Article
Crystallography
Daryn B. B. Borgekov, Artem L. L. Kozlovskiy, Rafael I. I. Shakirzyanov, Ainash T. T. Zhumazhanova, Maxim V. V. Zdorovets, Dmitriy I. I. Shlimas
Summary: The purpose of this study is to investigate the impact of lanthanum concentration on the phase formation, conductivity, and thermophysical properties of perovskite-like strontium ferrite ceramics. The study also explores the potential of obtaining two-phase composite ceramics. The results show that the increase in lanthanum concentration leads to significant changes in the dielectric permittivity and electrical resistivity of the ceramics.
Article
Materials Science, Multidisciplinary
Changjing Fu, Qiang Ma, Qibing Wu, Zaifang Yuan, Zhanqiang Wu, Jun He, Xuewei Li
Summary: In this study, a bifunctional oxygen electrocatalyst based on LSCF was designed and synthesized, which exhibited more surface oxygen vacancies and catalytically active sites for efficient oxygen reduction and evolution reactions. The integration of silver nanoparticles and graphene provided a fast pathway for electron transfer and mass diffusion. The flexible Zn-air battery with Ag/LSCF@graphene as the cathodic catalyst displayed high power density, large specific capacity, and superior charge/discharge stability.
MATERIALS CHEMISTRY AND PHYSICS
(2022)
Article
Chemistry, Physical
Xiao Chen, Senran Hao, Tengda Lu, Mian Li, Lina Han, Peng Dong, Jie Xiao, Xiaoyuan Zeng, Yingjie Zhang
Summary: Direct carbon solid oxide fuel cell (DC-SOFC) is a potential and prospective technology for converting chemical energy from coal fuels into electricity with high efficiency and environmental friendliness. In this study, vanadium-doped B-site-deficient La0.5Sr0.5FeO3-delta (LSFVx) perovskite materials were synthesized and developed as the anode of DC-SOFCs for brown coal utilization. The electrochemical performances of the vanadium-doped perovskites were greatly improved compared to pure LSF, indicating that vanadium doping can effectively expand the three-phase reaction boundaries of the cell and enhance catalytic activity.
JOURNAL OF ALLOYS AND COMPOUNDS
(2022)
Article
Chemistry, Physical
Dhruba J. Deka, Jaesung Kim, Seval Gunduz, Deeksha Jain, Yingjie Shi, Jeffrey T. Miller, Anne C. Co, Umit S. Ozkan
Summary: This study investigates the influence of A-site occupancy on carbon formation during CO2 electrolysis. Modulating A-site occupancy can affect electronic and ionic conductivities, as well as the surface chemistry of catalysts, thereby promoting carbon formation.
APPLIED CATALYSIS B-ENVIRONMENTAL
(2021)
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
Jun Yang, Lu Chen, Dongmin Cai, Hua Zhang, Jianxin Wang, Wanbing Guan
Summary: This study investigated the Sr segregation behavior in LSCF under compression to simulate the operating condition of LSCF electrode in an assembled SOC stack. The compression load was found to suppress the formation of SrO on the surface of LSCF, improving durability significantly. Furthermore, the type of materials (YSZ, GDC, and Pt) in contact with LSCF also influenced Sr segregation in LSCF, with compression inducing more SrO formation when in contact with YSZ compared to GDC and Pt.
INTERNATIONAL JOURNAL OF HYDROGEN ENERGY
(2021)
Article
Chemistry, Physical
Lei Gan, Hao Mei, Qingzhuo Lin, Jinlan Peng, Xinfei Ji, Rongbin Zhang, Xuewen Wang
Summary: A novel and efficient two-step crystal nucleation strategy was designed for constructing highly stable ternary ordered macroporous structures, exemplified by 3DOM NaTaO3 photocatalytic materials, showing significantly improved catalytic activity compared to nonporous counterparts. This construction enables faster reaction rates, participation of the bulk interior in photochemical reactions, and more options for later decoration.
JOURNAL OF COLLOID AND INTERFACE SCIENCE
(2022)
Article
Chemistry, Physical
S. Gabra, E. J. Marek, S. Poulston, G. Williams, J. S. Dennis
Summary: This study demonstrates that by controlling the structure of oxygen carriers based on strontium ferrite, the yield of chemical looping epoxidation reaction can be significantly increased. Samples with a specific ratio of SrFeO3 and RP phase mixed exhibit optimal performance, leading to a 4-fold increase in yield.
