Article
Chemistry, Inorganic & Nuclear
Nikolai F. Romashev, Pavel A. Abramov, Ivan Bakaev, Iakov S. Fomenko, Denis G. Samsonenko, Alexander S. Novikov, Kelvin K. H. Tong, Dohyun Ahn, Pavel Dorovatovskii, Yan Zubavichus, Aleksey A. Ryadun, Olga A. Patutina, Maxim N. Sokolov, Maria Babak, Artem L. Gushchin
Summary: A series of Pt and Pd complexes with dpp-Bian and different ligands were synthesized and characterized. The Pt(dpp-Bian) complexes showed high anticancer activity at low concentrations and exhibited selectivity towards cancer cells. These complexes induced the generation of reactive oxygen species in cancer cells and were able to intercalate into DNA.
INORGANIC CHEMISTRY
(2022)
Article
Chemistry, Inorganic & Nuclear
Tianye Gao, Lizhen Meng, Guang Zeng, Zhiqiang Hao, Zhangang Han, Qi Feng, Jin Lin
Summary: In this study, four dual-ligand coordinated copper complexes were successfully synthesized by reacting with different ligands, providing new options for catalyst research. These complexes exhibited high catalytic activity and good selectivity for the oxidation of primary and secondary alcohols.
Article
Chemistry, Multidisciplinary
Lahinakillathu Nishana, Ayyamperumal Sakthivel, M. R. Prathapachandra Kurup, Krishna K. Damodaran, Antonysamy Kulandaisamy, Sithambaresan Maheswaran
Summary: The structural characteristics of a series of copper(II) complexes were investigated using spectroscopic and analytical methods. The crystal structures of aroylhydrazone, APMB and copper complex 4 were resolved using single-crystal X-ray diffraction studies. The copper(II) complexes showed promising catalytic activity in the oxidation of cinnamyl alcohol, with complex 1 exhibiting the highest activity.
NEW JOURNAL OF CHEMISTRY
(2023)
Article
Chemistry, Multidisciplinary
Abhinandan Mahanta, Koushik Barman, Umme Solaem Akond, Sk Jasimuddin
Summary: The study presents the heterogenization of a Cu-based molecule on a gold electrode, showing promising catalytic activity for the electrocatalytic oxidation of water. The newly developed surface-bound complex exhibits excellent stability and efficiency in the oxygen evolution reaction, demonstrating potential as an efficient catalyst for water oxidation.
NEW JOURNAL OF CHEMISTRY
(2021)
Article
Chemistry, Inorganic & Nuclear
Yi Tian, Yilin Liu, Jingpeng Han, Lei Liu, Han Luo, Meili Hou, Ruopeng Bai, Yu Lan, Baosheng Li
Summary: In this study, a novel triazole-phosphine Pd(II) complex was used as a catalyst for the dehydrogenation of alcohols or amines using iodobenzene as the oxidant. The reaction showed high selectivity and could further oxidize primary alcohols and imines into acids or nitriles.
Article
Chemistry, Multidisciplinary
Saurav Bhattacharya, Andrea Barba-Bon, Tsedenia A. Zewdie, Anja B. Mueller, Talha Nisar, Anna Chmielnicka, Iwona A. Rutkowska, Christian J. Schuermann, Veit Wagner, Nikolai Kuhnert, Pawel J. Kulesza, Werner M. Nau, Ulrich Kortz
Summary: We report the discovery of the first two cationic palladium(II)-oxo clusters (POCs) containing f-metal ions, and investigate their physicochemical characterization. The molecular structure of these novel POCs consists of an octahedral {Pd6O12} core capped by eight M-IV ions, forming a cationic, cubic assembly {Pd6O12M8IV}. We also found that these POCs can form host-guest inclusion complexes with 4-sulfocalix[n]arenes, and can be used as pre-catalysts for electrocatalytic CO2 reduction and HCOOH oxidation.
