Article
Materials Science, Multidisciplinary
Xiaoqing Guo, Xiaowei Kong, Dan Wu, Yanhui Sun, Long Li, Liang Sun, Jun Zhang
Summary: This study investigates the catalytic activity of three-dimensionally ordered macroporous (3DOM) LaFeO3 catalysts in methane oxidation. The addition of Co to the catalyst improves its surface area, crystallite size, and Fe4+/Fe3+ ratio, resulting in enhanced catalytic activity. However, an excessive amount of surface carbonate or hydroxide compounds can decrease the catalytic activity. Overall, the 3DOM LaFeO3 catalyst calcined at 700 degrees C exhibits better performance than the Co-doped 3DOM LaFe1-xCoxO3 catalysts.
MATERIALS TODAY COMMUNICATIONS
(2022)
Article
Materials Science, Ceramics
Sen Chang, Kunjun Wang, Yongguo Li, Jia Wang, Xuemei Song, Zhaochen Zhang, Xin Chen, Jianlu Pei, Yunfeng Shi, Xin'gang Luan
Summary: The sol-gel combined with colloidal crystal template method was used to introduce a three-dimensionally ordered macroporous structure into the silver-silica aerogel, significantly improving the iodine capture capacity.
CERAMICS INTERNATIONAL
(2022)
Article
Chemistry, Physical
Hyung-Seok Lim, Won-Jin Kwak, Dan Thien Nguyen, Wei Wang, Wu Xu, Ji-Guang Zhang
Summary: Metal-oxygen batteries (MOBs) are promising for energy storage due to safety, low cost, and high energy density. However, the accumulation of discharge products during the oxygen reduction process can hinder the flow of active species, leading to increased impedance and shortened cycle life. A 3D-SOM structure of ruthenium/single-walled carbon nanotubes air electrode is shown to mitigate these effects and enhance the performance of MOBs.
JOURNAL OF MATERIALS CHEMISTRY A
(2023)
Article
Chemistry, Physical
Yusong Dong, Fujisaka Ai, Dongxiao Sun-Waterhouse, Kei-ichiro Murai, Toshihiro Moriga, Geoffrey I. N. Waterhouse
Summary: Colloidal crystal templating is a versatile method for synthesizing inverse opal photonic crystals. In this study, tantalum oxide inverse opal thin films and powders were successfully fabricated using the colloidal crystal templating method. The films and powders showed structural color and the position of the photonic band gap increased linearly with the diameter of the macropores and the refractive index of the filling medium. Thermal ammonolysis of the tantalum oxide films resulted in well-ordered Ta3N5 inverse opals with high specific surface areas and a semiconductor band gap. These Ta3N5 inverse opals exhibited enhanced photocatalytic performance compared to conventional powder photocatalysts.
CHEMISTRY OF MATERIALS
(2023)
Review
Chemistry, Multidisciplinary
Rui-tang Guo, Xing Hu, Xin Chen, Zhe-xu Bi, Juan Wang, Wei-guo Pan
Summary: In recent years, 3DOM materials have gained significant attention in photocatalysis due to their unique physicochemical properties. The fundamentals and principles of 3DOM photocatalysts are briefly introduced in this review, along with the preparation methods, structure, properties, and their effects on photocatalytic performance. Moreover, the combination of 3DOM materials with various common materials is extensively employed to enhance photocatalytic performance, and the prospects and challenges for the development of 3DOM materials in photocatalysis are discussed.
Article
Chemistry, Physical
Kunfeng Zhang, Hongxia Chen, Wenbo Pei, Hongxing Dai, Junshan Li, Yongfa Zhu
Summary: A series of 3D ordered macroporous (3DOM) Bi4O5Br2 photocatalysts with different macropore sizes were fabricated using a PMMA template method. The photocatalytic activity of 3DOM Bi4O5Br2 first increased and then decreased with the rise in macropore size. Specifically, 3DOM Bi4O5Br2-255 exhibited the highest photocatalytic activity among various catalysts tested, showing significantly higher efficiency in phenol degradation compared to bulk Bi4O5Br2, Bi2WO6, and g-C3N4. The improved performance of 3DOM Bi4O5Br2-255 can be attributed to its enhanced phenol adsorption, O2 activation, and charge separation and transfer abilities.