APPLIED CATALYSIS B-ENVIRONMENTAL
(2021)
Article
Chemistry, Inorganic & Nuclear
Ali Rastegarpanah, Yuxi Liu, Jiguang Deng, Lin Jing, Wenbo Pei, Xing Zhang, Zhiquan Hou, Mehran Rezaei, Hongxing Dai
Summary: The three-dimensionally ordered macroporous (3DOM) nickel-copper mixed oxides prepared using the dual-templating method exhibited high catalytic activity and stability for CO oxidation, attributed to their large surface area, high oxygen adspecies concentration, good low-temperature reducibility, and unique nanovoid 3DOM structure.
JOURNAL OF SOLID STATE CHEMISTRY
(2021)
Article
Engineering, Environmental
Rui Tang, Haoyue Sun, Zhenyu Zhang, Lu Liu, Fanning Meng, Xingmo Zhang, Wenjie Yang, Zhoutong Li, Zifeng Zhao, Rongkun Zheng, Jun Huang
Summary: A novel three-dimensionally ordered macroporous Au-CsPbBr3 (3DOM Au-CPB) composite has been demonstrated as an efficient visible-light-driven CO2 reduction photocatalyst. The rational design of the 3DOM structure and loading of Au nanoparticles enhance light-harvesting and carrier separation performance, resulting in significantly enhanced photocatalytic CO2 reduction activity.
CHEMICAL ENGINEERING JOURNAL
(2022)
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)
Article
Chemistry, Inorganic & Nuclear
Daryn B. Borgekov, Artem L. Kozlovskiy, Maxim V. Zdorovets, Dmitriy I. Shlimas
Summary: This research focuses on the properties of perovskite ceramics based on lanthanum-strontium ferrite and evaluates their resistance to long-term thermal aging. The novelty lies in the assessment of phase transformation dynamics and the effect of phase composition on resistance to high-temperature aging. The methods of scanning electron microscopy, energy dispersive analysis, and scanning electron microscopy were used to study the properties.
Article
Chemistry, Multidisciplinary
Ankush Kumar Tangra, Mohammed Benali Kanoun, Souraya Goumri-Said, Ahmed-Ali Kanoun, Kevin Musselman, Jaspinder Kaur, Gurmeet Singh Lotey
Summary: Perovskite solar cells using inorganic hole and electron transport layers (HTL and ETL) have been studied to enhance efficiency. The study found that the use of strontium ferrite (SrFe2O4) as HTL and zinc oxide (ZnO) as ETL improved power conversion efficiency. Numerical modeling showed the importance of optimizing layer thickness and defect density for better solar cell performance.
Article
Chemistry, Physical
Xunxun Li, Dongyun Chen, Najun Li, Qingfeng Xu, Hua Li, Jinghui He, Jianmei Lu
Summary: Perovskite oxides have been developed as promising catalysts for catalytic oxidation of volatile organic compounds due to their specific structures and low cost. In this study, nanotube perovskite oxides with high surface areas were prepared using a nanocasting array method. Precious metal palladium was loaded on the surface to enhance catalytic performance, showing good stability and efficient degradation of organic compounds at low temperatures.
JOURNAL OF ALLOYS AND COMPOUNDS
(2021)
Article
Chemistry, Physical
Oluchi Nkwachukwu, Charles Muzenda, Babatope O. Ojo, Busisiwe N. Zwane, Babatunde A. Koiki, Benjamin O. Orimolade, Duduzile Nkosi, Nonhlangabezo Mabuba, Omotayo A. Arotiba
Summary: A perovskite-based photoelectrochemical system was developed for the degradation of organic pollutants in wastewater. La3+-doped BFO photoanodes showed enhanced performance, with the best electrode exhibiting a three times higher current response than pure BFO. The improvements in electrode performance were attributed to the synergistic effect of applied bias potential and the introduction of La3+ into the BFO matrix.
Article
Chemistry, Applied
Xing Zhang, Yuxi Liu, Jiguang Deng, Lin Jing, Xiaohui Yu, Zhuo Han, Hongxing Dai
Summary: Transition metal oxides (MOx)-doped titania solid solution catalysts were prepared and characterized for the oxidation of 1,2-dichloroethane. Among them, 10CrOx-TiO2 exhibited the highest catalytic activity and resistance to chlorine poisoning, attributed to strong acidity, redox ability, high adsorbed oxygen species concentration, and strong interaction between TiO2 and CrOx.
