Article
Chemistry, Applied
Jiahao Li, Lingyao Wang, Yuxin Chen, Zonglin Gu, Tao Jiang, Binquan Luan, Rajamani Krishna, Yuanbin Zhang
Summary: A series of water stable fluorinated anion pillared metal-organic frameworks (MOFs) were reported, which can efficiently capture and separate xenon from krypton with high selectivity and adsorption capacity, making them suitable for the separation of these gases in industry.
MICROPOROUS AND MESOPOROUS MATERIALS
(2023)
Article
Chemistry, Physical
Lingshan Gong, Ying Liu, Junyu Ren, Abdullah M. Al-Enizi, Ayman Nafady, Yingxiang Ye, Zongbi Bao, Shengqian Ma
Summary: This study demonstrates that the cationic metal-organic framework, FJU-55, shows highly efficient performance in separating xenon/krypton mixtures. FJU-55 possesses uniform three-dimensional interconnection channels and electro-positive features, resulting in excellent selectivity and adsorption capacity for xenon.
Article
Nanoscience & Nanotechnology
Lingshan Gong, Yingxiang Ye, Ying Liu, Yunbin Li, Zongbi Bao, Shengchang Xiang, Zhangjing Zhang, Banglin Chen
Summary: In this study, a novel ultramicroporous hydrogen-bonded organic framework (HOF-40) constructed from a cyano-based organic building unit was reported. The results showed that HOF-40 exhibited superior separation performance for xenon/krypton mixtures, and the pore confinement effect and abundant accessible binding sites played a synergistic role in this challenging gas separation.
ACS APPLIED MATERIALS & INTERFACES
(2022)
Article
Chemistry, Physical
Lingshan Gong, Ying Liu, Junyu Ren, Abdullah M. Al-Enizi, Ayman Nafady, Yingxiang Ye, Zongbi Bao, Shengqian Ma
Summary: FJU-55, a cationic metal-organic framework, shows highly efficient Xe/Kr separation performance due to its uniform three-dimensional interconnection channels and electro-positive features. It has good Xe adsorption capacity, excellent Xe/Kr selectivity, and high adsorption heat. Molecular modeling studies reveal that the suitable pore size and abundant aromatic ligands in FJU-55 provide strong interactions, contributing to its superior gas separation performance.
Article
Chemistry, Physical
M. A. Torcivia, Steven M. E. Demers, Katherine L. Broadwater, Douglas B. Hunter
Summary: Separation of noble gases from air currently involves an energy-intensive and expensive cryogenic distillation process. This study explores the potential of Ag, Cu, and Pd functionalized zeolite chabazite as a more cost-effective alternative. The results show that Ag-functionalized chabazite exhibits the highest affinity for Xe, suggesting a mechanism involving the formation of Ag nanoclusters that alter the surface state of the chabazite and promote Xe adsorption.
JOURNAL OF PHYSICAL CHEMISTRY C
(2023)
Article
Engineering, Chemical
Zhenliang Zhu, Bei Li, Xing Liu, Peixin Zhang, Shixia Chen, Qiang Deng, Zheling Zeng, Jun Wang, Shuguang Deng
Summary: This study reported two metal-organic frameworks for the adsorptive separation of xenon and krypton, with Al-CDC showing higher adsorption capacity and selectivity due to its narrow pore aperture and pore structure. The results indicate potential industrial applications and stable reusability of these materials.
SEPARATION AND PURIFICATION TECHNOLOGY
(2021)
Article
Chemistry, Multidisciplinary
Yi Wei, Fengshi Qi, Yunhe Li, Xiubo Min, Qi Wang, Jiangliang Hu, Tianjun Sun
Summary: Capture and separation of xenon and krypton using hydrophobic zinc-based framework CALF-20 were investigated. CALF-20 exhibited excellent stability and high adsorption capacity and selectivity for xenon, making it suitable for Xe capture and Xe/Kr separation.
