Article
Chemistry, Physical
Min Zhang, Aihui Cao, Heng Zhang, Chao Yang
Summary: This study shows that the catalytic activity of nitro compounds can be significantly improved by synthesizing defective CuNiFeO nanorods. The CuNiFeO NRs exhibit excellent performance in the reduction of 4-nitrophenol.
JOURNAL OF COLLOID AND INTERFACE SCIENCE
(2022)
Article
Chemistry, Inorganic & Nuclear
Jin Goo Lee
Summary: Metal segregation technique has been used to prepare well-designed catalysts with homogeneous and strong embedded metal nanoparticles. However, issues like alkaline-earth metal segregation and carbon formation need to be addressed for stable greenhouse gas conversion catalysts.
INORGANIC CHEMISTRY
(2023)
Article
Energy & Fuels
Mahsa Vosoughi, Hafez Maghsoudi, Saman Gharedaghi
Summary: The performance of ETS-10 and its various ion-exchanged forms in CO2 and CH4 adsorption was studied, revealing that adsorbents containing monovalent cations exhibited higher CO2/CH4 selectivity, while those exchanged by divalent cations were easier to regenerate.
JOURNAL OF NATURAL GAS SCIENCE AND ENGINEERING
(2021)
Article
Chemistry, Multidisciplinary
Munirathinam Elavarasan, Willie Yang, Sethupathi Velmurugan, Jyy-Ning Chen, Yi-Ting Chang, Thomas Chung-Kuang Yang, Toshiyuki Yokoi
Summary: There is a pressing need for technologies to address global climate change, and the research group aims to develop a novel catalyst that can convert CO2 into a carbon resource. Experimental results show that the m-TiO2/α-Fe2O3 heterojunction has a higher CO2 adsorption capacity.
JOURNAL OF CO2 UTILIZATION
(2022)
Article
Chemistry, Inorganic & Nuclear
Bryce G. Mullens, Maria K. Nicholas, Frederick P. Marlton, Helen E. A. Brand, Qinfen Gu, Helen E. Maynard-Casely, Brendan J. Kennedy
Summary: Synchrotron X-ray and neutron powder diffraction methods were used to determine the structures of double scheelite compounds NaA(BO4)2. The distribution of Na and A-type cations was found to be random, regardless of the presence of 6s2 lone pairs and differences in oxidation states and ionic radii. The NaA(BO4)2 series showed linear trends in lattice parameters and polyhedra volume, except for A = Bi3+.
JOURNAL OF SOLID STATE CHEMISTRY
(2023)
Article
Biochemical Research Methods
Winyoo Sangthong, Jakkapan Sirijaraensre
Summary: In this study, density functional theory calculations were used to investigate the cycloaddition reaction of ethylene oxide (EO) with CO2 in the absence of a co-catalyst. The influence of exchanged metals on the adsorption of EO was found to be significant. The proposed reaction mechanism involves the concerted mechanism, with the metals initiating the EO ring opening and the formation of two new C-O bonds between the adsorbed EO and CO2. The Cu-FAU catalyst exhibited the lowest activation energy, which can be attributed to moderate adsorption of EO and larger electron transfer at the transition state.
JOURNAL OF MOLECULAR GRAPHICS & MODELLING
(2022)
Article
Materials Science, Textiles
Dan Sheng, Bo Deng, Yunli Wang, Ling Liu, Xin Chen, Honghui Xia, Genyang Cao, Weilin Xu
Summary: The aggregation behaviors of Basic Red 46 in different solvents, electric conductivity and surface zeta potential of dye aggregates, dyeing mechanism and adsorption isotherms of MPIA, adsorption kinetics onto MPIA, and washing and rubbing fastness of dyed MPIA were investigated and analyzed in this study.
TEXTILE RESEARCH JOURNAL
(2021)
Article
Engineering, Environmental
Tomoyo Goto, Yoshifumi Kondo, Sung Hun Cho, Satoshi Seino, Tohru Sekino
Summary: Developing environmental purification techniques for water resources is crucial for realizing a sustainable society. This study investigated the sorption properties of Co2+, Ni2+, Zn2+, and Sr2+ on titania nanotubes (TNTs) and found that the sorption behavior and state of intercalated cations varied depending on the ion. The crystallographic properties of TNTs, ionic size, chemical property of the target cation, and reactivity with carbonic acid are important factors in the design of water purification systems.