Article
Electrochemistry
Angela Capri, Alejandra Martinez-Lazaro, Jose Bejar, Irene Gatto, Lorena Alvarez-Contreras, Mayra Polett Gurrola, Janet Ledesma-Garcia, Vincenzo Baglio, Luis Gerardo Arriaga
Summary: In this study, a Ni0.5Mn0.5Co2O4 trimetallic catalyst with a spinel structure and three-dimensionally ordered macroporous (3DOM) morphology was synthesized using a polymethylmethacrylate (PMMA) template. The incorporation of Mn and Ni into the Co3O4 crystal structure and the formation of the 3DOM morphology were confirmed through X-ray diffraction and microscopy analyses. The developed catalyst exhibited a maximum current density of 2.5 A cm-2 at 2.2 V, outperforming the benchmarked IrO2 electrocatalysts.
ELECTROCHIMICA ACTA
(2023)
Review
Chemistry, Multidisciplinary
Yang Ding, Chun-Hua Wang, Jia-Song Zhong, Qi-Nan Mao, Run-Tian Zheng, Yun Hau Ng, Ming-Hui Sun, Soumyajit Maitra, Li-Hua Chen, Bao-Lian Su
Summary: Due to their unique characteristics, three-dimensionally ordered macroporous (3DOM) materials have been widely used in environmental fields such as pollutants removal, environmental detection, and bacterial disinfection. This review comprehensively presents the latest 3DOM materials, synthesis methods, and their applications in photoelectrocatalytic pollutants decomposition, VOCs elimination, hazardous substances sensing, and bacteria inactivation. The advantages and mechanisms of 3DOM materials in different environmental applications are thoroughly demonstrated and summarized. The review also discusses the improved performance and methods of fabricating 3DOM materials, providing readers with fundamental knowledge and inspiring innovative thoughts for further enhancing their environmental remediation capability. Lastly, the current challenges and prospects of large-scale and commercial applications of 3DOM materials are discussed.
SCIENCE CHINA-CHEMISTRY
(2023)
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
Nanoscience & Nanotechnology
Xue-Ying Li, Guang-Ting Sun, Fan Fan, Yan-Yang Li, Qing-Chao Liu, Hong-Chang Yao, Zhong-Jun Li
Summary: In this study, a series of Au-25 nanocluster-decorated three-dimensionally ordered macroporous In2O3 materials were created to enhance formaldehyde (FA) sensing properties. The optimal material showed higher sensitivity, shorter response/recovery times, better selectivity, and excellent reproducibility compared to its counterparts. The enhanced FA responses were mainly attributed to the electronic and chemical-sensitization effects of Au-25 nanoclusters, and the size-dependent effect of FA responses was ascribed to the size of Au nanoparticles affecting the formation of oxygen-adsorbing species.
ACS APPLIED MATERIALS & INTERFACES
(2022)
Article
Chemistry, Physical
Yunqiu Zhang, Yuanxin Li, Huilin Bi, Shuxing Zhou, Jianbing Chen, Shusheng Zhang, Yimin Huang, Fengqin Chang, Hucai Zhang, Thomas Wagberg, Guangzhi Hu
Summary: Halloysite nanotubes (HNTs) modified with nanomanganese cobaltate (MnCo2O4) can drive peroxymonosulfate (PMS) to generate reactive oxygen species (ROS) for the high degradation efficiency and mineralization rates of antibiotic pollutants such as ornidazole (ONZ). The MCO@HNTs + PMS system exhibits excellent catalytic activity, stability, and anti-interference effect in the wide pH range. Singlet oxygen (1O2) is identified as the main ROS for ONZ degradation. The study provides a simple, environmentally friendly, and cost-effective PMS activation catalyst for the treatment of antibiotic wastewater.