Review
Environmental Sciences
Meng-Fei Han, Xu-Rui Hu, Yong-Chao Wang, Zhen Tong, Can Wang, Zhuo-Wei Cheng, Ke Feng, Miao-Miao Qu, Jian-Meng Chen, Ji-Guang Deng, Hsing-Cheng Hsi
Summary: Continuous emissions of VOCs from industrial processes pose serious environmental and health threats. Photodegradation and biofiltration technologies are efficient in controlling VOCs emissions. The combination of these technologies can overcome challenges faced by separate applications, making it a promising field for practical engineering.
CRITICAL REVIEWS IN ENVIRONMENTAL SCIENCE AND TECHNOLOGY
(2022)
Article
Chemistry, Physical
Xing Zhang, Lingyun Dai, Yuxi Liu, Jiguang Deng, Lin Jing, Zhiwei Wang, Wenbo Pei, Xiaohui Yu, Jia Wang, Hongxing Dai
Summary: The study investigated the impact of porous supports on the catalytic performance of bimetallic RuCo nanoparticles in the oxidation of 1,2-dichloroethane. HZSM-5 exhibited the highest catalytic activity and chloride resistance compared to meso-MgO and meso-Al2O3 supported RuCo nanoparticles.
APPLIED CATALYSIS B-ENVIRONMENTAL
(2021)
Article
Chemistry, Physical
Zhiquan Hou, Lingyun Dai, Yuxi Liu, Jiguang Deng, Lin Jing, Wenbo Pei, Ruyi Gao, Yuan Feng, Hongxing Dai
Summary: A novel Pd/Co single-atom catalyst (Pd1Co1/Al2O3) was prepared for benzene oxidation by the research team, achieving a benzene conversion of 90% at 250 degrees Celsius. The catalyst exhibited enhanced sulfur resistance performance and good regeneration ability of the active sites.
APPLIED CATALYSIS B-ENVIRONMENTAL
(2021)
Article
Engineering, Environmental
Shaohua Xie, Zhiwei Wang, Wei Tan, Yatong Zhu, Samantha Collier, Lu Ma, Steven N. Ehrlich, Peng Xu, Yong Yan, Tao Xu, Jiguang Deng, Fudong Liu
Summary: A novel two-step wetness impregnation method was developed to fabricate a unique and highly stable CeO2/Al2O3 support, enabling Pd catalysts anchored on this support to exhibit higher activity and thermal stability in CO and hydrocarbon oxidations. This approach can be applied as a universal method to prepare stable metal oxide-alumina-based supports, with broad applications in environmental catalyst design.
ENVIRONMENTAL SCIENCE & TECHNOLOGY
(2021)
Article
Chemistry, Physical
Peiqi Chu, Saifei Wang, Shiguang Zhao, Yi Zhang, Yanan Guan, Jiguang Deng, Li'an Hou, Erhong Duan
Summary: The novel La-B-O-C composites were fabricated as catalysts for methane catalytic combustion at low temperature. Three metal ions (Co, Mn, Fe) were selected for experiment based on the effect of the newly formed C-O bond on B-site ions as active sites. The study showed that different metal ions had varying effects on the physicochemical properties and catalytic performance of the composites, with LC-C and LF-C showing superior performance compared to unmodified catalysts, while LM-C showed a slight decrease in performance. Sacrifice of Mn4+ in LM-C was found to weaken the catalytic activity. Mechanistic differences for different B-site elements in the La-B-O-C were also observed.
INTERNATIONAL JOURNAL OF HYDROGEN ENERGY
(2021)
Review
Chemistry, Physical
Shahla Karimi, Fatemeh Bibak, Fereshteh Meshkani, Ali Rastegarpanah, Jiguang Deng, Yuxi Liu, Hongxing Dai
Summary: This review focuses on the use of different promoters in controlling the deactivation of nickel-based catalysts in the thermocatalytic decomposition of methane (TCD) process and their impact on the formed carbon nanomaterials. By discussing the classification of different promoters and their mechanisms of action in detail, it provides a reference for the design of catalysts for efficient pure hydrogen production and carbon nanomaterials.
INTERNATIONAL JOURNAL OF HYDROGEN ENERGY
(2021)
Article
Engineering, Environmental
Hua-Yung Liao, Shu-Yuan Pan, Shu-Wen You, Chia-Hung Hou, Can Wang, Ji-Guang Deng, Hsing-Cheng Hsi
Summary: This study developed a novel electrothermal swing system with gold-electrodeposited activated carbon fiber cloth (GE-ACFC) for adsorbing and recovering low-concentration Hg0, showing that GE-ACFC with an Au growth time of 1200 s had the best Hg0 adsorption performance; the treated GE-ACFC could achieve stable and efficient Hg re-adsorption.
