Article
Chemistry, Multidisciplinary
Meng-Xuan Gu, Xiao-Qin Zheng, Song-Song Peng, Shi-Chao Qi, Xiao-Qin Liu, Lin-Bing Sun
Summary: We provide a simple method for synthesizing Fe single-atom catalysts (SACs) by utilizing the confined space in template-occupied SBA-15. The Fe precursor is easily introduced into the confined space to form a Fe-O-Si structure through solid phase grinding and calcination. The synthesized Fe SACs exhibit significantly higher activity for phenol hydroxylation reaction than the comparison samples without confined space.
ACS SUSTAINABLE CHEMISTRY & ENGINEERING
(2023)
Article
Nanoscience & Nanotechnology
Alma D. Salazar-Aguilar, Asuncion Quintanilla, Pablo Lopez, Carla Martinez, Sofia M. Vega-Diaz, Jose A. Casas, Pilar Miranzo, M. Isabel Osendi, Manuel Belmonte
Summary: The study focuses on the synthesis of dihydroxybenzenes (DHBZ) from the hydroxylation of phenol, using 3D printed Fe/gamma-Al2O3 monoliths as catalysts. The unique printing strategy allows the production of catalytic monoliths with improved DHBZ synthesis performance, demonstrating higher reaction efficiencies compared to conventional processes.
ACS APPLIED MATERIALS & INTERFACES
(2022)
Article
Chemistry, Physical
Samar Yusuf, Mohammad Dinari, Ahmad Moheb
Summary: The one-step liquid phase hydroxylation of phenol to catechol and hydroquinone was carried out over vanadate-intercalated Cu/Mg/Al-layered double hydroxides (LDHs) using hydrogen peroxide as an oxidant and water as a solvent. The synthesized catalyst exhibited a lamellar structure and plate-like shape particles with good vanadate intercalation, leading to an excellent conversion of 50.22% and a yield of 28.75% with the best selectivity of 57.26% under specific reaction conditions.
Article
Chemistry, Physical
Subhashree Mishra, Rajaram Bal, R. K. Dey
Summary: The study presents a new copper-supported activated red mud as a catalyst for oxidative conversion of benzene to phenol. The one-pot hydroxylation reaction at 75 degrees Celsius demonstrated high conversion of benzene to phenol with good selectivity. The proposed mechanism highlights the importance of cooperative effect of residual and embedded metal ions in solid catalyst matrix for efficient conversion and selectivity.
MOLECULAR CATALYSIS
(2021)
Article
Nanoscience & Nanotechnology
Alma D. Salazar-Aguilar, Asuncion Quintanilla, Pablo Lopez, Carla Martinez, Sofia M. Vega-Diaz, Jose A. Casas, Pilar Miranzo, M. Isabel Osendi, Manuel Belmonte
Summary: The 3D printing of Fe/gamma-Al2O3 monoliths with Fe-MOF-based inks allows for the production of catalytic structures with highly dispersed Fe clusters, nanoclusters, and nanoparticles. By conducting the phenol hydroxylation reaction in a flow reactor using these printed scaffolds, a DHBZ selectivity of 100% and a yield of 32% were achieved, showcasing improved synthesis efficiency compared to conventional methods.
ACS APPLIED MATERIALS & INTERFACES
(2022)
Article
Chemistry, Physical
Tao Chen, Tingting Ye, Jie Zhu, Guoqing Li, Zhe Chen, Menglin Xie, Yu Zhou, Jun Wang
Summary: In this study, an efficient carbon catalyst was prepared through hydrothermal carbonization of biomass-derived glucose, showing superior activity in benzene oxidation reaction and achieving a high phenol yield. The fast reaction was attributed to the formation of small-sized primary carbon particles with abundant surface oxygen species enhancing adsorption.
APPLIED CATALYSIS A-GENERAL
(2021)
Article
Chemistry, Organic
Jing-Jing Ai, Bei-Bei Liu, Jian Li, Fei Wang, Cheng-Mi Huang, Weidong Rao, Shun-Yi Wang
Summary: An iron-sulfur complex formed by mixing FeCl3 with S-3(center dot-) from K2S is developed for selective aerobic oxidation of terminal alkenes. The reaction can be carried out under an atmosphere of O-2, and can proceed on a gram scale, expanding the application of S-3(center dot-) in organic synthesis. This study also encourages further exploration of the application of Fe-S catalysts in organic reactions.
Review
Chemistry, Physical
Nafiseh Rahmani, Ahmad Amiri, Ghodsi Mohammadi Ziarani, Alireza Badiei
Summary: Mesoporous transition metal-based catalysts act as efficient catalytic supports and catalysts, providing high selectivity and controllability in the catalysis process. This emerging area offers researchers the opportunity to introduce novel heterogeneous catalysts.