Article
Chemistry, Multidisciplinary
Hyojin Kim, Jong Hyeak Choe, Minjung Kang, Dong Won Kang, Hongryeol Yun, Jeongwon Youn, Weon-Gyu Lee, Jung-Hoon Lee, Chang Seop Hong
Summary: A Hofmann-type framework, Co(DABCO)[Ni(CN)(4)], has been developed for temperature-dependent switchable Xe/Kr separation, with high Kr/Xe and high Xe/Kr selectivity. This unique adsorption behavior is attributed to the temperature-dependent rotational configuration of the DABCO ligand.
Article
Multidisciplinary Sciences
Jia-Rui Wu, Gengxin Wu, Dongxia Li, Dihua Dai, Ying-Wei Yang
Summary: This study presents a new solid supramolecular adsorption material that can selectively separate 1-/2-bromoalkane isomers. The material exhibits amorphous and nonporous features and achieves high selectivity through a perfect match with 1-bromoalkanes.
Article
Engineering, Chemical
Zhizhong Lin, Lang Liu, Chao Liu, Xuechao Gao
Summary: The presence of volatile radionuclides I-2 and CH3I significantly affects the adsorption of Xe and Kr in nanoporous carbons, leading to competitive adsorption and exclusion of Xe and Kr. By introducing energy barriers to hinder diffusion, effective separation of CH3I and I-2 in carbon structures is achieved.
SEPARATION AND PURIFICATION TECHNOLOGY
(2021)
Article
Chemistry, Physical
Qian Wang, Zhu Meng, Juntao Li, Shuming Peng, Zhonghua Xiang
Summary: In this study, a stable covalent organic polymer, COP-14, is proposed as a promising material for Xe/Kr separation. COP-14 is able to successfully separate low concentration Xe and Kr, and has a higher retention volume compared to benchmark active carbon. The good performance of COP-14 is attributed to its rich nitrogen sites and suitable pore size for xenon molecules.
GREEN ENERGY & ENVIRONMENT
(2022)
Article
Engineering, Chemical
Boyu Liu, Zhaotong Yan, Qiang Liu, Youjin Gong, Xiaonan Wu, Zhenghao Mao, Shunshun Xiong, Sheng Hu
Summary: A mixed-linker strategy was used to create a confined aliphatic pore environment in high radioactive stable CAU-10 type Aluminum-based MOFs for efficient Xe capture and Xe/Kr separation at low concentration. By adjusting the ratio of the two linkers, the amount of immobilized aliphatic methyl groups could be precisely regulated to increase Xe binding affinity. The mixed-linker CAU-10-H-CH3-0.21-0.79 exhibited significantly enhanced Xe capture and separation performance compared to pristine CAU-10-H and fully methyl functionalized CAU-10-CH3 at dilute conditions.
SEPARATION AND PURIFICATION TECHNOLOGY
(2023)
Article
Chemistry, Multidisciplinary
Heng Liang, Kun Jiang, Tong-An Yan, Guang-Hui Chen
Summary: This study utilized machine learning and simulation techniques to screen MOFs with high Xe/Kr adsorption selectivity. The XGBoost model showed superior accuracy in predicting the adsorption and separation performance of MOFs, with structural descriptors playing a key role in influencing the prediction performance.
Article
Engineering, Environmental
Yue Wu, Wenxiang Zhang, Shuhui Chen, Yu Fu, Tong Yan, Wenbo Huang, Zhonghui Zhang, Bolun Yang, Heping Ma
Summary: Understanding the impact of local polar sites on porous adsorbent surfaces on adsorption performance is a challenge in molecular separation processes. This study investigated the adsorption of Xe and Kr on various metal ions on hyper cross-linked microporous organic polymers (HCP) and found that the adsorption strength and kinetics differed between the two gases. The optimized inductive energy and small-pore confinement effect of HCP-M significantly facilitated preferential selective adsorption of Xe over Kr.