JOURNAL OF COLLOID AND INTERFACE SCIENCE
(2023)
Article
Green & Sustainable Science & Technology
Y. Pi, W. Luo, N. Ta, J. Liu
Summary: Constructing three-dimensionally ordered macroporous (3DOM) materials with well-defined structures and fascinating properties has attracted extensive attention. A novel strategy using 3-aminophenol formaldehyde resins microspheres as a template was developed for the control synthesis of 3DOM TiO2. The as-prepared 3DOM TiO2 materials exhibit a periodic inter-connected macroporous structure with a large surface area. The method allows for tunable macroporous size and crystallinity of TiO2, as well as controlled carbon residue decoration inside the macropores.
MATERIALS TODAY SUSTAINABILITY
(2023)
Article
Chemistry, Applied
Kai Zeng, Zhong Wang, Da Wang, Chao Wang, Jun Yu, Guanglei Wu, Qingshing Zhang, Xuebing Li, Chuanhui Zhang, Xiu Song Zhao
Summary: In this study, the effects of samarium doping on the 3DOM MnSmOx composite oxides as catalytic materials were systematically investigated, revealing that samarium doping significantly improved the redox ability and surface oxygen mobility of the catalyst, and the 3DOM architecture showed superiority in promoting the surface adsorption and oxidation of propane molecules.
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
Polymer Science
Raul Guimaraes, Miguel L. Laper, Vinicius G. de Castro, Glaura G. Silva, Ludmila G. O. Xavier, Tulio Matencio, Manuel Houmard, Eduardo H. M. Nunes
Summary: This study demonstrates the preparation of three-dimensionally ordered macroporous polymer structures through ice-templating, using PVA as a model system. The addition of MWCNTs showed a strengthening effect on the scaffolds, with different freezing routes influencing mechanical stability and electrical conductivity. The obtained materials exhibited high porosity above 85%, making them potentially useful in various applications.
JOURNAL OF APPLIED POLYMER SCIENCE
(2021)
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, 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)
Review
Environmental Sciences
Chunxiao Wu, Lin Jing, Jiguang Deng, Yuxi Liu, Shuang Li, Sijie Lv, Yajie Sun, Qichao Zhang, Hongxing Dai
Summary: Red phosphorus (RP) is a new class of photocatalyst with tunable bandgaps and strong visible-light response, but its photocatalytic activity is still limited due to low charge carrier mobility and severe charge trapping effects. Various efforts have been made to improve its activity, such as morphology modification and cocatalysts addition.
Article
Chemistry, Physical
Xiaohui Yu, Lingyun Dai, Jiguang Deng, Yuxi Liu, Lin Jing, Xing Zhang, Xiyun Jiang, Zhiquan Hou, Jia Wang, Hongxing Dai
Summary: Ru nanoparticles supported on 3DOM SnO2 exhibited excellent catalytic activity for the oxidation of TCE and/or toluene. The high catalytic performance was attributed to the presence of hydroxyl groups, strong O-2 adsorption ability, low-temperature reducibility, and strong interaction between Ru NPs and 3DOM SnO2. The catalytic mechanism over xRu/3DOM SnO2 under dry and humid conditions was proposed, providing insights for the industrial application of Ru catalysts in the removal of Cl-containing volatile organic compounds.
JOURNAL OF CATALYSIS
(2021)
Article
Engineering, Environmental
Lu Wei, Zhiwei Wang, Yuxi Liu, Guangsheng Guo, Hongxing Dai, Suping Cui, Jiguang Deng
Summary: According to the study, Mn-based catalysts with SO2&K co-poisoning exhibit higher SCR activity than catalysts poisoned by SO2 or K individually. The majority of K adsorbed on the support leads to increased alkalinity, promoting the adsorption of SO2 and reducing the toxicity of the active component.
