Review
Chemistry, Applied
Jin Wang, Justin Zhu Yeow Seow, Zhichuan J. Xu, Xiao Ren
Summary: This article discusses strategies to improve the selectivity of alkene electrooxidation, focusing on the regulation of electrocatalysts' geometric and electronic structures, as well as the application of mediated indirect oxidation. Furthermore, the article provides an overview of current challenges and problems that need further investigation in improving the industrial feasibility of electrochemical alkene oxidation.
CHINESE JOURNAL OF CATALYSIS
(2023)
Article
Nanoscience & Nanotechnology
Shaojie Li, Anna Liutkova, Nikolay Kosinov, Emiel J. M. Hensen
Summary: This study uses an easily prepared organic compound as an organic structure directing agent to successfully synthesize zeolites composed of agglomerated nanocrystals. The nanosized zeolites show superior activity as catalysts in various reactions.
ACS APPLIED NANO MATERIALS
(2022)
Article
Chemistry, Applied
Wei Liu, Jiaying Fan, Zhongxian Song, Xuejun Zhang
Summary: Modifying Co(3)O(4) through a combination of structural template and Ce dopant can significantly improve its catalytic performance, leading to the superior catalytic performance of mesoporous CexCoO catalysts. Among them, Ce0.05CoO performs the best, achieving a toluene conversion rate of 90% at 238 degrees Celsius, which is maintained above 90% during 100 hours.
APPLIED ORGANOMETALLIC CHEMISTRY
(2021)
Article
Chemistry, Multidisciplinary
Hiroto Fujisaki, Masaya Okamura, Shiro Hikichi, Takahiko Kojima
Summary: Fe(ii) complexes with pentadentate ligands, including N-heterocyclic carbene moieties, were immobilized onto perfluorinated mesoporous aluminosilicate. These heterogeneous catalysts exhibited excellent performance and selectivity in alkane hydroxylation and cyclohexene epoxidation using H2O2 as the oxidant in CH3CN solvent.
CHEMICAL COMMUNICATIONS
(2023)
Article
Nanoscience & Nanotechnology
Bowen Li, Kelvin Mingyao Kwok, Hua Chun Zeng
Summary: Zeolites, commonly used in the chemical industry, are now being synthesized and functionalized into complex hollow ZSM-5 catalysts with catalytic nanoparticles. This innovative approach enhances the stability, selectivity, and activity of the catalysts, demonstrating improved catalytic performance in hydrogenation reactions.
ACS APPLIED MATERIALS & INTERFACES
(2021)
Review
Engineering, Environmental
Fu-Xue Wang, Zi-Chen Zhang, Chong-Chen Wang
Summary: Efficient decontamination from water has become a global concern. Advanced oxidation processes (AOPs) are widely used in water purification for the degradation of aqueous organic pollutants. However, efficiently oxidizing trace micropollutants, especially in sewage matrices with complex matters, remains a great challenge. Researchers have recently focused on selective oxidation to address this issue. Metal-organic frameworks (MOFs) and their composites/derivatives have shown significant potential as catalysts for selective oxidation of organic pollutants in water due to their designable structure and excellent catalytic performance. This review highlights the research progress of MOFs-based materials in selective oxidation and discusses their advantages, performance, mechanisms, and influencing factors. The challenges and prospects of MOFs-based environmental functional materials in selective oxidation from water are also discussed.
CHEMICAL ENGINEERING JOURNAL
(2023)
Article
Environmental Sciences
Sajad Mobini, Mehran Rezaei, Fereshteh Meshkani
Summary: Co-Fe, Cu-Cr, and Co-Mn mixed oxide catalysts were prepared using a one-pot hard template synthesis method, and their catalytic performance significantly improved after rearrangement of the template, with increased specific surface area and reducibility. The CoMn catalyst showed the most promising catalytic performance with a reduced 100% conversion temperature. However, the presence of water vapor was found to decrease the activity and stability of the catalyst, with a calculated activation energy of 59.5 kJ/mol for the Co-Mn catalyst, confirming the MVK mechanism as the most probable reaction mechanism.
ENVIRONMENTAL SCIENCE AND POLLUTION RESEARCH
(2021)
Article
Nanoscience & Nanotechnology
Ying Yang, Hyunho Noh, Qing Ma, Rui Wang, Zhihengyu Chen, Neil M. Schweitzer, Jian Liu, Karena W. Chapman, Joseph T. Hupp
Summary: A strategy for synthesizing sub-nanometer to 2 nm metal clusters and particles was successfully demonstrated, utilizing a combination of a metal-organic framework (MOF) and dendrimer templates to improve synthesis and create stable, efficient heterogeneous catalysts.