CHEMICAL ENGINEERING JOURNAL
(2021)
Article
Materials Science, Multidisciplinary
David C. Fairchild, Mohammad Hossain, Jesus Cordova, T. Grant Glover, Fernando J. Uribe-Romo
Summary: The successful separation of xenon and krypton using metal-organic frameworks relies on the polarizability of functional groups for increased xenon uptake, while selectivity is more related to pore-steric effects.
ACS MATERIALS LETTERS
(2021)
Article
Nuclear Science & Technology
F-X Ouf, M. De Mendonca Andrade, H. Feuchter, S. Duval, C. Volkringer, T. Loiseau, F. Salm, P. Aine, L. Cantrel, A. Gil-Martin, F. Hurel, C. Lavalette, P. March, P. Nerisson, J. Nos, L. Bouilloux
Summary: Experimental results are reported on the airborne release of hazardous materials dissolved in organic solvents under fire conditions. The study focuses on stable and volatile fission products (cerium and ruthenium) that could be released as airborne particles during thermal degradation. The results show higher airborne release fractions for ruthenium compared to cerium, partly due to its volatility under these conditions.
NUCLEAR TECHNOLOGY
(2023)
Article
Chemistry, Physical
Carmen Ciotonea, Yaqian Wei, Adrian Ungureanu, Cezar Catrinescu, Olivier Gardol, Anne-Sophie Mamede, Franck Dumeignil, Sebastien Paul, Louise Jalowiecki-Duhamel, Sebastien Royer
Summary: This study investigates the use of nickel-based materials in the dry reforming of methane, an important process for producing hydrogen and syngas. Ni nanoparticles are formed from porous phyllosilicates under reducing conditions. The nanoparticles are highly dispersed even at high metal loadings, and show excellent resistance to sintering and carbon formation. The results demonstrate the potential of these materials for DRM applications.
Article
Engineering, Chemical
Mohamad Farhat, Philippe Nerisson, Laurent Cantrel, Maxime Chinaud, Olivier Vauquelin
Summary: Pool scrubbing has the potential to reduce the release of fission products, particularly aerosols, into the environment. However, there is a lack of systematic analysis on this phenomenon under different hydrodynamic conditions. Experimental work was conducted to investigate the effects of flow regimes and injection parameters on decontamination efficiency.
CHEMICAL ENGINEERING RESEARCH & DESIGN
(2023)
Article
Chemistry, Physical
Pedro H. M. Andrade, Myriam Moreau, Natacha Henry, Mohamed T. Bakouche, Sylvain Duval, Christophe Volkringer, Thierry Loiseau, Matthieu Hureau, Alain Moissette
Summary: The UiO family of metal-organic framework (MOF) materials is considered as one of the best choices for capturing gaseous iodine in nuclear power energy due to its properties like high specific surface areas, great iodine adsorption capacity, and good stability under nuclear accidents conditions. In this study, three UiO-67_NH2 samples with different metal contents were used to capture iodine, and Raman spectroscopy mappings were used to evaluate the different species. The results showed that UiO-67_NH2(Hf) compound had the best adsorption capacity, capturing 3428 g center dot mol(-1) of iodine, while UiO-67_NH2(Zr/Hf) and UiO-67_NH2(Zr) samples adsorbed 2835 g center dot mol(-1) and 1658 g center dot mol(-1) respectively. The spatial distribution of I-2 and I-3(-) along the crystals of UiO67_NH2 materials was correlated with the diffusion process of both species, improving the understanding of the mechanism responsible for iodine conversion and stabilization in UiO materials.
JOURNAL OF PHYSICAL CHEMISTRY C
(2023)
Article
Nanoscience & Nanotechnology
Pedro H. M. Andrade, Hania Ahouari, Christophe Volkringer, Thierry Loiseau, Herve Vezin, Matthieu Hureau, Alain Moissette
Summary: This study focuses on the capture and transformation of gaseous I-2 using three distinct terephthalate-based MOFs: MIL-125(Ti), MIL-125(Ti)_NH2, and CAU-1(Al)_NH2. The results show that MIL-125(Ti)_NH2 exhibits the highest capture capacity, which is attributed to its amino group affinity, smaller band gap energy, and efficient charge separation.
