during a 50-hour long-term stability test.
Article
Materials Science, Ceramics
Yanqiong Zhang, Jiajia Lu, Weiwei Huang, Lei Gao, Fan Zhang, Mamdouh Omran, Guo Chen
Summary: This study investigated the influence of La2O3-Y2O3 co-doped ZrO2 on its phase transformation behavior, phase stability, and microstructure. It was found that replacing part of Y2O3 with La2O3 increases the tetragonal and cubic phase of zirconia powder, enhancing the fracture strength of the subsequent synthesized materials. Additionally, the stability of zirconia stabilized with La2O3 doping is significantly improved compared to that of Y2O3 alone. The optimal doping amount was found to be 2.8Y0.2La, which exhibited the best phase composition, stability, particle size distribution, and dispersion degree.
CERAMICS INTERNATIONAL
(2023)
Article
Chemistry, Inorganic & Nuclear
James D. Aldridge, Jordan M. Womick, Kimberly A. Rosmus, Ashley Weiland, Jennifer A. Aitken, Deborah A. Polvani
JOURNAL OF SOLID STATE CHEMISTRY
(2017)
Article
Chemistry, Inorganic & Nuclear
Nicholas A. Moroz, Christopher Bauer, Logan Williams, Alan Olvera, Joseph Casamento, Alexander A. Page, Trevor P. Bailey, Ashley Weiland, Stanislav S. Stoyko, Emmanouil Kioupakis, Ctirad Uher, Jennifer A. Aitken, Pierre F. P. Poudeu
INORGANIC CHEMISTRY
(2018)
Article
Chemistry, Physical
P. Grima-Gallardo, O. Izarra, L. Mendez, S. Torres, M. Quintero, H. Cabrera, E. Perez-Cappe, I. Zumeta-Dube, A. Rodriguez, J. A. Aitken, D. P. Rai
JOURNAL OF ALLOYS AND COMPOUNDS
(2018)
Article
Chemistry, Physical
Jian-Han Zhang, Daniel J. Clark, Jacilynn A. Brant, Kimberly A. Rosmus, Pedro Grima, Jonathan W. Lekse, Joon Jang, Jennifer A. Aitken
CHEMISTRY OF MATERIALS
(2020)
Article
Chemistry, Physical
Jian-Han Zhang, Stanislav S. Stoyko, Andrew J. Craig, Pedro Grima, Joshua W. Kotchey, Joon Jang, Jennifer A. Aitken
CHEMISTRY OF MATERIALS
(2020)
Article
Crystallography
Mustafa Bookwala, Ashwini Gumireddy, Jennifer A. Aitken, Peter L. D. Wildfong
Summary: Terfenadine, a compound with H-1-receptor blocking activity, has been used as an antihistamine drug and a model for studying material properties. The X-ray crystal structure of terfenadine was solved in this study, revealing it to be the most thermodynamically stable monotropic polymorph.
JOURNAL OF CHEMICAL CRYSTALLOGRAPHY
(2022)
Article
Chemistry, Multidisciplinary
Gerzon E. Delgado, Sonia Duran, Jennifer A. Aitken, Marcos Munoz, Pedro Grima-Gallardo
Summary: The new alloy (CuGa)(0.52)TaSe2 was synthesized using melt and annealing technique, and its structure was refined using X-ray powder diffraction data. The compound crystallizes in the hexagonal space group with partial ordering of Cu, Ga, Ta, and Se elements.
ORBITAL-THE ELECTRONIC JOURNAL OF CHEMISTRY
(2021)
Article
Chemistry, Physical
Srikanth Balijapelly, Andrew J. Craig, Jeong Bin Cho, Joon Jang, Kartik Ghosh, Jennifer A. Aitken, Aleksandr Chernatynskiy, Amitava Choudhury
Summary: A new polar quaternary chalcogenide Na8Mn2(Ge2Se6)(2) has been synthesized and shows promising optical and electromagnetic properties, indicating potential applications in optics and electromagnetics.