ANGEWANDTE CHEMIE-INTERNATIONAL EDITION
(2022)
Article
Chemistry, Physical
Iakov S. Fomenko, Olga S. Koshcheeva, Nina I. Kuznetsova, Tatyana V. Larina, Marko I. Gongola, Medhanie Afewerki, Pavel A. Abramov, Alexander S. Novikov, Artem L. Gushchin
Summary: Two new isomeric complexes [CuBr2(R-bian)] (R=4-Me-Ph (1), 2-Me-Ph (2)) were synthesized and characterized. Crystal structure analysis revealed a distorted square-planar environment around the copper atom, with a significant deviation from ideal tetrahedral and square-plane geometries in complexes 1 and 2, respectively. Dimer formation through non-covalent Cu center dot center dot center dot Br interactions was observed in complex 2. Cyclic voltammetry and UV-Vis spectroscopy showed a quasi-reversible Cu(II)/Cu(I) redox event and the presence of Cu(I) species in solution. Both complexes exhibited catalytic activity for the oxidation of isopropylbenzene, with differences in the reaction mechanism and product composition depending on the oxidizing ability of the catalyst.
Article
Chemistry, Inorganic & Nuclear
Daniel Omar Gonzalez-Abrego, Gloria Sanchez-Cabrera, Francisco J. Zuno-Cruz, Jose A. Rodriguez, Jose G. Alvarado-Rodriguez, Noemi Andrade-Lopez, Jorge A. Lopez, Crispin Cristobal, Gerardo Gonzalez-Garcia
Summary: The synthesis and characterization of [Cu(SacNac(Dipp))(PPh3)] (1) and [Pd(SacNac(Dipp))Cl(PPh3)] (2) complexes were achieved, with 1 showing potential as a redox mediator for biosensors. The electrochemical properties of both complexes were studied to evaluate their capability to detect hydrogen peroxide.
INORGANICA CHIMICA ACTA
(2021)
Article
Chemistry, Inorganic & Nuclear
Ariadni Zianna, Ellie Vradi, Antonios G. Hatzidimitriou, Stavros Kalogiannis, George Psomas
Summary: Five neutral zinc(ii) complexes were synthesized and characterized, and the crystal structures of complexes 1 and 3 were determined by single-crystal X-ray crystallography. These compounds exhibit DNA intercalation, moderate DNA cleavage, reversible binding to serum albumins, and antioxidant and antimicrobial activities.
DALTON TRANSACTIONS
(2022)
Article
Chemistry, Multidisciplinary
Jian Luo, Michael. T. T. Davenport, Chad Callister, Shelley. D. D. Minteer, Daniel. H. H. Ess, T. Leo Liu
Summary: In this study, the mechanism of Ni-catalyzed electrochemical aryl amination reactions was investigated through experiments and calculations. The results revealed that the coordination of an amine to the Ni-II catalyst, followed by the generation of a stable Ni-II aryl amido intermediate and reductive elimination, were key steps in the reaction. The findings provide new insights into the mechanism of this reaction and offer guidance for the development of other Ni-catalyzed electrosynthetic reactions.
JOURNAL OF THE AMERICAN CHEMICAL SOCIETY
(2023)
Article
Chemistry, Organic
Hiroki Kato, Yuki Fukuhara, Ryuya Miyazaki, Kei Muto, Junichiro Yamaguchi
Summary: A Pd-catalyzed cyclization/1,4-difunctionalization of bromoarenes bearing a carbon nucleophile with diazo compounds was developed. This reaction proceeds through a pi-benzyl palladium intermediate, which is crucial for the remarkable 1,4-selectivity and provides functionalized indans and tetralins.
ASIAN JOURNAL OF ORGANIC CHEMISTRY
(2023)
Article
Chemistry, Multidisciplinary
Nadia El Alouani Dahmouni, Anna Switlicka, Barbara Machura, Nicolas Moliner, Renato Rabelo, Rafael Ruiz-Garcia, Salah-Eddine Stiriba, Joan Cano, Miguel Julve
Summary: In this paper, we report the synthesis, structural characterization, thermal stability, spectroscopic properties and redox properties of a series of compounds. These compounds exhibit discrete planar complex anions and demonstrate unique thermal stability and redox properties.