JOURNAL OF HAZARDOUS MATERIALS
(2021)
Article
Chemistry, Physical
Xiuqing Hao, Lingyun Dai, Jiguang Deng, Yuxi Liu, Lin Jing, Jia Wang, Wenbo Pei, Xing Zhang, Zhiquan Hou, Hongxing Dai
Summary: In this study, nanotubular OMS-2 support was synthesized using a hydrothermal redox reaction and used to prepare single-atom Pt and Pt-NP catalysts for benzene oxidation. The 0.0383Pt(1)/OMS-2 catalyst exhibited the best catalytic performance with a 90% benzene conversion rate achieved.
JOURNAL OF PHYSICAL CHEMISTRY C
(2021)
Review
Environmental Sciences
Yong-Chao Wang, Meng-Fei Han, Ti-Pei Jia, Xu-Rui Hu, Huai-Qun Zhu, Zhen Tong, Yu-Ting Lin, Can Wang, De-Zhao Liu, Yong-Zhen Peng, Gen Wang, Jie Meng, Zeng-Xiu Zhai, Yan Zhang, Ji-Guang Deng, Hsing-Cheng Hsi
Summary: This paper compares odor standards in different countries and summarizes the emission characteristics and control technologies of livestock farms, including ammonia concentration, sampling methods, odor analysis methods, and three categories of control technologies: physical, chemical, and biological.
SCIENCE OF THE TOTAL ENVIRONMENT
(2021)
Article
Chemistry, Physical
Sijie Lv, Yun Hau Ng, Ruixue Zhu, Shuang Li, Chunxiao Wu, Yuxi Liu, Yafei Zhang, Lin Jing, Jiguang Deng, Hongxing Dai
Summary: In this study, a phosphorus vapor assisted synthetic strategy was used to fabricate P-doped ultrathin hollow g-C3N4 photocatalysts, which exhibited high photocatalytic hydrogen evolution performance. The ultrafast time-resolved spectroscopy was employed to reveal the charge dynamics in the P/UH-CNS system.
APPLIED CATALYSIS B-ENVIRONMENTAL
(2021)
Article
Chemistry, Physical
Shuang Li, Yun Hau Ng, Ruixue Zhu, Sijie Lv, Chunxiao Wu, Yuxi Liu, Lin Jing, Jiguang Deng, Hongxing Dai
Summary: In this study, a red phosphorus (RP)/TiO2 composite system was constructed via a chemical vapor deposition strategy, leading to a significantly enhanced visible-light-driven photocatalytic H2 generation rate. The tight interior surface bonding between RP and TiO2 greatly promoted efficient charge transfer and redistribution, extending the lifetimes of active charges during the photocatalytic process.
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
Engineering, Environmental
Aijiao Yuan, Huachao Zhao, Wanyu Shan, Jie-Fang Sun, Jiguang Deng, Hairong Liu, Rui Liu, Jing-Fu Liu
Summary: The study reveals that overadsorption of H/D atoms on Rh nanocatalyst can decrease its surface reactivity. Depositing Rh atoms onto Pd nanowires can help overcome this dilemma and result in higher mass activity.
ACS ES&T ENGINEERING
(2021)
Article
Chemistry, Applied
Xun Wang, Yu-Xuan Li, Xiao-Hong Yi, Chen Zhao, Peng Wang, Jiguang Deng, Chong-Chen Wang
Summary: In this study, BUC-21/N-K2Ti4O9 composites were synthesized via ball-milling and showed excellent photocatalytic performance in reducing Cr(VI) under both UV and white light irradiation. The introduction of N-K2Ti4O9 broadened the light absorption range of BUC-21 and inhibited electron-hole recombination, leading to enhanced photocatalytic activity. Mechanisms of photocatalytic Cr(VI) reduction were proposed and confirmed through various experiments.