ACS APPLIED MATERIALS & INTERFACES
(2023)
Article
Chemistry, Multidisciplinary
Pauline Salaun, Alexandre Fadel, Mario Pelaez-Fernandez, Bahae-Eddine Mouloud, Jean-Francois Tahon, Christophe Volkringer, Ahmed Addad, Patrice Woisel, Gaelle Le Fer
Summary: This study reports the first example of hybrid COF-polymer particles, in which polymers are used to manipulate the growth of 2D COF nanostructures. The study investigates how the nature and molar mass of the polymer influence the shaping of hybrid particles, and different polymers result in different particle structures.
Article
Nanoscience & Nanotechnology
Nisrine Hammi, Mickaele Bonneau, Abdelkrim El Kadib, Susumu Kitagawa, Thierry Loiseau, Christophe Volkringer, Sebastien Royer, Jeremy Dhainaut
Summary: This study investigates the use of chitosan hydrogel microspheres as a template for growing an extended network of MOF-type HKUST-1. Different drying methods (supercritical CO2, freeze-drying, and vacuum drying) were used to generate three-dimensional polysaccharide nanofibrils embedding MOF nanoclusters. The resulting HKUST-1@Chitosan beads exhibit uniform and stable loadings of HKUST-1 and were used for the adsorption of CO2, CH4, Xe, and Kr. The maximum adsorption capacity of CO2 was found to be 1.98 mmol center dot g(-1) at 298 K and 1 bar, which is significantly higher than those of most MOF-based composite materials. Based on Henry's constants, thus-prepared HKUST-1@CS beads also exhibit fair selectivity for CO2 over CH4 and Xe over Kr, making them promising candidates for capture and separation applications.
ACS APPLIED MATERIALS & INTERFACES
(2023)
Article
Chemistry, Physical
Yin Xu, Jeremy Dhainaut, Jean-Philippe Dacquin, Jean-Francois Lamonier, Hui Zhang, Sebastien Royer
Summary: Defect engineering in catalytic materials, specifically modifying the A-site cationic vacancies, has been proven to be a feasible strategy for optimizing the catalytic performance of perovskite materials, as demonstrated by the enhanced formaldehyde oxidation activity of La1-xMnO3 materials.
APPLIED CATALYSIS B-ENVIRONMENT AND ENERGY
(2024)
Article
Materials Science, Multidisciplinary
Nisrine Hammi, Marta Kedzierska, Natalia Wronska, Nadia Katir, Jeremy Dhainaut, Sebastien Royer, Katarzyna Lisowska, Maria Bryszewska, Katarzyna Milowska, Abdelkrim El Kadib
Summary: Evaporation-induced co-assembly of boron nitride-exfoliated chitosan hydrogel provides micrometer-thick boron nitride-filled chitosan nanocomposite films. Increasing the loading of boron nitride improves the wettability, mechanical and thermal properties of the films, as well as the antibacterial properties, making them potential metal-free, antibacterial surface coating materials.
MATERIALS ADVANCES
(2023)
Article
Materials Science, Multidisciplinary
Nisrine Hammi, Marta Kedzierska, Natalia Wronska, Nadia Katir, Jeremy Dhainaut, Sebastien Royer, Katarzyna Lisowska, Maria Bryszewska, Katarzyna Milowska, Abdelkrim El Kadib
Summary: Evaporation-induced co-assembly of boron nitride-exfoliated chitosan hydrogel provides micrometer-thick boron nitride-filled chitosan nanocomposite films with improved mechanical and thermal properties, as well as enhanced antibacterial performance.
MATERIALS ADVANCES
(2023)
