Pentacoordinated aluminum species: New frontier for tailoring acidity-enhanced silica–alumina Catalysts

Z Wang, Y Jiang, A Baiker, J Huang - Accounts of Chemical …, 2020 - ACS Publications
Conspectus Silica–alumina catalysts, including zeolites and amorphous silica–aluminas
(ASAs), are among the most widely used solid acid catalysts and supports to produce …

Advanced applications of amorphous alumina: From nano to bulk

A Mavrič, M Valant, C Cui, ZM Wang - Journal of Non-Crystalline Solids, 2019 - Elsevier
In modern technologies, the researchers are keen on top-down approaches to tailor the
materials from bulk into their nanometer forms. For the amorphous alumina, this is the other …

Nanosheets-stacked Al2O3-flower anchoring Pt catalyst for intensified ethylene production from ethane dehydrogenation

J Wu, G Zhao, M Song, H Wang, Y Wei, X Chen… - Fuel, 2022 - Elsevier
Catalytic ethane dehydrogenation (CEDH) to ethylene is an important alternative to oil-
based cracking processes due to the shale gas revolution, but the dominant Pt-based …

Qualitative and quantitative analysis of acid properties for solid acids by solid-state nuclear magnetic resonance spectroscopy

W Yang, Z Wang, J Huang, Y Jiang - The Journal of Physical …, 2021 - ACS Publications
Silica–alumina-based solid acid is one of the most popular heterogeneous catalysts utilized
in the petrochemical process and biorefining. The acid density, strength, and accessibility of …

Synthesis and characterization of amorphous silica-alumina with enhanced acidity and its application in hydro-isomerization/cracking

T Li, L Zhang, Z Tao, C Hu, C Zhao, F Yi, X Gao, X Wen… - Fuel, 2020 - Elsevier
Amorphous silica-aluminas with enhanced Brønsted acidity have been successfully
synthesized via a novel acetic acid based sol-gel process. The resulting amorphous silica …

Mildly acidic aluminosilicate catalysts for stable performance in ethanol dehydration

A Styskalik, V Vykoukal, L Fusaro, C Aprile… - Applied Catalysis B …, 2020 - Elsevier
Ethanol dehydration is effectively catalyzed by strongly acidic zeolites which, however,
exhibit poor time-on-stream stability. For example, HZSM-5 features strong acid sites …

Synthesis of hybrid framework of tenorite and octahedrally coordinated aluminosilicate for the robust adsorption of cationic and anionic dyes

VL Gopal, K Chellapandian - Environmental Research, 2023 - Elsevier
Adsorption is an important process for the industrial dye effluent treatment. Many adsorbents
are employed such as activated carbon, metal oxide, molecular sieves etc. All those …

Revealing Brønsted acidic bridging SiOHAl groups on amorphous silica–alumina by ultrahigh field solid-state NMR

Z Wang, K Chen, Y Jiang, J Trebosc… - The journal of …, 2021 - ACS Publications
Amorphous silica–aluminas (ASAs) are important acidic catalysts and supports for many
industrially essential and sustainable processes. The identification of surface acid sites with …

Ex-situ catalytic upgrading of Spirulina platensis residue oil using silica alumina catalyst

A Budiman, H Anggorowati, A Yulistiawan… - International Journal of …, 2019 - ijrer.com
This paper discusses the effect of rising temperatures pyrolysis and the use of silica-alumina
catalysts located in a dedicated chamber to improve the quality of bio-oil in terms of O/C …

Formation and Location of Pt Single Sites Induced by Pentacoordinated Al Species on Amorphous Silica–Alumina

Y Zhao, L Wang, A Kochubei, W Yang… - The Journal of …, 2021 - ACS Publications
Alumina and its mixed oxides are popular industrial supports for emerging supported metal
catalysts. Pentacoordinated Al (AlV) species are identified as key surface sites for anchoring …