CHEMICAL ENGINEERING JOURNAL ADVANCES
(2022)
Article
Energy & Fuels
Rajan Singh, Komal Tripathi, Kamal Kishore Pant
Summary: The study focuses on CeO2, ZrO2 and ZnO supported Cu catalysts, with Cu/ZnO showing the highest CO2 conversion rate and Cu/CeO2 demonstrating over 90% methanol selectivity at lower temperatures. The high methanol selectivity of Cu/CeO2 catalyst may be attributed to its excess surface oxygen vacancies and higher basic site density.
Article
Chemistry, Physical
Wanqin Li, Li Jin, Fei Gao, Haiqin Wan, Yu Pu, Xiaoqian Wei, Chong Chen, Weixin Zou, Chengzhang Zhu, Lin Dong
Summary: The P-CeO2/g-C3N4 photocatalyst coupling phosphate modified octahedral CeO2 {111} surface with gC(3)N(4) showed superior CO2 reduction activity due to efficient charge transfer and increased oxygen-containing functional groups on the surface. The interfacial electrons donated from g-C3N4 to CeO2 through the PO43- bridge led to Z-scheme formation, facilitating rapid photo-generated charge transfer and CO2 activation. This synergistic interaction of charge-transfer channel and abundant active sites makes P-CeO2/g-C3N4 a potential photocatalyst for CO2 reduction.
APPLIED CATALYSIS B-ENVIRONMENTAL
(2021)
Article
Materials Science, Ceramics
B. I. Yanny Marliana, M. N. Muhammad Syazwan, M. N. Ahmad-Fauzi, W. Balestri, Y. Reinwald
Summary: This study investigated the influence of simultaneous ternary divalent cation substitutions into porous CHA scaffolds, finding that this method successfully enhanced the compressive strength of the scaffolds and promoted better cell attachment and activities.
JOURNAL OF THE AUSTRALIAN CERAMIC SOCIETY
(2021)
Article
Chemistry, Physical
Tengfei Zhang, Weiwei Wang, Fangna Gu, Wenqing Xu, Jianling Zhang, Zhenxing Li, Tingyu Zhu, Guangwen Xu, Ziyi Zhong, Fabing Su
Summary: This study reports a strategy to enhance the low-temperature CO2 methanation by tuning the surface properties of the CeO2 support. The introduction of La species generates more basic sites and oxygen vacancies, leading to improved catalytic performance.
APPLIED CATALYSIS B-ENVIRONMENTAL
(2022)
Article
Chemistry, Multidisciplinary
Zhou Ying, He Peinan, Feng Haisong, Zhang Xin
Summary: The current research on diatomic site M-N-C catalysts mainly focuses on regulating the atom type of the active center, while underestimating the influence of the coordination environment and distribution of active sites on catalytic performance. In this study, the CO2RR reaction mechanism of nine types of NiFe-N-C catalysts with different coordination environments was systematically investigated using density functional theory. The results showed that the coordination number and distance between diatomic sites have a significant impact on the stability and catalytic activity of M-N-C catalysts. This study provides theoretical support for the precise regulation of active sites and rational design of CO2RR catalysts.
CHEMICAL JOURNAL OF CHINESE UNIVERSITIES-CHINESE
(2022)
Article
Green & Sustainable Science & Technology
Zeyu Tao, Yuanmeng Tian, Aamir Hanif, Vienna Chan, Qinfen Gu, Jin Shang
Summary: This study explores the effect of different metal cations on the selective adsorption of CO2 from flue gas and biogas, and suggests that metal cations with a small charge-to-size ratio are beneficial for efficient carbon capture. The findings provide valuable insights for designing small-pore zeolites as adsorbents.
CARBON CAPTURE SCIENCE & TECHNOLOGY
(2023)
Article
Chemistry, Inorganic & Nuclear
Nilanjan Seal, Athulya S. Palakkal, Renjith S. Pillai, Subhadip Neogi
Summary: A multifaceted metal-organic framework (MOF) with contrasting functionalities has been developed for capturing CO2 under high-temperature and moisture-tolerant conditions, and for detecting organoarsenic compounds in water using ultra-sensitive fluorosensing.
INORGANIC CHEMISTRY
(2023)
Article
Chemistry, Applied
Lulu Wan, Gan Ye, Yuying Chang, Zhaohan Yang, Guangming Shi, Qiuli Zhang, Jin Wang
Summary: This study developed an efficient approach to upgrade the oxidative desulfurization (ODS) performance of Zr-MOFs with proton stimulation. Experimental results showed that the introduction of protons can significantly improve the ODS efficiency. This work provides a facile and efficient strategy for enhancing the ODS performance of pristine MOFs.