JOURNAL OF HAZARDOUS MATERIALS
(2021)
Article
Chemistry, Inorganic & Nuclear
Ali Rastegarpanah, Yuxi Liu, Jiguang Deng, Lin Jing, Wenbo Pei, Xing Zhang, Zhiquan Hou, Mehran Rezaei, Hongxing Dai
Summary: The three-dimensionally ordered macroporous (3DOM) nickel-copper mixed oxides prepared using the dual-templating method exhibited high catalytic activity and stability for CO oxidation, attributed to their large surface area, high oxygen adspecies concentration, good low-temperature reducibility, and unique nanovoid 3DOM structure.
JOURNAL OF SOLID STATE CHEMISTRY
(2021)
Article
Chemistry, Physical
Zhiwei Wang, Shaohua Xie, Ying Feng, Peijie Ma, Kun Zheng, Erhong Duan, Yuxi Liu, Hongxing Dai, Jiguang Deng
Summary: Fe2O3 supported single atom Pt catalysts were synthesized via a novel impregnation-pyrolysis method, showing good light-thermal conversion efficiency and high toluene oxidation performance under simulated sunlight irradiation. The role of Vis-IR light in the photothermal catalytic oxidation of toluene was highlighted, and a possible reaction pathway was proposed based on experiments.
APPLIED CATALYSIS B-ENVIRONMENTAL
(2021)
Article
Chemistry, Physical
Yajie Shu, Jian Ji, Ming Zhou, Shimin Liang, Quan Xie, Sitan Li, Biyuan Liu, Jiguang Deng, Jianping Cao, Shengwei Liu, Haibao Huang
Summary: Surface fluorination and Pt deposition on TiO2 can reduce the formation of NOx during photocatalytic oxidation of low-concentration NH3, changing the photocatalytic pathway of NH3 conversion.
APPLIED CATALYSIS B-ENVIRONMENTAL
(2022)
Article
Engineering, Environmental
Yuan Feng, Chongchen Wang, Can Wang, Haibao Huang, Hsing-Cheng Hsi, Erhong Duan, Yuxi Liu, Guangsheng Guo, Hongxing Dai, Jiguang Deng
Summary: The Pt-1/MnOx catalyst shows different catalytic stabilities for the oxidation of toluene and iso-hexane, with improved stability for toluene oxidation after hydrogen reduction treatment. Balancing lattice oxygen mobility and organic compounds adsorption is crucial for the catalytic stability of Pt-1/MnOx.
JOURNAL OF HAZARDOUS MATERIALS
(2022)
Article
Nanoscience & Nanotechnology
Lingzhi Tang, Yang Huang, Chen Wang, Zhenxuan Zhao, Yiming Yang, Jiming Bian, Huaqiang Wu, Zengxing Zhang, David Wei Zhang
Summary: The study demonstrates a flexible TS selector with high performance and endurance, using organic-inorganic hybrid perovskite materials. These selectors, produced through a low-cost solution process, show excellent performance and exhibit great potential in flexible electronic devices.
ADVANCED ELECTRONIC MATERIALS
(2022)
Article
Chemistry, Multidisciplinary
Zhenxuan Zhao, Jianshi Tang, Jian Yuan, Yijun Li, Yuan Dai, Jian Yao, Qingtian Zhang, Sanchuan Ding, Tingyu Li, Ruirui Zhang, Yu Zheng, Zhengyou Zhang, Song Qiu, Qingwen Li, Bin Gao, Ning Deng, He Qian, Fei Xing, Zheng You, Huaqiang Wu
Summary: This study demonstrates a flexible tactile sensor array with high spatial resolution and showcases its applications in identifying footprints and recognizing handwritten digits and Chinese calligraphy. The integration of sensor networks with deep learning hardware shows potential for reducing power consumption and latency in edge computing. This work is significant for the development of large-scale intelligent sensor networks for next-generation smart robotics.
Article
Materials Science, Multidisciplinary
Lingzhi Tang, Yang Huang, Chen Wang, Zhenxuan Zhao, Yiming Yang, Jiming Bian, Huaqiang Wu, Zengxing Zhang, David Wei Zhang
Summary: This study demonstrates flexible threshold switching memristors with ultrahigh switching speed and robust flexibility through a low-cost solution process. The leaky integrate-and-fire dynamics and strength-modulated spike frequency response as artificial neurons are investigated. The working mechanism of the ultrahigh switching speed and the potential cause of the robust flexibility are analyzed using a migration model and time-resolved photoluminescence.
JOURNAL OF MATERIALS CHEMISTRY C
(2022)
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)