Article
Chemistry, Organic
Rajesh Sahu, Saurav Yadav, Krishna Chaitanya Gunturu, Anant R. Kapdi
Summary: Sensing important metals in different environments is vital, and the use of fluorescent sensors in metal sensing is a widely applied method. This study introduces a phenothiazine-based fluorescent sensor for Cu(II) ions, which shows high selectivity compared to other transition metal salts. The Lewis acidity of the Cu(II) salt and a 1:1 ratio were found to enhance the sensing response in MeOH solvent.
JOURNAL OF ORGANIC CHEMISTRY
(2023)
Article
Chemistry, Multidisciplinary
Xiang Ma, Saurav Bhattacharya, Talha Nisar, Anja B. Mueller, Veit Wagner, Nikolai Kuhnert, Ulrich Kortz
Summary: We present the synthesis and structural characterization of the first Pd-IV-containing polyoxopalladate(ii) complex. This discrete mixed-valent polyoxopalladate(iv/ii) features a central Pd-IV ion surrounded by a six-membered Pd-II-oxo ring capped by six dimethylarsinate groups. The structure was analyzed using various techniques in the solid state, solution, and gas phase.
CHEMICAL COMMUNICATIONS
(2023)
Article
Chemistry, Physical
Suphitsara Maturost, Suwaphid Themsirimongkon, Surin Saipanya, Li Fang, Natthapong Pongpichayakul, Jaroon Jakmunee, Paralee Waenkaew
Summary: Pd/xCuO-10CNT (x = 1, 2, 3, 4) catalysts synthesized using an improved polyol method exhibit excellent oxidation performance and electrocatalytic activity, along with stability and CO poisoning tolerance. The insertion of CuO onto the CNT surface provides additional electrochemical active sites, facilitating charge transfer.
INTERNATIONAL JOURNAL OF HYDROGEN ENERGY
(2022)
Article
Chemistry, Physical
Daniel Raydan, Idelys J. Rivas-Lacre, Vito Lubes, Vanessa Landaeta, Lino Hernandez
JOURNAL OF MOLECULAR LIQUIDS
(2020)
Article
Chemistry, Physical
Yurgenis Henriquez, Lino Hernandez, Neudo Urdaneta, Eller Galarraga, Angel Santorelli, Vanessa R. Landaeta, Rafael E. Rodriguez-Lugo, Mary Lorena Araujo, Vito Lubes
Summary: This study involves the synthesis of ligand HL and the investigation of its protonation constants, as well as the investigation of stability constants of binary and ternary nickel-ligand systems. Experimental measurements of stability constants were conducted with various amino acids under different pH conditions, and species distribution diagrams were briefly discussed.
PHYSICS AND CHEMISTRY OF LIQUIDS
(2021)
Article
Chemistry, Physical
Anggie Nobrega, Vanessa R. Landaeta, Rafael Rodriguez-Lugo, Mary Lorena Araujo, Waleska Madden, Lino Hernandez, Vito Lubes
Summary: The impact of various low molecular weight blood serum ligands on the formation of binary and ternary complexes of Cu(II) with 1,10′-phenanthroline was studied using electromotive force measurements and analysis.
PHYSICS AND CHEMISTRY OF LIQUIDS
(2021)
Review
Chemistry, Inorganic & Nuclear
Leonardo Giusti, Vanessa R. Landaeta, Matteo Vanni, John A. Kelly, Robert Wolf, Maria Caporali
Summary: This review comprehensively covers the coordination chemistry of elemental phosphorus during the years 2011-2020, focusing on the activation of white phosphorus mediated by early and late transition metals, as well as the coordination chemistry of the black allotrope of phosphorus and its interaction with transition metals to form new functionalized 2D materials.