MOLECULAR CATALYSIS
(2021)
Article
Engineering, Chemical
Mehran Ghiaci, Shohreh Farahmand, Kianoosh Masoomi, Maliheh Safaiee, Jalal S. Razavizadeh
Summary: In this study, Graphene Vanadic Acid (GVA) was introduced as a novel catalyst for efficient hydroxylation of benzene to phenol using hydrogen peroxide at ambient conditions. GVA, a new carbon compound, exhibited high reactivity and reusability, resulting in a remarkable yield of phenol as the sole product.
ADVANCED POWDER TECHNOLOGY
(2021)
Review
Chemistry, Inorganic & Nuclear
Yitao Zhao, Hongmei Cao, Lei Tao, Zhiyong Qiao, Changming Ding
Summary: Single-atom catalysts (SACs) are a new type of catalyst that exhibit 100% metal dispersion and maximized metal atom utilization, making them highly promising for catalytic reactions such as benzene oxidation to phenol. Extensive efforts have been made to develop efficient SACs for benzene oxidation, resulting in successful fabrication of various metal SACs. This comprehensive review summarizes the recent research progress in SACs for boosting benzene oxidation, focusing on the roles of metal atoms and supports, and highlighting the applications of advanced SACs and their structure-activity correlation.
DALTON TRANSACTIONS
(2023)
Article
Chemistry, Inorganic & Nuclear
Mazlina Musa, Daniel M. Dawson, Russell E. Morris, E. Sharon Ashbrook
Summary: In this study, FeAPO-34 with a chabazite structure was successfully synthesized, and the presence of iron in the material was confirmed by solid-state NMR spectroscopy.
INORGANIC CHEMISTRY
(2022)
Article
Engineering, Environmental
Zhenyu Yang, Xuechang Ren, Suying Ding, Renhua Chen, Miao Tian
Summary: In this study, WS2 with different 1T phase content was prepared and its co-catalytic performance in the Fe3+/PMS system was investigated. It was found that WS2 had the best co-catalytic effect when the WCl6/TAA ratio was 1:12 and the temperature was 200 °C. The presence of the 1T phase in WS2 was confirmed by XRD, Raman, TEM, and XPS analysis. The WS2/Fe3+/PMS system efficiently degraded phenol solution and generated various active radicals. The 1T-WS2 also showed good reusability.
JOURNAL OF ENVIRONMENTAL CHEMICAL ENGINEERING
(2023)
Article
Engineering, Environmental
Gonzalo Vega, Asuncion Quintanilla, Manuel Belmonte, Jose A. Casas
Summary: The study investigated the chemical kinetics of phenol hydroxylation to produce dihydroxybenzenes using a 3D printed monolithic reactor. The experiments showed that the hydroxylation reaction mechanism involved three elementary reactions, leading to the formation of dihydroxybenzenes with a selectivity above 99% at 80 degrees Celsius in Fe/SiC honeycomb monolithic reactors.
CHEMICAL ENGINEERING JOURNAL
(2022)
Article
Chemistry, Physical
Aniruddha Singha, Kushanava Bhaduri, Anil Chandra Kothari, Biswajit Chowdhury
Summary: The synthesis of a mesoporous Fe2O3-TiO2 mix-oxide catalyst and its catalytic performance in the hydroxylation of benzene were investigated in this study. The catalyst was characterized using various techniques to determine its structural properties and surface acidity. It was observed that the surface acidity of the catalyst influenced the selectivity towards phenol. Under optimized conditions, the 5% Fe-TiO2 catalyst exhibited high phenol yield and selectivity.
MOLECULAR CATALYSIS
(2022)
Article
Materials Science, Multidisciplinary
Yu-Cai Wu, Xi -Chun Zhong, Yuan-Xin Li, Xuan Huang, Jiao-Hong Huang, Cui-Lan Liu, Zhong-Wu Liu, Wan-Qi Qiu, Ming -Long Zhong, Zhen-Chen Zhong, R. V. Ramanujan
Summary: LaFe11.8Si1.2/16wt%La65Co35 samples were prepared by spark plasma sintering (SPS) and subsequent annealing. The La65Co35 binder increased the 1:13 phase content, and the alpha-Fe phase formed and disappeared during annealing. The sample annealed for 0.5 h showed a distinct core-shell structure, desirable table-like (-Delta S-M) -T curve, and higher RC value. The diffusion of Co was hindered by the growth of La5Si3 phase. Samples annealed for 24 h achieved larger (-Delta S-M)(max) and (sigma(bc))(max) values. The method combining SPS and diffusion annealing is promising for preparing La-Fe-Si based magnetocaloric composites with good properties.