ACS APPLIED MATERIALS & INTERFACES
(2021)
Article
Environmental Sciences
Chibin Zheng, Yunhan Ling, Jianyue Chen, Xiaomin Yuan, Shilin Li, Zhengjun Zhang
Summary: In this study, a versatile and selective electrochemical sensor based on dummy molecularly imprinted poly (3,4-ethylenedioxythiophene)/laser-induced graphene (MIPEDOT/LIG) was successfully developed for the specific detection of multiple nitroaromatic explosives. The sensor exhibited outstanding selectivity and sensitivity for representative nitroaromatic explosives with low limits of determination. It also demonstrated extraordinary reliability and convenience for environmental sample detection. The findings provide a new direction for the development of multi-target electrochemical sensors for explosives detection.
ENVIRONMENTAL RESEARCH
(2023)
Review
Chemistry, Multidisciplinary
Sharif Najafishirtari, Klaus Friedel Ortega, Mark Douthwaite, Samuel Pattisson, Graham J. Hutchings, Christoph J. Bondue, Kristina Tschulik, Daniel Waffel, Baoxiang Peng, Michel Deitermann, G. Wilma Busser, Martin Muhler, Malte Behrens
Summary: Selective oxidation of higher alcohols is essential in the synthesis of fine chemicals, but lacks fundamental understanding due to the complexity of catalysts and reaction conditions. Developing new materials and advanced characterization techniques is crucial to unravel the structure-performance correlations of catalysts and address the complex interplay between solid surfaces, reactants, and solvents.
CHEMISTRY-A EUROPEAN JOURNAL
(2021)
Article
Chemistry, Applied
Yu Liu, Jiayun Li, Ying Bai, Jiajian Peng
Summary: A series of nitrogen phosphine ligands were synthesized for investigating the hydrosilylation reaction of alkenes catalyzed using MCl2. Among them, the CoCl2/N,P-ligand catalyst system showed high catalytic activity and excellent selectivity, achieving close to 100% selectivity for beta-adduct.
APPLIED ORGANOMETALLIC CHEMISTRY
(2021)
Article
Chemistry, Applied
Sogand Etehadi Abari, Reihaneh Malakooti, Aliyeh Feghhi
Summary: Mesostructured Cu-x/Ce-y mixed oxides were prepared using mesoporous silica as a template. The results showed that the activity of the catalysts was influenced by the Cu/Ce ratio and the balance between the concentration of Cu and the structural characteristics.
APPLIED ORGANOMETALLIC CHEMISTRY
(2023)
Article
Chemistry, Physical
Joao Felipe Stival, Sandra Liliana Albornoz Marin, Patricio Guilhermo Peralta Zamora, Julio Santos Reboucas, Franziska Grohn, Sarah Bernhardt, Fernando Wypych, Shirley Nakagaki
Summary: Cationic manganese (MnP) and anionic iron (FeP) metalloporphyrins were synthesized in conjunction with different morphologies of zinc oxide. The catalysts were immobilized on zinc oxide and evaluated for the oxidation of cyclohexane using iodosylbenzene (PhIO) as the oxidant. FeP/ZnO showed higher activity than neat ZnO and MnP/ZnO under dark conditions. The selectivity of the reaction was ketone when the catalyst/oxidant/substrate ratio was 1:100:1000 with acetonitrile as the solvent, while alcohol selectivity was observed when the ratio was changed to 1:20:1000 and the catalyst amount was increased 10 times. Under irradiation with a dichroic halogen lamp, FeP systems showed increased selectivity for alcohol, while no such increase was observed with MnP, possibly due to structural differences between FeP and MnP.
APPLIED CATALYSIS A-GENERAL
(2023)
Review
Engineering, Environmental
Hailong Li, Jinjin Huang, Jianping Yang, Zequn Yang, Wenqi Qu, Zhengyong Xu, Kaimin Shih
Summary: This paper introduces an effective method for removing Hg0 from flue gas in coal-fired power plants using SCR catalysts and wet flue gas desulfurization technology, and focuses on the behavior of Hg2+ reduction under SCR conditions. Measures to suppress Hg2+ reduction are proposed, providing guidance for designing efficient Hg0 oxidation SCR catalysts.
CHEMICAL ENGINEERING JOURNAL
(2021)
Article
Chemistry, Multidisciplinary
Christopher S. Gravatt, Luis Melecio-Zambrano, Tehshik P. Yoon
Summary: The sole method available for the photocycloaddition of unconjugated aliphatic alkenes is the Cu-catalyzed Salomon-Kochi reaction. A new catalyst system with superior reactivity and photostability has been designed, offering significantly expanded substrate scope and highlighted through the preparation of the natural products sulcatine G and perforatol.
ANGEWANDTE CHEMIE-INTERNATIONAL EDITION
(2021)
Article
Chemistry, Physical
Zi-Ye Liu, Qian-Yu Wang, Ji-Ming Hu
Summary: In this study, a layered carbon dot composite catalyst (NiFe LDH@CDs) was prepared using a one-step coprecipitation method, without the need for heating or hydrothermal treatment. The CD-functionalized catalyst facilitated rapid charge transfer and accelerated the oxygen evolution reaction. Additionally, the heterojunction structure formed between NiFe LDH and CDs efficiently suppressed photoelectron-hole recombination.