COORDINATION CHEMISTRY REVIEWS
(2021)
Review
Pharmacology & Pharmacy
Maribel Navarro, Rodrigo M. S. Justo, Giset Y. Sanchez Delgado, Gonzalo Visbal
Summary: The evaluation of late transition metal complexes for the treatment of Trypanosomatid diseases and some insights about their mechanism of action are provided.
CURRENT PHARMACEUTICAL DESIGN
(2021)
Article
Chemistry, Inorganic & Nuclear
Christian O. Blanco, Ligia Llovera, Alberto Herrera, Romano Dorta, Giuseppe Agrifoglio, Domenico Venuti, Vanessa R. Landaeta, Jesus Pastran
Summary: The synthesis of ruthenium (II) piano-stool complexes with bis-(+)-camphopyrazole ligands and their catalytic performance in the transfer hydrogenation of benzaldehyde and valeraldehyde were evaluated. The complexes showed moderate yields and selectivity when using isopropanol and formic acid as hydrogen donors, with C-2 symmetry ligands outperforming C-1 symmetry ligands in all evaluated systems.
INORGANICA CHIMICA ACTA
(2021)
Article
Chemistry, Physical
Neudo Urdaneta, Eliot Infante, Vanessa R. Landaeta, Rafael Rodriguez-Lugo, Lino Hernandez, Mary Lorena Araujo, Vito Lubes
Summary: In this study, the results of a chemical speciation analysis of binary and ternary complexes formed by Cu(II) with 2-(benzo[d]thiazol-2-yl)nicotinic acid and various amino acids were presented. The analysis was conducted using potentiometric data and the least-squares program LETAGROP under specific conditions.
PHYSICS AND CHEMISTRY OF LIQUIDS
(2022)
Article
Chemistry, Inorganic & Nuclear
Edgar Del Carpio, Maria L. Serrano, Lino Hernandez, Waleska Madden, Vito Lubes, Vanessa R. Landaeta, Rafael E. Rodriguez-Lugo, Giuseppe Lubes, Anita Stern, Carlos Ciangherotti, Lissette Jimenez
Summary: The study found that in solution, copper (II) tends to form ternary complexes with picolinic acid, 6-methylpicolinic acid, and low molecular mass blood plasma components. The biological activity of the isolated binary and ternary complexes exhibited a concentration-dependent effect. Molecular docking studies revealed that the metallic center is essential for generating reversible electrostatic interactions, which may be key to the indirect hypoglycemic effect exhibited by the Cu(Pic)2 complex.
Article
Chemistry, Inorganic & Nuclear
Camila A. S. R. Conde, Mauro De Almeida, Gabrielle dos Santos Da Silva, Milena Barenco Pires de Abreu Sodre, Juliany Cola Fernandes Rodrigues, Maribel Navarro
Summary: A new series of copper- and zinc-diamine complexes were synthesized and showed significant biological activity against Leishmania amazonensis.
TRANSITION METAL CHEMISTRY
(2022)
Article
Chemistry, Physical
Edgar Del Carpio, Maria L. Serrano, Lino Hernandez, Waleska Madden, Vito Lubes, Vanessa R. Landaeta, Rafael E. Rodriguez-Lugo, Giuseppe Lubes, Anita Stern, Carlos Ciangherotti, Lissette Jimenez
Summary: In this study, potentiometric measurements were conducted on ternary complexes of copper(II) with various components of blood plasma, revealing their speciation and antioxidant activity. Docking studies further demonstrated the crucial role of the Cu(II) metal centre in the interaction with the receptor.
PHYSICS AND CHEMISTRY OF LIQUIDS
(2022)
Article
Pharmacology & Pharmacy
Caroline De Souza Pereira, Helenita Costa Quadros, Samuel Yaw Aboagye, Diana Fontinha, Sarah D'Alessandro, Margaret Elizabeth Byrne, Mathieu Gendrot, Isabelle Fonta, Joel Mosnier, Diogo Rodrigo M. Moreira, Nicoletta Basilico, David. L. L. Williams, Miguel Prudencio, Bruno Pradines, Maribel Navarro
Summary: Hybrid-based drugs linked through a transition metal, such as the novel compound [AuAQPQ]PF6, show strong and effective antiplasmodial activity against multiple stages of the Plasmodium life cycle. The compound's mechanism involves inhibiting beta-hematin formation and enzymatic activity of thioredoxin reductases.
