Results 81 to 90 of about 16,483 (254)

Complex Pt/Al2O3 materials for small catalytic systems [PDF]

, 2007
This paper reports on the preparation of catalytic materials composed of a porous metallic preform containing winding microchannels whose surface is coated by a complex catalytic film. Al2O3 is deposited inside the pores by means of wet impregnation in a
Alphonse, Pierre, Armand, Claude, Christoglou, Christos, Desnoyer, Christophe, Vahlas, Constantin   +4 more
core   +3 more sources

Entropy‐Controlled Exsolution of Highly Dispersed Nickel‐Based Active Metals From Spinel Oxide via Optimizing Metal‐Support Interaction for Dry Reforming of Methane

Carbon Energy, Volume 8, Issue 2, February 2026.
The incorporation of transition‐metal elements into spinel oxides results in enhanced configurational entropy and increased metal‐support interaction, which continuously modulate the exsolution of nickel‐based active metal. The highly dispersed nickel‐based metal catalyst, formed through the entropy‐controlled strategy, demonstrates remarkable activity
Yuxuan Meng, Yuefan Tuo, Yao Xue, Xiaofeng Yan, Zhengkun Luo, Qianrui Yang, Stanislav Chernyshikhin, Yilong Yan, Meng Lin, Yufei Zhao, Xianguang Meng   +10 more
wiley   +1 more source

The Application of Thermal Solar Energy to High Temperature Processes: Case Study of the Synthesis of Alumina from Boehmite

The Scientific World Journal, 2014
The aim of this paper is to evaluate the feasibility of obtaining alumina from boehmite using a free, clean, and unlimited power source as the solar energy.
Isabel Padilla, Aurora López-Delgado, Sol López-Andrés, Marta Álvarez, Roberto Galindo, Alfonso J. Vazquez-Vaamonde   +5 more
doaj   +1 more source

Cu(II) and Gd(III) doped boehmite nanostructures: a comparative study of electrical property and thermal stability

Materials Research Express, 2020
The present article reports the effect of transition (Cu ^2+ ) and rare earth metal (Gd ^3+ ) ion doping on structural, microstructural and electrical properties of boehmite nanoparticles.
Shubham Roy, Souravi Bardhan, Dipak Kr Chanda, Anupam Maity, Saheli Ghosh, Dhananjoy Mondal, Subhankar Singh, Sukhen Das   +7 more
doaj   +1 more source

High surface area, nanostructured boehmite and alumina catalysts: Synthesis and application in the sustainable epoxidation of alkenes

Applied Catalysis A: General, 2019
We report a new, straightforward and inexpensive sol-gel route to prepare boehmite nanorods [gamma-AlO(OH)-NR] with an average length of 23 nm +/- 3 nm, an average diameter of 2 nm +/- 0.3 nm and a high specific surface area of 448 m(2)/g, as evidenced ...
Warunee Lueangchaichaweng, Bhawana Singh, D. Mandelli, W. Carvalho, S. Fiorilli, P. Pescarmona   +5 more
semanticscholar   +1 more source

Development and Characterization of 3d‐Printed Chitosan‐Copper Catalytic Supports for the Conversion of Biomass‐Derived Products

Macromolecular Materials and Engineering, Volume 311, Issue 2, February 2026.
This study reports the fabrication of bio‐based 3D‐printed chitosan‐copper catalysts via masked stereolithography (MSLA). The resulting materials exhibit uniform metal distribution, good structural and thermal stability, and catalytic activity in the oxidation of biomass‐derived benzyl alcohol to benzaldehyde, demonstrating a sustainable and efficient ...
Erika Blânzeanu, Derniza‐Elena Cozorici, Ionuț‐Cristian Radu, Minodora Marin, Marian Nicolae Verziu, Anca Dumitru, Bogdan Ștefan Vasile, Horia Iovu, Rafael Luque, Cătălin Zaharia   +9 more
wiley   +1 more source

Efficient Selective Adsorption of Anionic Dyes by Modified Activated Alumina Spheres

Asia-Pacific Journal of Chemical Engineering, Volume 21, Issue 1, January/February 2026.
ABSTRACT The persistent environmental threat from dye‐contaminated industrial wastewater necessitates advanced remediation solutions. Hydrochloric acid–modified activated alumina spheres (HAAs) are presented as efficient adsorbents for anionic dye removal.
Ziwei Bai, Li Li, Jintao Wang, Demei Xu, Kai Zhang, Xinyu Huang, Qingyan Cheng, Lihui Zhang   +7 more
wiley   +1 more source

Low-temperature sintering of boehmite ceramics utilizing a hydraulic alumina precursor and the enhancement of mechanical properties by α-Al2O3 compounding

Journal of Asian Ceramic Societies
The conventional manufacturing processes of ceramics involve high-temperature sintering at temperatures above 1000 °C. Therefore, current research is focused on low-temperature sintering methods to reduce energy consumption and carbon dioxide emissions ...
Natsuki Sato, Tatsuro Yoshioka, Naoki Kurizoe, Yeongjun Seo, Tomoyo Goto, Tohru Sekino   +5 more
doaj   +1 more source

Ceramic nanostructure materials, membranes and composite layers [PDF]

, 1989
Synthesis methods to obtain nanoscale materials will be briefly discussed with a focus on sol-gel methods. Three types of nanoscale composites (powders, membranes and ion implanted layers) will be discussed and exemplified with recent original research ...
Burggraaf, A.J., Hassel, B.A. van, Keizer, K.   +2 more
core   +3 more sources

Room-temperature fabrication of magnetite-boehmite sol-gel composites for heavy metal ions removal

, 2020
Magnetite-boehmite porous ceramic composites were synthesized from magnetite and boehmite hydrosols in a course of room-temperature sol-gel transition.
O. E. Shapovalova, A. Drozdov, Ekaterina A. Bryushkova, M. Morozov, V. Vinogradov   +4 more
semanticscholar   +1 more source