Article
Chemistry, Physical
Akihiro Nakayama, Ryusei Sodenaga, Yuvaraj Gangarajula, Ayako Taketoshi, Toru Murayama, Tetsuo Honma, Norihito Sakaguchi, Tetsuya Shimada, Shinsuke Takagi, Masatake Haruta, Botao Qiao, Junhu Wang, Tamao Ishida
Summary: Cation-and anion-substituted hydroxyapatites (sHAPs) supported gold catalysts exhibit strong metal support interaction (SMSI) under oxidative atmosphere, enhancing the cationic properties of gold and increasing catalytic activity. Controlling the degree of SMSI allows for tuning the electronic state of metal nanoparticles and providing highly active and durable catalysts for target reactions.
JOURNAL OF CATALYSIS
(2022)
Article
Chemistry, Physical
Charlie B. Paris, Alexander G. Howe, Richard James Lewis, Daniel Hewes, David J. Morgan, Qian He, Jennifer K. Edwards
Summary: Sol immobilization is a method used to produce bimetallic catalysts with higher activity. The surface functionality of the activated carbon support is altered during acid exposure, and the deposition of polymer protected nanoparticles is influenced by the acid addition step in the sol immobilization process.
Article
Chemistry, Applied
Ye Ji Kim, Seo Yeon Heo, Woon Jin Jang, Suk Joong Lee
Summary: A photothermally active metal oxide catalyst consisting of SBA-15 containing MgO deposited on GO was designed and synthesized for the decomposition of DMNP. The catalyst showed excellent stability and reactivity, achieving a fast reaction rate under infrared light irradiation. The material demonstrated high stability and potential for catalytic decomposition of nerve agents when combined with photothermal materials.
MICROPOROUS AND MESOPOROUS MATERIALS
(2023)
Article
Multidisciplinary Sciences
Rasha A. Abo-Elmagd, Ragaa A. Hamouda, Mervat H. Hussein
Summary: This study investigated the phycotoxicity of OG-AgNPs on freshwater microalgae and revealed a significant inhibitory effect on cell growth and photosynthetic pigments. It also showed that OG-AgNPs have catalytic activity in reducing hydrogen peroxide, which could be useful in various domains such as medical and industrial processes.
SCIENTIFIC REPORTS
(2022)
Article
Chemistry, Multidisciplinary
Peng Hu, Shuang Zhao, Jiahua Shi, Fan Li, Shaochen Wang, Ying Gan, Lei Liu, Shuling Yu
Summary: A dual-responsive HMPDA@Cu2-xSe cascade catalytic nanoplatform was constructed for efficient photothermal therapy and controlled drug release. The nanoplatform showed significant tumor cell inhibition effect in vitro and in vivo, demonstrating its potential for effective multi-modal combination therapy for tumors.
Article
Chemistry, Analytical
Xiang-Yu Xiao, Zong-Yin Song, Pei-Hua Li, Shi-Hua Chen, Li-Na Li, Meng Yang, Chu-Hong Lin, Xing-Jiu Huang
Summary: The study successfully stabilizes Au-25 nanoclusters on Fe2O3 nanoplates, forming Au-25/OV-Fe2O3 with superhigh electrochemical reduction catalytic activity, breaking sensitivity records and offering promising applications in the analysis of organic and bioactive substances. The Au-Fe bond and S atoms in Au-25 nanoclusters play important roles in the reduction of As(III). The fantastic stability and catalytic ability of Au-25/OV-Fe2O3 provide guidelines for stabilizing Au nanoclusters on metal oxides.
ANALYTICAL CHEMISTRY
(2021)
Article
Chemistry, Physical
Alexandra Barnes, Richard J. Lewis, David J. Morgan, Thomas E. Davies, Graham J. Hutchings
Summary: The introduction of low concentrations of copper can enhance the catalytic activity of AuPd nanoparticles towards the synthesis of H2O2, but a higher loading of copper inhibits the performance. Electronic modification and structural changes are the main factors improving the catalyst performance.
Article
Chemistry, Applied
Feng Hong, Shengyang Wang, Junying Zhang, Junhong Fu, Qike Jiang, Keju Sun, Jiahui Huang
Summary: Gold catalysts have shown lower catalytic activity in chemoselective hydrogenation reactions compared to platinum group metals, but this study demonstrates that chemoselective hydrogenation activity can be enhanced by up to 3.3 times through the hydrogen reduction strategy on Au/TiO2 catalysts. Strong metal-support interaction between gold nanoparticles and TiO2 support is introduced through hydrogen reduction, partially dispersing reduced TiOx on the Au surface and benefiting H-2 activation.