Article
Pharmacology & Pharmacy
Gonzalo Visbal, Rodrigo M. S. Justo, Gabrielle dos Santos da Silva e Miranda, Sara Teixeira de Macedo Silva, Wanderley de Souza, Juliany Cola Fernandes Rodrigues, Maribel Navarro
Summary: In this study, a new complex called ZnCl2(H3)(2) was synthesized and evaluated for its efficacy against Leishmania amazonensis. The results showed that this complex exhibited stronger inhibitory effects on the parasite compared to the free ligand H3. Furthermore, it demonstrated higher selectivity. Additionally, the study revealed that H3 could induce depletion of endogenous parasite sterols and their replacement by 24-desalkyl sterols, and the zinc derivative of H3 resulted in a loss of cell viability.
Article
Chemistry, Multidisciplinary
Legna Colina-Vegas, Mariana da Cruz B. Silva, Caroline de Souza Pereira, Ariane Isis Barros, Joaquim Araujo Nobrega, Maribel Navarro, Matthias Rottmann, Sarah D'Alessandro, Nicoletta Basilico, Alzir Azevedo Batista, Diogo R. M. Moreira
Summary: Coordination of metal complexes with antimalarial quinolines shows potential in improving their bioactivity and inhibiting multiple stages of the Plasmodium life cycle.
CHEMISTRY-A EUROPEAN JOURNAL
(2023)
Article
Chemistry, Inorganic & Nuclear
Miguel A. Chacon-Teran, Vanessa R. R. Landaeta, Robert Wolf, Rafael E. E. Rodriguez-Lugo
Summary: A Rh(I) complex with a P,N ligand has been synthesized and characterized. It has been found that this complex can catalyze the 1,2-regioselective hydroboration of pyridines and quinolines with high yield and low catalyst loading.
EUROPEAN JOURNAL OF INORGANIC CHEMISTRY
(2023)
Article
Chemistry, Multidisciplinary
Rodrigo M. S. Justo, Luana Pereira Borba-Santos, Youssef Bacila Sade, Frederico Henrique C. Ferreira, Nathalia M. P. Rosa, Luiz Antonio S. Costa, Gonzalo Visbal, Sonia Rozental, Maribel Navarro
Summary: New copper(I), copper(II), and zinc(II) azasterol derivatives were synthesized using 20-hydrazone-imidazolin-2-yl-5 alpha-pregnan-3 beta-ol (H1) as a ligand. The metal complexes were fully characterized and their molecular structures were investigated using computational methods. In vitro antifungal tests showed that the metal-azasterol complexes were more effective against S. brasiliensis than the ligand H1, with [Zn(H1)(2)(OH)(2)] demonstrating the highest efficiency. These results suggest the potential of metal-azasterol complexes in developing new antifungal compounds.
NEW JOURNAL OF CHEMISTRY
(2021)
Article
Chemistry, Physical
Ming-Yi Chen, Ngoc Thanh Thuy Tran, Ahmed Abubakar Alao, Wen-Dung Hsu
Summary: This study demonstrates the significance of surface Pt atom arrangement for the efficiency of ORR in PEMFCs and reveals the correlation between Pt-Pt average distance and O2 dissociation barrier. Furthermore, the study discovers a robust correlation between the level of the catalyst's d-band center and O2 adsorption energy. High-entropy alloy substrates provide potential for controlling Pt arrangement and O2 dissociation barrier.
APPLIED CATALYSIS A-GENERAL
(2024)
Article
Chemistry, Physical
Eduardo C. Atayde Jr, Babasaheb M. Matsagar, Yu-Cheng Wang, Kevin C. -W. Wu
Summary: This study presents the first application of an acidic MOF, Sulfated MOF-808, in catalyzing the HAA reactions of furan oligomers for the production of biofuel precursors. The catalyst showed high yield, selectivity, and recyclability, making it versatile for different starting materials.
