Clay nanotube-metal core/shell catalysts for hydroprocesses

Abstract

Natural clay nanotube-metal based core/shell catalysts for hydroprocesses: structural design, synthesis, applications.

Gold@Halloysite nanotubes-chitin composite hydrogel with antibacterial and hemostatic activity for wound healing

“…The lumen of HNTs have a strong loading capacity and can be filled with different particles or drug molecules [ 13 , 14 ]. Metal particles can be loaded in the tube to achieve photothermal performance [ 15 , 16 ], thereby achieving the effect of photothermal sterilization. This not only has the effect of caring for the wound to avoid infection, but also the temperature rising can provide a warm environment that is conducive to wound repair and accelerate wound healing [ 17 , 18 ].…”

Architectural design of core–shell nanotube systems based on aluminosilicate clay

“… 7 Finally, more sophisticated architectural designs are involved in the formation of different types of particles inside and outside the nanotubes for synergistically enhanced bimetallic catalysis. 8 In Section 2, we will discuss these multi-component hierarchical core–shell nanosystems.…”

“…It is easier to accumulate cationic metal ions onto the negative outer tubes' surface, so that in many cases one can perform a nanoparticle formation reaction in the presence of halloysite to get well-seeded ceramic core–metal shell systems. 8,20 It is a simple and efficient reaction; the only problem is ensuring the stability of particle attachment to the tube surface, for example, for multiple catalysis applications. Metal core systems may be transposed to practical catalytic systems by hydrophobic finishing with alkyltriethoxysilanes of 8–18 carbon atoms on the outer halloysite surface.…”

Inclusion complexes of triblock L35 copolymer and hydroxyl propyl cyclodextrins: a physico-chemical study

“…In recent years, the development of supramolecular structures has gained growing interest because of their potential applications in numerous fields, including medicine, 1–7 pharmaceutics 8–10 catalysis, 11–18 engineering 19,20 and remediation. 21 Based on the definition of Nobel Prize laureate Jean-Marie Lehn, noncovalent interactions can drive the formation of highly organized structures.…”