CATALYSIS SCIENCE & TECHNOLOGY
(2024)
Article
Chemistry, Physical
Rohit Kumar, Ankit Kumar Srivastava, Palaniyappan Nagarasu, Vedichi Madhu, Ekambaram Balaraman
Summary: We designed and synthesized a NN-CoII bidentate complex and used it for the amination of alcohols under mild and solventless conditions. The complex exhibited good reactivity towards both primary and sterically hindered secondary alcohols, providing high yields of amines. The pyrazole moiety in the ligand played a crucial role in the reaction. Furthermore, we demonstrated the reusability of the complex as a homogeneous cobalt catalyst.
CATALYSIS SCIENCE & TECHNOLOGY
(2024)
Article
Chemistry, Physical
Shivanand Chettri, Liang-Ting Wu, Sagarmani Rasaily, Debesh Sharma, Bikram Gurung, Rajani Dewan, Sudarsan Tamang, Jyh-Chiang Jiang, Anand Pariyar
Summary: Replicating the enzymatic surface microenvironment in vitro is challenging, but constructing an analogous model could facilitate our understanding of surface effects and aid in developing an efficient bioinspired catalytic system. In this study, five unique Cu2O morphologies were generated, and the surface morphology variations were found to be a consequence of differences in the exposure of low-index facets. The reactivity of Cu2O was found to be influenced by the proportion of {110} planes, with r-Cu2O exhibiting the highest reactivity.
CATALYSIS SCIENCE & TECHNOLOGY
(2024)
Article
Chemistry, Physical
Yong Tang, Jianhao Qiu, Dingliang Dai, Guanglu Xia, Lu Zhang, Jianfeng Yao
Summary: Defect engineering has been shown to improve the photocatalytic performance. This study investigated the use of defect-rich UiO-66-NH2 wrapped by ZnIn2S4 as a catalyst for photocatalytic H2O2 production. The defects in UiO-66-NH2 enhanced O-2 adsorption and charge separation, leading to higher H2O2 yield. The insights from this work can advance the research in defect engineering of MOFs and photocatalytic H2O2 synthesis.
CATALYSIS SCIENCE & TECHNOLOGY
(2024)
Article
Chemistry, Physical
Ruiyang Qu, Shuxin Mao, Jana Weiss, Vita A. Kondratenko, Evgenii V. Kondratenko, Stephan Bartling, Haifeng Qi, Annette-Enrica Surkus, Kathrin Junge, Matthias Beller
Summary: The hydrogenation of amides, a challenging reaction usually performed at high temperatures, has been achieved under milder conditions using a new Pt-MoOx/TiO2 catalyst. This catalyst system enables the selective hydrogenation of various amides and imides.
CATALYSIS SCIENCE & TECHNOLOGY
(2024)
Article
Chemistry, Physical
Xiaoran Niu, Ao Wang, Lei Tong, Lei Wang, Yuan Kong, Chenliang Su, Hai-Wei Liang
Summary: This study introduces a novel intermetallic PdCu3 catalyst supported on defective nanodiamond-graphene (ND@G), which exhibits high selectivity (95%) and remarkable activity (turnover frequency: 2940 h(-1)), six times higher than that of the commercial Lindlar catalyst.
CATALYSIS SCIENCE & TECHNOLOGY
(2024)
Review
Chemistry, Physical
Zhiyuan Zheng, Yiming Yue, Hongying Zhuo, Qinggang Liu, Yanqiang Huang
Summary: This review presents the recent research advances on single-atom catalysis for deep reduction of CO2. Detailed introductions and summaries were classified into three categories based on proton-coupled multi-electron transfer approaches: strengthening metal-support interaction, rational design and regulation of coordination environment, and development of SACs with multi-atom active sites. The challenges and future research directions in the field of SACs for CO2 reduction are also proposed.
CATALYSIS SCIENCE & TECHNOLOGY
(2024)
Article
Chemistry, Physical
Shiv Kumar, Paramita Datta, Anup Bhunia, Swadhin K. Mandal
Summary: This article reports a transition-metal-free process for in situ denitrogenation of tosylhydrazones, resulting in the production of various sulfones. The authors used a phenalenyl-based odd alternant hydrocarbon as a photoredox catalyst, which acted as a potent oxidant to facilitate the denitrogenation reaction. The method showed wide functional-group tolerance and high yields, making it suitable for late-stage modification of natural products.
CATALYSIS SCIENCE & TECHNOLOGY
(2024)
Article
Chemistry, Physical
L. A. Luque-Alvarez, J. Gonzalez-Arias, F. Romero-Sarria, T. R. Reina, L. F. Bobadilla, J. A. Odriozola
Summary: Currently, the production of acetic acid through the carbonylation reaction of methanol has limitations, leading to the exploration of alternative methods using heterogeneous catalysts. This study investigates the methanol carbonylation reaction over a Cu-H-MOR catalyst and proposes a reaction mechanism based on the catalytic behavior and performance of the catalyst. The results provide insights into the reaction mechanism and the involvement of acid and redox centers.
CATALYSIS SCIENCE & TECHNOLOGY
(2024)
