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231.
Clean Technologies and Environmental Policy - Wave energy is recognized as a significant renewable energy source with a high energy density and very low environmental impact. Today, in parallel... 相似文献
232.
Pinar Akarsu Stefan Reinicke Anne-Catherine Lehnen Marek Bekir Alexander Böker Matthias Hartlieb Martin Reifarth 《Small (Weinheim an der Bergstrasse, Germany)》2023,19(43):2370355
Their inherent directional information renders patchy particles interesting building blocks for advanced applications in materials science. In this study, a feasible method to fabricate patchy silicon dioxide microspheres is demonstrated, which they are able to equip with tailor-made polymeric materials as patches. Their fabrication method relies on a solid-state supported microcontact printing (µCP) routine optimized for the transfer of functional groups to capillary-active substrates, which is used to introduce amino functionalities as patches to a monolayer of particles. Acting as anchor groups for polymerization, photo-iniferter reversible addition-fragmentation chain-transfer (RAFT) is used to graft polymer from the patch areas. Accordingly, particles with poly(N-acryloyl morpholine), poly(N-isopropyl acrylamide), and poly(n-butyl acrylate) are prepared as representative acrylic acid-derived functional patch materials. To facilitate their handling in water, a passivation strategy of the particles for aqueous systems is introduced. The protocol introduced here, therefore, promises a vast degree of freedom in engineering the surface properties of highly functional patchy particles. This feature is unmatched by other techniques to fabricate anisotropic colloids. The method, thus, can be considered a platform technology, culminating in the fabrication of particles that possess locally precisely formed patches on particles at a low µm scale with a high material functionality. 相似文献
233.
Metallurgical and Materials Transactions A - In situ formation of TiC particles in Fe matrix from Fe + Ti + C (FTC) powder mixtures via volume combustion synthesis (VCS) was... 相似文献