CHINESE JOURNAL OF CATALYSIS
(2021)
Article
Chemistry, Applied
Qingyuan Zheng, Jack H. Williams, Scott Elgersma, Mick D. Mantle, Andrew J. Sederman, G. Leendert Bezemer, Constant M. Guedon, Lynn F. Gladden
Summary: In this study, a pilot-scale fixed-bed reactor compatible with NMR/MRI was developed for Fischer-Tropsch synthesis. Multiple magnetic resonance techniques were applied to quantitatively characterize different product species within catalyst pellets, providing valuable information for catalyst and reactor optimization.
Article
Chemistry, Applied
Lisa Ramisch, Sebastian Pfaff, Sabrina M. Gericke, Edvin Lundgren, Johan Zetterberg
Summary: We present a combination of optical operando techniques that allow simultaneous measurement of adsorbed species on catalyst surfaces, monitoring of surface oxide formation, and imaging of the gas phase above the catalyst surface. The experimental setup was validated by studying CO oxidation on Pd(100) at different pressures, revealing the effects of pressure on the heterogeneous catalytic reaction.
Article
Chemistry, Applied
Marta Paniagua, Gabriel Morales, Juan A. Melero, Daniel Garcia-Salgado
Summary: The influence of common impurities in levulinic acid on the catalytic performance of different acid catalysts for bio-jet fuel production was studied. It was found that furfural had the greatest detrimental effect on catalyst performance, while propyl-sulfonic acid-modified SBA-15 and sulfonic acid resin Amberlyst-70 showed good regeneration ability.
Article
Chemistry, Applied
Jesus Tapiador, Pedro Leo, Guillermo Calleja, Gisela Orcajo
Summary: This study presents a new MOF material, Zn-URJC-13, with acid and basic sites, permanent porosity, and high affinity to CO2 molecules. The Zn-URJC-13 catalyst exhibits efficient performance in CO2 cycloaddition reactions and can be reused multiple times.
Article
Chemistry, Applied
Dan Zhao, Vita A. Kondratenko, Dmitry E. Doronkin, Shanlei Han, Jan-Dierk Grunwaldt, Uwe Rodemerck, David Linke, Evgenii V. Kondratenko
Summary: This study demonstrates the potential of cheap and commercially available Zr or Ti-based supports and ZnO to serve as active and selective catalysts for propane dehydrogenation (PDH). The catalytically active species formed in situ under PDH conditions consist of isolated ZnOx. ZnOx on the surface of LaZrOx shows the highest rate of propene formation.
Article
Chemistry, Applied
Hanbyeol Kim, Jung Rae Kim, Young-Kwon Park, Jeong-Myeong Ha, Jungho Jae
Summary: In this study, metal phosphates were used as catalysts for biomass conversion to produce sustainable aromatics through DielsAlder cycloaddition reactions. The effects of synthesis method, activation method, and P/Ti molar ratio on the structure and acid properties of titanium phosphate catalysts were systematically studied. The mesoporous titanium phosphate catalyst synthesized by hydrothermal method at 180℃ for 12 h followed by ethanol refluxing at 60℃ for 24 h at a molar P/Ti ratio of 1 showed the highest surface area and acid site density.
Article
Chemistry, Applied
Yasin Khani, Sumin Pyo, Kwang-Eun Jeong, Chul-Ung Kim, Moonis Ali Khan, Byong-Hun Jeon, Kun-Yi Andrew Lin, Siyoung Q. Choi, Young-Kwon Park
Summary: A protonated form of Zeolite Socony Mobil-5 (H-ZSM-5) catalyst was synthesized through a hydrothermal method using different sources of silica. The effect of loading the catalyst with yttrium, samarium, and gadolinium on the acidic properties was investigated. Among the metal-loaded catalysts, the Sm/LHZ catalyst showed the best performance in the methanol to propylene conversion due to its high amount of weak and intermediate acid sites, while the Gd-LHZ catalyst increased the selectivity towards ethane and propane.