APPLIED CATALYSIS A-GENERAL
(2024)
Article
Chemistry, Physical
Maria do Carmo Rangel, Francieli Martins Mayer, Soraia Jesus de Oliveira, Sergio Gustavo Marchetti, Fabricio Luiz Faita, Doris Ruiz, Giovanni Saboia, Mariana Kieling Dagostini, Jonder Morais, Maria do Carmo Martins Alves
Summary: This study developed a new catalyst by investigating the effect of magnesium on the catalytic properties of hematite in ethylbenzene dehydrogenation. The catalyst showed important differences in activity, selectivity, and stability, making it a promising candidate for commercial applications.
APPLIED CATALYSIS A-GENERAL
(2024)
Article
Chemistry, Physical
Yanjun Li, Qian Wang, Hui Tian, Mingyuan Zhu, Yuanyuan Liu
Summary: A novel strategy using microwave-assisted precipitation was proposed to prepare defective CsH3PMo11VO40 catalyst for the oxidation of methacrolein to methacrylic acid. Microwave treatment accelerates crystallization, increases vanadyl species content, and forms defective Keggin structures, thereby enhancing the oxidation capacity of the catalyst.
APPLIED CATALYSIS A-GENERAL
(2024)
Article
Chemistry, Physical
Rajeshwari Athavale, Sailee Gardi, Fatima Choudhary, Dayanand Patil, Nandkishor Chandan, Paresh More
Summary: In this study, a novel acidic ionic liquid catalyst was prepared and used for the synthesis of bis-indolyl methane derivatives. The catalyst exhibited short reaction times, easy purification, and reusability.
APPLIED CATALYSIS A-GENERAL
(2024)
Article
Chemistry, Physical
Masatomo Hattori, Takato Hattori, Masakuni Ozawa
Summary: Cu-added gamma-Al2O3 catalysts were prepared with varying Cu loadings and the effects of copper oxidation states on catalytic activity were investigated. The results showed that the addition of copper increased the catalyst activity, but excessive copper loading decreased catalytic activity. XRD and TEM analysis indicated the formation of a solid solution of copper oxide species on the surface of gamma-Al2O3. XAS and TPR data demonstrated variations in copper oxidation states among the catalysts.
APPLIED CATALYSIS A-GENERAL
(2024)
Article
Chemistry, Physical
Liwei Fang, Shiyang Niu, Shengsen Wang, Yiqing Lu, Yuanhui Cheng
Summary: In this study, PtNi alloy on nitrogen-doped carbon and SnO2 dual-support was designed to modulate the metal-support interaction, resulting in improved catalytic activity and stability for oxygen reduction reaction. The SnO2/PtNi/NC catalyst exhibited a strongly coupled interface, enhanced electron transfer, and higher half-wave potential compared to PtNi/NC and commercial Pt/C.
APPLIED CATALYSIS A-GENERAL
(2024)
Article
Chemistry, Physical
Shohei Harada, Duanxing Li, Kenta Iyoki, Masaru Ogura
Summary: This study investigates the catalytic performance of a composite catalyst composed of ZnZrOX and H-zeolite for the hydrogenation of CO2. The deactivation of the composite catalyst is influenced by ion exchange of Zn2+ and/or coke, with their effects differing based on the zeolite structure. Separating the grains of the composite catalyst can prevent deactivation.
APPLIED CATALYSIS A-GENERAL
(2024)
Article
Chemistry, Physical
Laura Proano, Christopher W. Jones
Summary: In this study, NiGa alloy particles supported on CeO2, ZrO2, and ZrO2-CeO2 solid solutions were prepared and characterized. The nature of the support was found to have a significant influence on the catalyst's activity and selectivity, with the crystalline structure of ZrO2 having the greatest impact. Pure ZrO2 showed the highest methanol selectivity and CO2 conversion at high Zr:Ce ratios. In equimolar and Ce-rich conditions, basic sites and oxygen vacancies were found to be the key parameters affecting methanol production.
