Carbon nanotube sponges show effective filtration for nanoparticles and dye molecules with different sizes and concentrations from water. The three-dimensional interconnected porous structure formed by entangled nanotubes can trap nanoparticles and molecules by physisorption without the need for chemical functionalization. The sponge filters are potential environmental materials for water treat...

Pd nanoparticles were well dispersed on a new triptycene-based microporous polymer support by the gas bubbling-assisted membrane reduction (GBMR) method. The stability of Pd nanoparticles is improved by the porous support, and the materials show excellent performance for CO oxidation.

Solidification of fluidic ionic liquids into porous materials yields porous ionic networks that combine the unique characteristics of ionic liquids with the common features of polymers and porous materials. This minireview reports the most recent advances in the design of porous ionic liquids. A summary of the synthesis of ordered and disordered porous ionic liquid-based nanoparticles or membra...

the aim of the present study was to prepare nano-sized calcium fluoride (caf2). calcium fluoride nanoparticles were synthesized by cacl2.6h2o and ammonium fluoride. nanoparticles were synthesized by co-precipitation method. the synthesized nanocrystals were characterized by x-ray diffraction (xrd), fourier transform infrared spectroscopy (ftir), scanning electron microscopy (sem). the crystalli...

Porous silicon nanowires are synthesized through metal assisted wet-chemical etch of highly-doped silicon wafer. The resulted porous silicon nanowires exhibit a large surface area of 337 m(2)·g(-1) and a wide spectrum absorption across the entire ultraviolet, visible and near infrared regime. We further demonstrate that platinum nanoparticles can be loaded onto the surface of the porous silicon...

Silicon nanoparticles are the focus of attention thanks to their potentialities in advanced applications such as new batteries, photovoltaic cells and so on. The need to porous silicon is thus rising and will follow the same trend. In this work, highly porous nanostructured silicon is synthesized via Self-propagating high-temperature synthesis (SHS) route. Microstructural and phase analyses sho...

Hollow gold nanoparticles formed by galvanic replacement reactions have been extensively studied because their increased surface area and tunable optical properties have applications in catalysis, drug delivery, and photothermal cancer therapies. In this study, hollow gold nanoparticles (size 30-40 nm) were synthesized by transmetallation of tyrosinereduced sacrificial solid silver nanospheres....

Hollow/porous nanoparticles, including nanocarriers, nanoshells, and mesoporous materials have applications in catalysis, photonics, biosensing, and delivery of theranostic agents. Using a hierarchical template synthesis scheme, we have synthesized a nanocarrier mimicking a golf ball, consisting of (i) solid silica core with a pitted gold surface and (ii) a hollow/porous gold shell without sili...

Adv. Mater. 2010, 22, 415–418 2010 WILEY-VCH Verlag Gm Porous nanostructured metals have been investigated for their various applications, such as catalysts, gas and thermal sensors, and electronics. Approaches for preparing such porous materials include coating templates and removing these templates by etching or thermal annealing. Recently, the deposition of metals on porous biomineral templa...

State Key Laboratory of Silicon Materials, K Application for Batteries of Zhejiang Provin Engineering, Zhejiang University, Hangzhou edu.cn; Fax: +86 571 87951152; Tel: +86 57 Department of Chemical and Biomolecula College Park, MD 20742, USA. E-mail: cswa † Electronic supplementary information (TGA) prole of the SnO2@C porous com porous composite aer being ultrasoni galvanostatic charge–disc...