Article
Chemistry, Applied
Michael Franc, Ivana Cisarova, Jan Vesely
Summary: The present study investigates an enantioselective cyclization of enals with imidazolone derivatives catalyzed by a combination of achiral Pd(0) complex and chiral secondary amine. Corresponding spirocyclic imidazolones were produced in high yields with moderate diastereoselectivity and excellent enantioselectivity. The developed co-operative catalytic methodology provides a highly substituted spirocyclic scaffold with four stereogenic centers under mild conditions.
Article
Chemistry, Applied
Mauro Alvarez, Jennifer Cueto, David P. Serrano, Pablo Marin, Salvador Ordonez
Summary: This study focuses on improving the formulation and preparation methods of catalysts for the production of dimethyl carbonate. By using suitable catalyst preparation methods and copper salt precursors, the researchers successfully produced catalysts with optimal performance for dimethyl carbonate formation.
Article
Chemistry, Applied
Claudia J. Keijzer, Luc C. J. Smulders, Dennie Wezendonk, Jan Willem de Rijk, Petra E. de Jongh
Summary: This study investigates the catalytic behavior of alpha-alumina supported silver catalysts in the presence of chloride. It is found that the particle size of silver can affect the selectivity of the catalyst, but different strategies lead to different results. In this size range, the selectivity of ethylene oxide is correlated to the Ag : Al2O3 surface ratio.
Article
Chemistry, Applied
Takeshi Aihara, Wataru Aoki, Michikazu Hara, Keigo Kamata
Summary: The development of acid-base bifunctional catalysts is important for promoting specific chemical transformations. In this study, Ti-based perovskite oxides were synthesized and used as catalysts for two C-C bond-forming reactions (cyanosilylation and Knoevenagel condensation). The highly pure SrTiO3 nanoparticles with a high specific surface area exhibited the highest catalytic performance, and could be easily recovered and reused.
Article
Chemistry, Applied
Olga Gorlova, Petra Pribylova, Eliska Vyskocilova, Katerina Peroutkova, Jan Kohout, Iva Paterova
Summary: This study investigates the Baeyer-Villiger oxidation of beta-cyclocitral using tin-modified mixed oxides as catalysts. The optimal reaction conditions and the effects of various factors on the reaction course and selectivity were determined. The results show that tin-modified mixed oxides exhibit high activity and selectivity in the oxidation reaction.
Article
Chemistry, Applied
M. I. Avila, M. M. Alonso-Doncel, L. Briones, G. Gomez-Pozuelo, J. M. Escola, D. P. Serrano, A. Peral, J. A. Botas
Summary: The catalytic fast pyrolysis of lignin using ion-exchanged zeolite catalysts showed significant improvements in bio-oil quality and the production of aromatic hydrocarbons and oxygenated compounds.
Article
Chemistry, Applied
Enrico Catizzone, Giorgia Ferrarelli, Paolo Bruno, Girolamo Giordano, Massimo Migliori
Summary: The acid-catalysed alcohol conversion reaction is a promising route for de-fossilization strategies. Research on pure alcohol conversion and simultaneous dehydration of mixed alcohols have shown different product compositions, with the type and distribution of acid sites affecting the reaction mechanism.
Article
Chemistry, Applied
Alireza Ranjbari, Juho Kim, Jihee Yu, Jiyun Kim, Mireu Park, Nayoung Kim, Kristof Demeestere, Philippe M. Heynderickx
Summary: This study investigated a novel kinetic model for the adsorption and photocatalytic degradation of methyl orange using commercial ZnO and reduced ZnO photocatalysts. The results provided new insights into the interaction of catalysts with molecules of different charges and compared with a previous study on methylene blue. The presence of oxygen vacancies in ZnO and their effects on adsorption and photocatalytic degradation were analyzed, and the photocatalytic degradation rate of reduced ZnO was found to increase significantly.