APPLIED CATALYSIS A-GENERAL
(2024)
Article
Chemistry, Physical
Liyan Zhang, Yinze Yang, Leilei Zhou, Fengyu Zhao, Haiyang Cheng
Summary: 1,6-Hexamethylenediamine was successfully synthesized via the reductive amination of 1,6-hexanediol using a Ru/PRL(x)-Al2O3 catalyst. The highly dispersed and anchored Ru species, formed by 1,10-phenanthroline (PRL), played a crucial role in the catalytic reaction. The formation of new acid-base pairs, electron deficient Ru species, and smaller nanoparticles contributed to the improved catalytic performances of the Ru/PRL-Al2O3 catalyst.
APPLIED CATALYSIS A-GENERAL
(2024)
Article
Chemistry, Physical
Anita Horvath, Miklos Nemeth, Andrea Beck, Gyorgy Safran, Valeria La Parola, Leonarda Francesca Liotta, Gregor Zerjav, Matevz Roskaric, Albin Pintar
Summary: This study investigates the catalytic and structural changes caused by the addition of 0.25 wt% indium in a 3% Ni/CeO2-Al2O3 catalyst prepared by impregnation method. The results show that the addition of indium can decrease the activity of the catalyst, but it improves its stability and reduces coking.
APPLIED CATALYSIS A-GENERAL
(2024)
Article
Chemistry, Physical
Ankush Kularkar, Vaibhav Vilas Khedekar, Sachin D. Chaudhari, Mudavath Ravi, Sadhana S. Rayalu, Penumaka Nagababu
Summary: Efficiently addressing the challenges of photocatalytic CO2 reduction to CH3OH is crucial. This study developed Zn-BTC MOF and its composites with CaIn2S4, achieving highly efficient and robust photocatalytic CO2 reduction to CH3OH under ambient conditions, using H2O2 as the hydrogen source. Among the composites, ZMCIS4 demonstrated excellent performance with a CH3OH evolution of 49100 μmol/g.cat and a quantum efficiency of approximately 78.41%. The enhanced performance was attributed to the production of nascent hydrogen atoms (H center dot) through the photo-splitting of H2O2 on the ZMCIS surface.
APPLIED CATALYSIS A-GENERAL
(2024)
Article
Chemistry, Physical
Dan Liu, Yudong Li, Chengyu Wang, Haiyue Yang, Rong Wang, Shujun Li, Xiaohui Yang
Summary: In this study, a self-supporting three-dimensional porous Co3O4 nanobelt array decorated on nickel foam (P-Co3O4 -NBA@NF) electrode with numerous active sites was successfully constructed for the oxidation of 5-Hydroxymethylfurfural (HMF) to 2,5-furan dicarboxylic acid (FDCA). The P-Co3O4 -NBA@NF electrode demonstrated high conversion efficiency, selectivity, and Faraday efficiency, as well as remarkable long-term stability. This research provides a promising electrocatalyst for biomass conversion.
APPLIED CATALYSIS A-GENERAL
(2024)
Article
Chemistry, Physical
Yimin Li, Enggah Kurniawan, Fumiya Sato, Takayoshi Hara, Yasuhiro Yamada, Satoshi Sato
Summary: In this study, several silica-alumina catalysts modified with Ag were examined for the dehydration of 1,3-butanediol to 1,3-butadiene. Among them, an amorphous silica-alumina catalyst (SAL-3) modified with Ag showed the highest improvement in catalytic activity and stability when operated in H2 flow. The generation of reversible acid sites was found to be the reason behind the enhanced activity and stability of this Ag/SAL-3 catalyst. The effects of various parameters on the catalytic activity of Ag/SAL-3, such as reaction temperature, contact time, Ag content, and carrier gas, were investigated.
APPLIED CATALYSIS A-GENERAL
(2024)