JOURNAL OF ALLOYS AND COMPOUNDS
(2022)
Article
Chemistry, Inorganic & Nuclear
Ari T. Barton, Mingli Liang, Andrew J. Craig, Weiguo Zhang, Stanislav S. Stoyko, Anne N. Radzanowski, Delenn Fingerlow, P. Shiv Halasyamani, Joseph H. MacNeil, Jennifer A. Aitken
Summary: The new compounds Li2Mg2Si2S6 and Li2Mg2Ge2S6 with a new structure type featuring staggered, ethane-like units have been successfully prepared. These compounds show large optical bandgaps and exhibit second harmonic generation responses. The electronic band structures indicate that these compounds are indirect bandgap semiconductors.
ZEITSCHRIFT FUR ANORGANISCHE UND ALLGEMEINE CHEMIE
(2022)
Article
Chemistry, Multidisciplinary
Andrew J. Craig, Seung Han Shin, Jeong Bin Cho, Srikanth Balijapelly, Jordan C. Kelly, Stanislav S. Stoyko, Amitava Choudhury, Joon Jang, Jennifer A. Aitken
Summary: A novel quaternary thiogermanate Li4CdGe2S7 with good nonlinear optical properties was discovered, making it a potential candidate for infrared nonlinear optical material.
ACTA CRYSTALLOGRAPHICA SECTION C-STRUCTURAL CHEMISTRY
(2022)
Article
Chemistry, Multidisciplinary
Megan M. Treece, Jordan C. Kelly, Kate E. Rosello, Andrew J. Craig, Jennifer A. Aitken
Summary: This study focuses on the calculation and analysis of the global instability index (G) for some diamond-like materials. Two compounds with high G values were experimentally verified, and their structures were studied using powder X-ray diffraction, optical diffuse reflectance UV/Vis/NIR spectroscopy, and single-crystal X-ray diffraction. By reassessing the G values, it was found that these structures have reasonable strain and high stability. The study highlights the importance of using accurate data collected on modern instrumentation to calculate bond valence sums and G values.
ACTA CRYSTALLOGRAPHICA SECTION C-STRUCTURAL CHEMISTRY
(2023)
Article
Chemistry, Inorganic & Nuclear
Jennifer R. Glenn, Jeong Bin Cho, Yiqun Wang, Andrew J. Craig, Jian-Han Zhang, Marvene Cribbs, Stanislav S. Stoyko, Kate E. Rosello, Christopher Barton, Allyson Bonnoni, Pedro Grima-Gallardo, Joseph H. MacNeil, James M. Rondinelli, Joon Jang, Jennifer A. Aitken
Summary: Two new diamond-like semiconductors, Cu4MnGe2S7 and Cu2MnGeS4, were prepared and characterized in terms of their unique structures and optical properties. These compounds exhibit different second-order nonlinear optical susceptibilities, which can be explained by electronic structure calculations.
DALTON TRANSACTIONS
(2021)
Article
Multidisciplinary Sciences
Balamurugan Karuppannan, Jacqueline L. Sturgeon, Kristin L. Bunker, Karen E. Harris, Ravi Ganesan, Jennifer A. Aitken
SN APPLIED SCIENCES
(2020)
Article
Crystallography
Andrew J. Craig, Stanislav S. Stoyko, Allyson Bonnoni, Jennifer A. Aitken
ACTA CRYSTALLOGRAPHICA SECTION E-CRYSTALLOGRAPHIC COMMUNICATIONS
(2020)
Correction
Chemistry, Inorganic & Nuclear
Ashley Weiland, Jian-Han Zhang, Daniel J. Clark, Jacilynn A. Brant, Charles W. Sinagra, Yong Soo Kim, Joon I. Jang, Jennifer A. Aitken
DALTON TRANSACTIONS
(2017)