CHINESE JOURNAL OF CATALYSIS
(2021)
Article
Chemistry, Inorganic & Nuclear
A. Edwin Vasu, A. P. Mary Sri Archana, A. Christopher Sagayaraj, F. Fabiyan Reymond, V. Antony Jasmine, A. Tony Elizabeth
Summary: This study attempts to utilize biofluids available in plant biomass for uniform distribution of metal cation into carbonaceous precursor, exemplified by ferric in banana leaf sheath. The magnetic iron-oxide nanoparticles incorporated carbon composite prepared by this method shows higher magnetic saturation. The composites can be used as catalysts for the degradation of tetracycline antibiotics.
INORGANIC CHEMISTRY COMMUNICATIONS
(2022)
Article
Chemistry, Physical
Yifan Sun, Zhenzhen Yang, Sheng Dai
Summary: Strong metal-support interaction (SMSI) plays a crucial role in heterogeneous catalysis, and recent advancements have led to the development of novel catalytic systems beyond the traditional Pt-TiO2 catalyst. Characterization techniques at different scales have been used to unravel the structural complexity of SMSI. Synthesis strategies utilizing chemical, photonic, and mechanochemical driving forces have expanded the definition and application of SMSI. Precise structure engineering has allowed for a better understanding of the interface, entropy, and size effect on the geometric and electronic characteristics. The exploration of metal-support interactions holds immense potential for enhancing catalytic activity, selectivity, and stability.
JOURNAL OF PHYSICAL CHEMISTRY LETTERS
(2023)
Article
Chemistry, Physical
Yifan Sun, Zhenzhen Yang, Sheng Dai
Summary: Strong metal-support interaction (SMSI) has a significant impact on the performance of heterogeneous catalysts. Recent development in nonclassical SMSIs has led to novel and advantageous catalytic systems. The structural complexity of SMSI requires multiple characterization techniques at different scales.
JOURNAL OF PHYSICAL CHEMISTRY LETTERS
(2023)
Article
Chemistry, Physical
Qui Quach, Erik Biehler, Ahmed Elzamzami, Clay Huff, Julia M. Long, Tarek M. Abdel-Fattah
Summary: Research indicates that the hydrolysis reaction of an aqueous hydride precursor, combined with gold nanoparticles as a catalyst, can effectively produce hydrogen gas. The catalyst performed best at 303K, generating 1.377 mL min(-1) of hydrogen, and showed stability in reusability trials.
Article
Multidisciplinary Sciences
Luca Bruno, Mario Scuderi, Francesco Priolo, Luigi Falciola, Salvo Mirabella
Summary: Bimetallic decoration of semiconductor electrodes improves catalytic and sensing performances. Au, Pd and Au@Pd nanoparticles were synthesized and characterized. The decorated electrodes show higher redox currents and a shift in redox peaks. The presence of bimetallic nanoparticles enhances the electrochemical performances of the material.
SCIENTIFIC REPORTS
(2023)
Article
Polymer Science
Xin Wang, Xuhong Guo, Martien Cohen A. Stuart, Junyou Wang, Peng Ding
Summary: In this study, cationic polyelectrolyte nanogels were successfully synthesized by Electrostatic Assembly Directed Polymerization (EADP) method and used to load gold nanoparticles (AuNPs). The catalytic activity of the loaded AuNPs was found to be dependent on the crosslinking degree of the nanogels, but independent on the nanogel size. This demonstrates the potential of polyelectrolyte nanogels for developing functional nanoreactors.
Article
Chemistry, Multidisciplinary
Hao Chen, Zhenzhen Yang, Xiang Wang, Felipe Polo-Garzon, Phillip W. Halstenberg, Tao Wang, Xian Suo, Shi-Ze Yang, Harry M. Meyer, Zili Wu, Sheng Dai
Summary: This study demonstrated a photochemistry-driven method for constructing SMSI under ambient conditions, encapsulating Pd nanoparticles with a TiOx overlayer and enhancing catalytic hydrogenation efficiency through UV irradiation.
JOURNAL OF THE AMERICAN CHEMICAL SOCIETY
(2021)
Review
Chemistry, Multidisciplinary
Dan He, Yawen Li, Fuwen Zhao, Yuze Lin
Summary: High trap density in organic solar cells leads to localized charge carriers and reduced carrier lifetime, limiting device efficiency. This feature article summarizes the recent advances of trap suppression by material design and device engineering.
CHEMICAL COMMUNICATIONS
(2024)
Review
Chemistry, Multidisciplinary
Olivier Monfort, Arshitha Madhusudhan, Martin Motola
Summary: This article presents the advantages of coupling photocatalysis and Fenton-based processes for environmental remediation and discusses their synergy. It critically examines the simultaneous triggering of these two processes and provides insights into research approaches. The study aims to enhance understanding of this complex process and highlight the potential integration of new catalysts in current wastewater treatment technology.