MATERIALS RESEARCH BULLETIN
(2023)
Article
Chemistry, Physical
Hong Liu, Jingchai Meng, Jiang Zhang
CATALYSIS SCIENCE & TECHNOLOGY
(2017)
Article
Chemistry, Physical
Yun Su, Dan Ao, Hong Liu, Yong Wang
JOURNAL OF MATERIALS CHEMISTRY A
(2017)
Article
Chemistry, Physical
Hong Liu, Zhe Zhang, Jingchai Meng, Jiang Zhang
MOLECULAR CATALYSIS
(2017)
Article
Nanoscience & Nanotechnology
Jingchai Meng, Qian Chen, Jiaqian Lu, Hong Liu
ACS APPLIED MATERIALS & INTERFACES
(2019)
Article
Chemistry, Physical
Qian Chen, Jiang Zhang, Jiaqian Lu, Hong Liu
INTERNATIONAL JOURNAL OF HYDROGEN ENERGY
(2019)
Article
Chemistry, Physical
Jiaqian Lu, Jiang Zhang, Qian Chen, Hong Liu
JOURNAL OF PHOTOCHEMISTRY AND PHOTOBIOLOGY A-CHEMISTRY
(2019)
Article
Chemistry, Physical
Lin Cheng, Qian Chen, Juan Li, Hong Liu
APPLIED CATALYSIS B-ENVIRONMENTAL
(2020)
Article
Engineering, Environmental
Qian Chen, Juan Li, Lin Cheng, Hong Liu
CHEMICAL ENGINEERING JOURNAL
(2020)
Article
Chemistry, Physical
Jiaqian Lu, Lin Cheng, Juan Li, Hong Liu
JOURNAL OF ALLOYS AND COMPOUNDS
(2020)
Article
Chemistry, Physical
Lin Cheng, Yuncheng Tang, Min Xie, Yitong Sun, Hong Liu
Summary: The study designed 2D/2D composites by using layered Ti3C2 as a noble-metal-free cocatalyst with ultrathin UNiMOF nanosheets, which showed higher photocatalytic degradation activity for methylene blue under UV-vis light irradiation and exhibited excellent stability. Through promoting charge transfer and accelerating the separation of photoexcited electrons and holes, the composites have shown promising potential for applications.
JOURNAL OF ALLOYS AND COMPOUNDS
(2021)
Article
Chemistry, Multidisciplinary
Fei-Hu Du, Ling Zhang, Yun-Cheng Tang, Shang-Qi Li, Yu Huang, Le Dong, Qianqian Li, Hong Liu, Dong Wang, Yong Wang
Summary: In this study, a-Si hollow nanospheres were prepared using the sodiothermic reduction method, and an a-Si-based composite with yolk-shell structure was designed and fabricated for high-performance SIBs anode material. The obtained composite exhibited high initial discharge capacity, superior long-term stability, and excellent rate capability.
ADVANCED MATERIALS INTERFACES
(2022)
Article
Chemistry, Multidisciplinary
Yi Zhang, Yun-Cheng Tang, Xin-Tao Li, Hong Liu, Yong Wang, Yi Xu, Fei-Hu Du
Summary: Amorphous silicon (a-Si) is considered as one of the most promising materials for the anode of sodium-ion batteries (SIBs) due to its satisfactory theoretical capacity, moderate discharge potential, and abundant reserves. However, its further development is hindered by the slow Na+ diffusion kinetics, poor electrical conductivity, and rupture-prone structures. In this study, a composite (a-Si@rGO) consisting of porous amorphous silicon hollow nanoboxes (a-Si HNBs) and reduced graphene oxide (rGO) is prepared. The as-synthesized composite anode exhibits excellent electrochemical properties attributed to the synergistic action of the porous hollow nanostructure of a-Si and the rGO coating.
Article
Chemistry, Physical
Huifang Feng, Yitong Sun, Qiaozhen Xu, Hong Liu
Summary: Novel NH2-MIL-101(Fe)@Bi2MoO6 S-scheme heterojunctions were synthesized, which exhibited enhanced activity for CO2 photoreduction by facilitating the separation of electron-hole pairs at the interface.
APPLIED CATALYSIS A-GENERAL
(2023)
Article
Chemistry, Multidisciplinary
Jiaqian Lu, Zhe Zhang, Lin Cheng, Hong Liu
NEW JOURNAL OF CHEMISTRY
(2020)
Article
Chemistry, Physical
Yun Su, Zhe Zhang, Hong Liu, Yong Wang
APPLIED CATALYSIS B-ENVIRONMENTAL
(2017)
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)
