Article
Chemistry, Inorganic & Nuclear
Yuyuan Xiao, Rong Sun, Jiefeng Liang, Yuhui Fang, Zheng Liu, Shangda Jiang, Bingwu Wang, Song Gao, Wenliang Huang
Summary: The synthesized rare earth metal complexes exhibit complex electronic structures and magnetic behaviors. The structural and magnetic data are consistent with density functional theory calculations, revealing the antiferromagnetic coupling between the radical anions.
INORGANIC CHEMISTRY FRONTIERS
(2021)
Article
Chemistry, Applied
Eddy Dib, Jerome Rey, Aurelie Vicente, Shrikant Kunjir, Hussein Awala, Sarah Komaty, Ayoub Daouli, Tomas Bucko, Hussein El Siblani, Robert Bedard, Jeffery Bricker, Jean-Pierre Gilson, Michael Badawi, Svetlana Mintova
Summary: The accessibility of sodalite cages in nanosized zeolite X can be controlled by varying the nature and location of extra-framework cations. Nuclear magnetic resonance experiments and DFT simulations reveal the connectivity between sodalite and super cages, as well as the influence of extra-framework cations on the diffusion pathway.
MICROPOROUS AND MESOPOROUS MATERIALS
(2022)
Article
Chemistry, Inorganic & Nuclear
Haiyan An, Huiyun Luo, Tieqi Xu, Shenzhen Chang, Yanhong Chen, Qingshan Zhu, Yaohui Huang, Huaqiao Tan, Yang-Guang Li
Summary: Four hybrid compounds based on polyoxometalate anions and tris(bipyridine)ruthenium cations were prepared and characterized, showing excellent photocatalytic activity and selectivity for the oxidation of amines to imines. The compounds exhibit strong visible-light-harvesting abilities and extensive hydrogen bond interactions between polyoxometalate anions and tris(bipyridine)ruthenium cations.
INORGANIC CHEMISTRY
(2022)
Article
Electrochemistry
Tesfaye Hailemariam Barkae, Fan Yuan, Tadesse Haile Fereja, Shimeles Addisu Kitte, Xiangui Ma, Wei Zhang, Guobao Xu
Summary: Developing a simple, sensitive, and cost-effective method for detecting thiosemicarbazide and Hg2+ is of great significance. The developed Ru(bpy)(3)(2+)/TSC ECL system showed high detection recovery rates when applied to lake water samples.
ELECTROCHIMICA ACTA
(2021)
Article
Chemistry, Analytical
Tesfaye Hailemariam Barkae, Abdallah M. Zeid, Guobao Xu
Summary: This study developed a sensitive, low-cost, and rapid electrogenerated chemiluminescence system for the detection of AZA. The practical utility of the sensor was demonstrated in real samples of lake water and wastewater, showing high recoveries.
Article
Chemistry, Physical
Ying Peng, Zhi-Gang Wang, Bao-Ping Qi, Cui Liu, Bo Tang, Zhi-Ling Zhang, Shu-Lin Liu, Dai-Wen Pang
Summary: In this study, the surface carboxyl groups on carbon nanodots were found to be the co-reactant sites for the electrochemiluminescence (ECL) of the Ru(bpy)32+ system. Increasing the carboxyl-group content on carbon nanodots significantly enhanced the ECL intensity. This finding provides new insights for the rational design of ECL systems with carbon nanodots as co-reactants.
JOURNAL OF COLLOID AND INTERFACE SCIENCE
(2024)
Article
Chemistry, Physical
Junyoung Cha, Taeho Lee, Yu-Jin Lee, Hyangsoo Jeong, Young Suk Jo, Yongmin Kim, Suk Woo Nam, Jonghee Han, Ki Bong Lee, Chang Won Yoon, Hyuntae Sohn
Summary: The study investigated the preparation method and catalytic performance of nanometer-sized Ru particles deposited on four different alkali-exchanged zeolite Y supports. The results showed that Ru/Rb-Y exhibited the highest catalytic activity, mainly attributed to the high basicity of Rb-Y zeolite and the confined dispersion of Ru particles, which led to an open pore structure of the zeolite.
