Ce promotion increases the rate of methanol formation by two orders of magnitude compared to Cu/TiO 2 and Cu/SiO 2 catalysts. The promotion proceeds via the generation of …
This Perspective focuses on the characterization of supported metal catalysts by operando and CO infrared (IR) spectroscopy. CO IR spectroscopy is a powerful technique for probing …
C Auepattana-aumrung, S Praserthdam, S Wannakao… - Fuel, 2021 - Elsevier
The transition metals: iron (Fe), copper (Cu), and nickel (Ni) were doped on ZSM-5 (Si/Al= 20), Na-ZSM-5, and H-ZSM-5 supports by incipient-wetness impregnation to investigate the …
Ambient conditions sorption isotherms of dihydrogen in a series of various levels of Cu- exchanged ZSM-5 zeolites, with two different Si/Al ratios, namely 11.5 and 25, show the …
M Cortés-Reyes, E Finocchio, C Herrera… - Microporous and …, 2017 - Elsevier
Abstract H-SAPO-34 and Cu-SAPO-34 catalysts have been synthesized by a hydrothermal method using ultrasound and diethylamine (DEA) as structural directing agent. Copper has …
M Tortorelli, K Chakarova, L Lisi, K Hadjiivanov - Journal of catalysis, 2014 - Elsevier
Adsorption of NO on an over-exchanged Cu-ZSM-5 sample (SiO 2/Al 2 O 3= 23) leads to formation of the well-known nitrosyl species of Cu 2+ and Cu+. In addition, two kinds of Cu …
V Zdravkova, N Drenchev, E Ivanova… - The Journal of …, 2015 - ACS Publications
Cations exchanged in zeolites are generally characterized by a low coordination number and can thus attach simultaneously more than one small guest molecule. For instance, Cu+ …
M Mihaylov, E Ivanova, V Zdravkova, S Andonova… - Molecules, 2021 - mdpi.com
The transition to a hydrogen economy requires the development of cost-effective methods for purifying hydrogen from CO. In this study, we explore the possibilities of Cu/ZSM-5 as an …
L Sun, Y Wang, X Gu, M Zhao, L Yuan - Molecules, 2024 - mdpi.com
Cu/SAPO-34 synthesized via a one-pot method with relatively low silicon content and copper loading at around 2 wt.% facilitated continuous oxidation of methane to methanol …