MICROPOROUS AND MESOPOROUS MATERIALS
(2024)
Article
Chemistry, Applied
Qiqi Lu, Xiu-Zhi Wei, Qi Zhang, Xinghua Zhang, Lungang Chen, Jianguo Liu, Yubao Chen, Longlong Ma
Summary: The application of Pd-M bimetallic clusters in the selective hydrogenation reaction was investigated, and the Pd0.6Ni@S-1 catalyst was found to exhibit high selectivity in the conversion of phenylacetylene to styrene. The confinement effect of zeolite inhibited over-hydrogenation and improved the stability of the catalysts. Furthermore, the solvent properties also influenced the product distribution.
MICROPOROUS AND MESOPOROUS MATERIALS
(2024)
Review
Chemistry, Applied
Bo Li, Lumin Hong, Changdi Jing, Xianyang Yue, Huabo Huang, Qianqian Jiang, Jianguo Tang
Summary: MOF materials with adjustable pore structure and polymetallic sites have been explored as electrocatalysts for OER. Bimetallic materials show higher electrocatalytic activity than monometallic materials, while carbon-coated and doped MOF catalysts exhibit stable and good OER activity. The synergistic interaction between polymetallic active sites effectively improves the intrinsic activity of MOF on OER.
MICROPOROUS AND MESOPOROUS MATERIALS
(2024)
Article
Chemistry, Applied
Shichun Gu, Ruyi Wang, Junxiong Zhang, Hairong Dong, Liping Deng, Xue Wang, Yapeng He
Summary: In this study, monodispersed hollow mesoporous organosilica nanospheres with controlled core cavity and mesoporous shell were successfully synthesized. These hollow nanospheres showed a high adsorption capacity for Pb2+ in water solution and exhibited acceptable recycling and stability.
MICROPOROUS AND MESOPOROUS MATERIALS
(2024)
Article
Chemistry, Applied
Lucie Havelkova, Bogdana Bashta, Michaela Vankova, Jiri Zednik, Jiri Brus, Jan Svoboda, Alice Vagenknechtova, Jan Sedlacek
Summary: An atom-economic one-step chain-growth coordination homopolymerization providing high yields of functionalized hyper-cross-linked polyacetylenes with a permanent micro/mesoporous texture and a BET area of up to 1062 m2/g is reported. The homopolymerization is highly compatible with the heteroatom groups of the monomers and allows the preparation of well-defined porous networks with a wide spectrum of univalent groups.
MICROPOROUS AND MESOPOROUS MATERIALS
(2024)
Article
Chemistry, Applied
Shirui Pang, Yuxin Liu, Zhe Zhang, Yuxin Li, Chunguang Li, Zhan Shi, Shouhua Feng
Summary: This study focuses on using a functional separator to suppress the shuttle effect of soluble lithium polysulfides in Li-S batteries. It is found that the functionalized sulfonic acid group not only accelerates the conduction of lithium ions, but also repels polysulfide anions through electrostatic interactions. The performance of the batteries is significantly improved with the use of this functionalized separator.
MICROPOROUS AND MESOPOROUS MATERIALS
(2024)
Article
Chemistry, Applied
Pingping Li, Lei Han, Donghun Kim, Kemal Celebi
Summary: This study presents a fast synthetic strategy for the preparation of high-quality platelike MFI crystals using a thin-wall tubular reactor. The strategy is efficient, time-saving, and can be optimized, making it applicable to the preparation and optimization of other important materials.
MICROPOROUS AND MESOPOROUS MATERIALS
(2024)
Article
Chemistry, Applied
Haitao Yin, Wei Wang, Yuxin Li, Hu Wen, Shuang Chen, Nanzhe Jiang
Summary: This study presents a template-free and solid-state-like crystallisation method for the synthesis of ZSM-5 zeolite, which can be scaled-up in production. Mechanical mixing of starting material components improves the dispersion of materials, leading to ZSM-5 zeolite with high crystallinity and size uniformity.