APPLIED CATALYSIS B-ENVIRONMENTAL
(2021)
Article
Thermodynamics
Grace Neilsen, Matthew S. Dickson, Peter F. Rosen, Xin Guo, Alexandra Navrotsky, Brian F. Woodfield
Summary: Synthetic zeolites are widely used in industry for their porous frameworks, flexibility, and specific interactions with guest molecules. This study conducted heat capacity measurements on three partially dehydrated zeolite RHO samples to investigate their energetics. Different standard entropy and enthalpy values were observed at 298.15 K for these samples, indicating variations in their thermodynamic properties.
JOURNAL OF CHEMICAL THERMODYNAMICS
(2022)
Article
Chemistry, Applied
Rajesh Bera, Chandan Adhikary
Summary: The zeolite immobilized hybrid catalyst prepared by immobilizing Cu(II)-bipyridine complex onto NaY zeolite exhibited excellent catalytic potency and product selectivity, showing true heterogeneous nature after several cycles of use.
JOURNAL OF POROUS MATERIALS
(2021)
Article
Engineering, Chemical
Zeyu Tao, Yuanmeng Tian, Sze Yiu Ou, Qinfen Gu, Jin Shang
Summary: Direct air capture of CO2 (DAC) is a promising carbon-negative technology, and the key lies in effective sorbent materials. The research found that a large charge-to-size ratio of cations is critical to the high DAC capacity of LTA zeolites, while an excessively large ratio has a detrimental effect. Ca-LTA with an appropriate ratio exhibited the highest DAC capacity with fast kinetics and good reusability. These results provide valuable insights for the design of zeolite-based physisorbents for DAC.
Article
Energy & Fuels
Kimiya Nematolahi, Ehsan Salehi, Abtin Ebadi Amooghin, Hamidreza Sanaeepur
Summary: In this study, Ultem and NaX zeolite were used to fabricate mixed matrix membranes for CO2 separation. The optimized MMM exhibited a CO2/N-2 selectivity of 34 and a 45% increase in CO2 permeability compared to the pristine membrane. These improvements were attributed to the surface diffusion mechanism of zeolite X and the reversible reaction between Ni2+ ions and CO2 molecules.
GREENHOUSE GASES-SCIENCE AND TECHNOLOGY
(2022)
Review
Chemistry, Physical
Emily Kerr, Egan H. Doeven, Paul S. Francis
Summary: This article examines important recent developments in the understanding and application of the classic and widely used electrochemiluminescence system based on tris(2,2'-bipyridine)ruthenium(II) ([Ru(bpy)(3)](2+)) luminophore and tri-n-propylamine (TPrA) co-reactant.
CURRENT OPINION IN ELECTROCHEMISTRY
(2022)
Article
Chemistry, Analytical
Jenna Hannonen, Anniina Kiesila, Ulriika Mattinen, Petri M. Pihko, Pekka Peljo
Summary: Tris(2,2'-bipyridine) Fe(II) complexes with different substituents were electrochemically studied in aqueous solutions. The substituent effect on the formal potential of the complexes was investigated. The stability of the compounds in the oxidized form was evaluated by voltammetry. The compounds were found to be unsuitable for flow battery applications, but the knowledge obtained can contribute to the development of more stable complexes.
JOURNAL OF ELECTROANALYTICAL CHEMISTRY
(2023)
Article
Chemistry, Inorganic & Nuclear
Jacob M. Mayers, Randy W. Larsen
Summary: Metal organic frameworks (MOFs) are well known for their large surface areas and high porosity, making them ideal for gas storage, drug delivery, and light harvesting. This study compares the photophysics of ruthenium (II) tris-(2,2'-bipyridine) encapsulated in different zirconium oxide MOFs, showing that even with a larger cavity, significant confinement is imposed.
INORGANICA CHIMICA ACTA
(2021)
Article
Chemistry, Analytical
Shimeles Addisu Kitte, Fuad Abduro Bushira, Tesfaye Refera Soreta
Summary: Efficient coreactants play a crucial role in electrochemiluminescence sensing. In this study, 1-ethyl-3-(3-dimethylaminopropyl)carbodiimide was demonstrated as an effective coreactant for the tris(2,2'-bipyridine)ruthenium(II) electrochemiluminescence system, allowing accurate detection of H2O2 concentration and showing satisfactory recoveries in real samples.
MICROCHEMICAL JOURNAL
(2022)