Results 121 to 130 of about 243,983 (286)

Tubular MFI Zeolite Membranes Made by In-Situ Crystallization [PDF]

Iranian Journal of Chemistry & Chemical Engineering, 2012
Polycrystalline MFI zeolite membranes were prepared on α-alumina tubular support by hydrothermal treatments at 413 K. The synthesized zeolite membranes were characterized by XRD, SEM and single gas permeation.
Akram Kazemzadeh, Behruz Bayati, Neda Kalantari, Ali Akbar Babaluo   +3 more
doaj  

Effect of the NH4NO3 Addition on the Low-T NH3-SCR Performances of Individual and Combined Fe- and Cu-Zeolite Catalysts [PDF]

, 2019
Roberta Villamaina, Isabella Nova, Enrico Tronconi, Teuvo Maunula, M. Keenan   +4 more
openalex   +1 more source

Conductivity of Mono- and Divalent Cations in the Microporous Zincosilicate VPI-9 [PDF]

, 2009
Impedance spectroscopy is used to investigate the long-range ionic conductivity of the microporous, zincosilicate VPI-9 (Si/Zn = 4.0) (International Zeolite Association framework type VNI) containing the alkali cations Li^+, Na^+, K^+, Rb^+, and Cs ...
Davis, Mark E., McKeen, John C.
core   +1 more source

Advancing Direct Alcohol Fuel Cells: Innovations in Composite‐Based Electrocatalysts and Polymer Support Materials for Enhanced Efficiency

Advanced Energy and Sustainability Research, EarlyView.
This graphical abstract emphasizes the working principle and the various essential factors of the direct methanol fuel cell (DMFCs). Additionally, various parameters, such as the nanoparticle's size and shape, the nature of the electrolyte, the type of support materials, and their fabrication process, also play essential roles in the functioning of the
Kirti Mishra, Samarjeet Singh Siwal, Phil Hart, Vijay Kumar Thakur   +3 more
wiley   +1 more source

Dual Chemical Looping/Catalytic Process for Alkylation of Benzene With Ethane and Propane Yielding Ethylbenzene and Cumene Over Copper‐Containing Mordenite

Angewandte Chemie, EarlyView.
We report a dual chemical looping/catalytic process coupling alkane dehydrogenation with aromatic alkylation over Cu‐mordenite, yielding up to 25% alkylated aromatics with >95% selectivity per cycle. In situ NMR, FTIR spectroscopy, and DFT show alkylation proceeds via a π‐bound Cu(I)–olefin intermediate and Brønsted acid sites.
Florent J. Dubray, Yu‐Hsun Wang, Mikalai A. Artsiusheuski, Jiawei Guo, Rene Verel, Ambarish Kulkarni, Jeroen A. van Bokhoven, Vitaly L. Sushkevich   +7 more
wiley   +2 more sources

Synthesis of Zinc(II)-natural zeolite mordenite type as a drug carrier for ibuprofen: Drug release kinetic modeling and cytotoxicity study

, 2022
Yantus A.B. Neolaka, Yosep Lawa, Magdarita Riwu, Handoko Darmokoesoemo, Harsasi Setyawati, Johnson N. Naat, Bernadeta Ayu Widyaningrum, Uyiosa Osagie Aigbe, Kingsley Eghonghon Ukhurebor, Robert Birundu Onyancha, Heri Septya Kusuma   +10 more
openalex   +1 more source

Hybridization of Homogeneous and Heterogeneous Catalysis to Develop a Novel Biocatalyst via Immobilization of Lipase on Surface Modified Mesoporous Silica Towards Biodiesel Synthesis Application

Advanced Energy and Sustainability Research, EarlyView.
The 3‐(methacryloyloxy)propyltrimethoxysilane surface functionalized SBA‐15 (MP‐SBA‐15) is used for the first time as a lipase carrier. The immobilized CAL‐B exhibits high thermal stability and superior catalytic activity. CAL‐B/SBA‐15 suggests that optimum hydrophobicity gives better catalytic activity.
Murugappan N., Ayumi Sato, Jiachen Ge, Arisa Yamada, Makoto Onaka, Yuki Nakamura, Masaru Ogura   +6 more
wiley   +1 more source

A Guideline to Evaluate Sorbent Performance for Atmospheric Water Harvesting

Advanced Energy and Sustainability Research, EarlyView.
Reporting guidelines for atmospheric water harvesting sorbents allow benchmarking between research groups across seven key performance indicators (KPIs). Beyond simple equilibrium values (such as capacity or maximum water uptake), these KPIs validate sensitivity, reversibility, regeneration conditions, chemical stability, kinetics, and water quality ...
Simon Ponton, David Brassard, Andrés Felipe Sánchez Rendón, Seyedemad Alavitabari, Richard Boudreault, Emilie Bédard, Pierre‐Luc Girard‐Lauriault, Jason R. Tavares   +7 more
wiley   +1 more source

Proofing the presence of metal oxide impregnated into zeolite A without calcination: XRD and FTIR studies

Case Studies in Chemical and Environmental Engineering
Zeolite A is a zeolite with the smallest Si/Al ratio. The aim of this research is to characterize the synthesis of metal oxide/zeolite A through XRD and FTIR results, and to evaluate the treatment without calcination in the synthesis of metal oxide ...
Muhammad Roy Asrori, Aman Santoso, Sumari Sumari   +2 more
doaj   +1 more source

Multilayer polymer/zeolite Y composite membrane structure for CO2 capture from flue gas

, 2015
Lin Zhao, Yuanxin Chen, Bo Wang, Chenhu Sun, Subhrakanti Chakraborty, Kartik Ramasubramanian, Prabir K. Dutta, W.S. Winston Ho   +7 more
openalex   +2 more sources