Al-modified Pd@mSiO2 core-shell catalysts for the selective hydrodeoxygenation of fatty acid esters: Influence of catalyst structure and Al atoms incorporation

Hollow and mesoporous M@aluminosilicate (M = Rh, Pd and Pt) bifunctional catalytic nanoreactors for the hydrodeoxygenation of lignin-derived phenols

“…As an appropriate amount of NaAlO 2 (r2.0 mL) was added to HMANs, they exhibited similar hollow structures to that of Rh@mSiO 2 . However, with the introduction of excess NaAlO 2 (2.5 mL), Al atoms could destroy the silica framework, 35 resulting in the partial collapse of the hollow structure (Fig. 1g).…”

“…With the volume of NaAlO 2 solution from 0.5 to 2.5 mL, the BET surface area of samples gradually decreased, owing to the accumulation of extra Al atoms. 35 To analyze the local environments of Al species, 27 Al nuclear magnetic resonance (NMR) spectroscopy was performed, and the results are shown in Fig. 4.…”

“…With the volume of NaAlO 2 solution from 0.5 to 2.5 mL, the BET surface area of samples gradually decreased, owing to the accumulation of extra Al atoms. 35…”

Al-Doped Core–Shell-Structured Ni@Mesoporous Silica for Highly Selective Hydrodeoxygenation of Lignin-Derived Aldehydes

“…21,22 Considering incorporating Al atoms into the silica framework can increase the acidity of the catalyst via the formation of the Si−O−Al bonds. 23,24 Herein, we have described a onepot method to synthesize Ni@Al x -mSiO 2 catalysts by incorporating different amounts of Al into mesoporous silica shells. The core−shell bifunctional catalysts exhibited excellent catalytic activity and superior stability in the HDO of ligninderived aldehydes in water.…”

A surface modification strategy to prepare hierarchical Beta molecular sieves for glucose dehydration

“…In the field of biomass conversion, 1,2 the production and application of platform molecules is a research hotspot. 3 Among these molecules, 5-hydroxymethylfurfural (5-HMF) is an important platform molecule and acts as a raw material to produce high-value-added products (such as 2,5-furan dicarboxylic acid, 4 2,5-furandimethanol, 5 and 2,5-dimethylfuran 6 ).…”