MICROPOROUS AND MESOPOROUS MATERIALS
(2024)
Article
Chemistry, Applied
Congli Li, Jiang Wang, Zhenfei Wang, Jinxiang Dong, Qi Shi
Summary: This study investigates the evolution and autoreduction behavior of Cu species in CuCl/NaY adsorbent during vacuum thermal activation. It is found that Cu species migrate from supercages to the nearby plane of the six-membered ring connecting the supercage and sod cage during vacuum activation. At 150 degrees C, vacuum autoreduction occurs, resulting in the formation of Cu+Cl- species. The results provide reference for the preparation of pi-complex adsorbents.
MICROPOROUS AND MESOPOROUS MATERIALS
(2024)
Article
Chemistry, Applied
Irena Khatrin, Iman Abdullah, Alan J. Mccue, Yuni K. Krisnandi
Summary: Hierarchical porous system with two types of mesopores provides a solution to the diffusion limitation in conventional zeolites. Cobalt oxide impregnated hierarchical ZSM-5 zeolite samples with intra- and inter-crystalline mesopores were synthesized using two different strategies. The physicochemical properties of the modified catalysts were analyzed, revealing distinct features given by the two mesoporous configurations. Catalytic activity analysis showed that Co-oxide/ZSM-5 with inter-crystalline mesopores exhibited higher activity in methane partial oxidation reaction compared to Co-oxide/ZSM-5 with intra-crystalline mesopores.
MICROPOROUS AND MESOPOROUS MATERIALS
(2024)
Article
Chemistry, Applied
Nataliia Reinders, Martin Durovic, Pavla Honcova, Zaneta Dohnalova, Jana Luxova, Stanislav Slang, Jhonatan Rodriguez-Pereira, Petra S. Sulcova
Summary: This study presents a new method for preparing a microporous Ni2P/C catalyst with high catalytic activity. The redox reaction and carbon matrix formation during high-temperature treatment contribute to the stability and activity of the catalyst. Experimental and analytical results suggest that the microporous structure of the composite plays a crucial role in its catalytic performance. These findings are important for practical applications of efficient hydrogen production by water electrolysis.
MICROPOROUS AND MESOPOROUS MATERIALS
(2024)
Article
Chemistry, Applied
Ana Raquel Bertao, Viktoriya Ivasiv, Cristina Almeida-Aguiar, Patricia R. Correia, Antonio M. Fonseca, Manuel Banobre-Lopez, Fatima Baltazar, Isabel C. Neves
Summary: This study developed a zeolite-based delivery system (ZDS) using silver and 5-Fluorouracil as antimicrobial and antineoplastic agents. The ZDS was characterized and its antimicrobial properties were investigated, showing better antibacterial effectiveness for the ZDS containing both silver and 5-FU.
MICROPOROUS AND MESOPOROUS MATERIALS
(2024)
Article
Chemistry, Applied
Naonobu Katada, Nobuki Ozawa, Etsushi Tsuji, Keigo Kanehara, Akiho Otsuka, Taiga Sakamoto, Kirari Umezawa, Hitoshi Matsubara, Satoshi Suganuma, Momoji Kubo
Summary: First principles calculations were used to investigate the pathway for methylation of benzene with methane catalyzed by MFI type zeolite-supported Co species. The strong adsorption of benzene on Co is found to lower the activation energy for methane dissociation and promote the formation of toluene precursor. The activation energy of methane dissociation is also affected by the Al-Al distance.
MICROPOROUS AND MESOPOROUS MATERIALS
(2024)
Article
Chemistry, Applied
Yuan Liu, An T. Ta, Kyoung Chul Park, Shenyang Hu, Natalia B. Shustova, Simon R. Phillpot
Summary: We use density functional theory to investigate the interactions of cerium, americium, and curium cations with crown ethers. Our results demonstrate that crown ethers can capture cerium, americium, and curium ions, and modifying the crown ether structure by substituting nitrogen atoms for oxygen atoms significantly increases their binding energies with radionuclides.
MICROPOROUS AND MESOPOROUS MATERIALS
(2024)
Article
Chemistry, Applied
Zhengwu Peng, Shixing Wang, Yihui Wu, Xiang Liu, Hongliang Liu, Dekun Zhang, Likang Fu
Summary: An efficient adsorbent for recovery of germanium was prepared and characterized in this study. The adsorption behavior of Ge(IV) on the adsorbent was analyzed, and the results showed that it follows pseudo-secondary kinetic model and Langmuir isotherm model. The adsorbent exhibited good anionic anti-interference ability and can still maintain high adsorption efficiency after repeated adsorption.
MICROPOROUS AND MESOPOROUS MATERIALS
(2024)