Results 41 to 50 of about 34,179 (313)

Designing Polymer Nanocomposites for X‐Ray Shielding: Mechanisms, Architectures, and Scalable Processing

Advanced Engineering Materials, EarlyView.
This review highlights advances in lightweight, lead‐free polymer nanocomposites for diagnostic X‐ray shielding. By linking filler chemistry, dispersion, architecture, and photon interaction mechanisms, it establishes structure–performance relationships guiding material design.
Aklilu G. Messele, Hossein Ipakchi, Tizazu H. Mekonnen   +2 more
wiley   +1 more source

In Situ Preparation of CeO2/Bi2WO6 Nano Composite and Its Brilliant Catalytic Activity for Reduction of Dye Pollutants, Chromium (Vi), 4-Nitrophenol and 4-Nitroaniline [PDF]

Iranian Journal of Chemistry & Chemical Engineering
The CeO2/Bi2WO6 nanocomposite was synthesized using sonochemical and hydrothermal methods. It was studied for its catalytic activity in reducing 4-nitrophenol (4-NP), 4-nitroaniline (4-NA), chromium (VI), rhodamine B(RhB) and Methylene Blue (MB) in ...
Ahmad Amani, Zohreh Derikvand, Mohammad Ghadermazi   +2 more
doaj   +1 more source

Catalytic Hydrogenation of Succinic Acid Using Materials of Fe/CeO2, Cu/CeO2 AND Fe-Cu/CeO2

Croatica Chemica Acta
La réaction d'hydrogénation de l'acide succinique en phase liquide a été étudiée en utilisant les catalyseurs métalliques supportés, Fe/CeO2, Cu/CeO2 et Fe-Cu/CeO2. Le support CeO2 a été préparé par la méthode de précipitation et les solides métalliques supportés par imprégnation à sec du support. Pour les solides monométalliques, un pourcentage de fer
Alexis Lorenzo Ruíz, Claudia Patricia Castañeda Martínez, Eleida Sosa, Corina Iris Rodríguez, Sonia Mancípe, José Javier Pérez-Fadón Martínez, María H. Brijaldo, Hugo Rojas   +7 more
openaire   +2 more sources

The nature of oxygen states on the surfaces of CeO2 and La-doped CeO2 [PDF]

Chemical Physics Letters, 2014
Abstract The oxygen states on CeO 2 surfaces were investigated with DFT +  U calculations. The results reveal the variable nature of the oxygen states, including the never before modeled intrinsic peroxide surface defect. Under O-rich conditions, the peroxide defects on the (1 0 0) and (1 1 0) surfaces is more stable than oxygen vacancies.
Patrick R.L. Keating, David O. Scanlon, Graeme W. Watson   +2 more
openaire   +3 more sources

The Effect of Different Molar Ratios of CeO2 on Photoluminescence Properties of CeO2/TiO2 Nanoparticles

Indian Journal of Pure & Applied Physics, 2023
The CeO2-TiO2 nanoparticles were prepared by a combination of hydrothermal and sol-gel preparation methods. The bond structures and crystal properties of the obtained materials were featured with X-ray diffraction, FTIR, Raman, and Bet analysis; surface morphologies were examined with the help of FESEM and STEM.
Dokan, Fatma Kılıç, Kuru, Mehmet, Torun, Handan Özlü, Öztürk, Esra   +3 more
openaire   +2 more sources

Tuning Amorphous‐Crystalline Catalytic Interfaces by Mechanochemistry: Cu‐Based Metallic Glasses Coupled with Ceria for CO Oxidation

Advanced Materials, EarlyView.
Ball‐milling Cu‐based metallic glasses with ceria creates a unique nanostructure where metallic glass particles are wrapped by CeO2 nanoparticles. The intimate integration triggers copper state reorganization during reaction and aging, boosting CO oxidation and COPrOx activity.
Maahin Mirzay‐Shahim, Mehran Nabahat, Laia Pascua‐Solé, Isabel Serrano, Ilaria Lucentini, Xènia Garcia, Marina Armengol‐Profitós, Asier Agrelo‐Lestón, Ignasi Burgués‐Ceballos, Núria J. Divins, Ignacio J. Villar‐Garcia, Virginia Pérez‐Dieste, Carlos Escudero, Carlo Marini, Jordi Llorca, Eloi Pineda, Pere Bruna, Lluís Soler   +17 more
wiley   +1 more source

Controlled synthesis and properties of porous Cu/CeO2 microspheres

, 2015
Porous Cu/CeO2 microspheres were synthesized in a system of (NH4)2 Ce(NO3)6/CuSO4ethanol (EtOH)/ H2ON,N-dimethylformanide (DMF) via a low-temperature hydrothermal route as well as a subsequent calcination.
Yao, Xiang, Chen, Jun, Xu, Pengfei, Yang, Xiaodan, Yu, Ranbo, Xing, Xianran   +5 more
core   +1 more source

Advancing Lithium–Oxygen Batteries: Pioneering Cathode Catalyst Innovation and Artificial Intelligence‐Driven Design Paradigms

Advanced Materials, EarlyView.
This review summarizes the principles and challenges of nonaqueous lithium‐oxygen batteries and recent advances in cathode catalysts, including carbon‐based materials, metals, oxides, sulfides, nitrides, carbides, and redox mediators. It highlights emerging design strategies and artificial intelligence‐driven approaches, emphasizing data‐assisted ...
Yuqing Yao, Chongyang Hao, Karol Viviana Mejia‐Centeno, Malik Dilshad Khan, Shang Wang, Longqiu Li, Yanhong Tian, Andreu Cabot, Qing Sun   +8 more
wiley   +1 more source

Síntese e caracterização de catalisadores óxidos metálicos para oxidação catalítica total de BTX (benzeno, tolueno e orto-xileno) e transformação química de monoterpenos [PDF]

, 2014
Tese (doutorado) - Universidade Federal de Santa Catarina, Centro de Ciências Físicas e Matemáticas, Programa de Pós-Graduação em Química, Florianópolis, 2014.A pesquisa sobre o desenvolvimento de novas tecnologias que possibilitem a substituição das ...
Balzer, Rosana
core  

Co1/Ru Single‐Atom Alloy Catalyst for Sustainable Polypropylene Hydrogenolysis to Long‐Chain Liquid Products

Advanced Materials, EarlyView.
A titania‐supported Co1/Ru single‐atom alloy catalyst enables efficient polypropylene hydrogenolysis. Ru─Co─Ru motifs maintain Ru activity while suppressing excessive chain scission to gaseous products. Both virgin and waste plastics achieve high, environmentally and economically optimal C11+ liquid yields, supporting sustainable chemical recycling ...
Yuzhen Ge, Yimeng Jin, Alexandra Krestnikova, Sibei Zou, Antonio J. Martín, Gonzalo Guillén‐Gosálbez, Javier Pérez‐Ramírez   +6 more
wiley   +1 more source