CHEMICAL COMMUNICATIONS
(2024)
Article
Chemistry, Multidisciplinary
Manideepa Dhar, Chittaranjan Mishra, Avijit Das, Uttam Manna
Summary: An approach of 'polymerization of monomers in its aggregated form' has been introduced to tailor the water wettability of fibrous and porous substrates, achieving hydrophobicity to superhydrophobicity transition, as well as patterned wettability. This facile chemical method provides a durable coating with adjustable and patterned wettability for various potential applications.
CHEMICAL COMMUNICATIONS
(2024)
Article
Chemistry, Multidisciplinary
Saswat Ranjan Bhoi, Chhanda Debnath, Shikha Gandhi
Summary: In this article, a novel catalytic reaction using Pd(0) and Bronsted acid is reported for the synthesis of biologically important imidazolidinone-fused N-heterocycles through redox-neutral intramolecular N-allylation of indoles and pyrroles with alkynes. This atom-economical method is applicable to a wide range of substrates and eliminates the need for leaving groups or oxidizing agents commonly used in traditional allylation reactions.
CHEMICAL COMMUNICATIONS
(2024)
Article
Chemistry, Multidisciplinary
Longkun Chen, Mingshuai Zhang, Meichen Liu, Zhuoyuan Liu, Yuetong Qiu, Zhilai Zhang, Fuchao Yu, Jiuzhong Huang
Summary: In this study, an efficient Rh(III)-catalyzed selective mono- and dual-C-H bond functionalization/cyclization with iodonium ylide as the sole coupling partner was demonstrated. Fused benzodiazepine skeletons were obtained in excellent yields, providing an improved approach to dual C-H unsymmetrical functionalization.
CHEMICAL COMMUNICATIONS
(2024)
Article
Chemistry, Multidisciplinary
Alice Kennett, Sven Epple, Gabriella van der Valk, Irene Georgiou, Evelyne Gout, Romain R. Vives, Angela J. Russell
Summary: This study presents the design and synthesis of sulfated disaccharide inhibitors based on IdoA(2S)-GlcNS(6S), which showed potent inhibition of Sulf-2. The results suggest that IdoA(2S)-GlcNS(6S) is the shortest fragment size required for effective inhibition of Sulfs, and a trisulfated disaccharide is identified as the minimal fragment size of heparan sulfate for effective endosulfatase inhibition.
CHEMICAL COMMUNICATIONS
(2024)
Article
Chemistry, Multidisciplinary
Mauro Garbini, Andrea Brunetti, Riccardo Pedrazzani, Magda Monari, Massimo Marcaccio, Giulio Bertuzzi, Marco Bandini
Summary: The self-adaptability of galvanostatic electrolysis was found to be helpful in a multistage chemo- and diastereoselective electrochemically promoted cyclodimerization of chalcones. Through a series of reductive events, densely functionalized cyclopentanes with five contiguous stereocenters were obtained (25 examples, yields up to 95%, dr values up to >20:1). Further experimental and electrochemical investigations indicated the crucial role of dynamic kinetic resolution of the aldol intermediate in the reaction mechanism.
CHEMICAL COMMUNICATIONS
(2024)
Article
Chemistry, Multidisciplinary
Dhananjay S. Nipate, Neha Meena, Prakash N. Swami, Krishnan Rangan, Anil Kumar
Summary: In this study, the synthesis of functionalized benzo[a]phenazines and indazolo[2,3-a]quinolines was achieved through Rh(III)-catalyzed oxidative annulation of 2-arylquinoxalines and 2-aryl-2H-indazoles with allyl alcohols. The method showed a wide substrate scope, excellent functional group tolerance, good to high yields of annulated products, and the capability for scaled-up synthesis. A tentative mechanism of the annulation reaction was proposed based on a preliminary mechanistic investigation.
CHEMICAL COMMUNICATIONS
(2024)
Article
Chemistry, Multidisciplinary
Ruonan Zhang, Abudukadi Tudi, Xia Yang, Xuping Wang, Zhihua Yang, Shujuan Han, Shilie Pan
Summary: A new lead tellurium borate material with a unique fundamental building block [B4O10] was synthesized and found to exhibit high birefringence. The structure-property relationship was discussed using first-principles calculations.
CHEMICAL COMMUNICATIONS
(2024)
Article
Chemistry, Multidisciplinary
Amresh Kumar Singh, Baishali Thakurta, Anupam Giri, Monalisa Pal
Summary: This study introduces three key concepts for the quick synthesis of large-scale high-quality 2D materials films and their utilization in device fabrication.
CHEMICAL COMMUNICATIONS
(2024)
Article
Chemistry, Multidisciplinary
Reina Hagiwara, Shun Nishimura, Kosuke Okeyoshi
Summary: A copolymer-conjugated nanocatalytic system has been developed to improve electron transfer and enhance photoinduced H2 generation.
CHEMICAL COMMUNICATIONS
(2024)