@article{wu_mosher_lyons_zeng_2010, title={Reducing Ability and Mechanism for Polyvinylpyrrolidone (PVP) in Silver Nanoparticles Synthesis}, volume={10}, ISSN={["1533-4899"]}, DOI={10.1166/jnn.2010.1915}, abstractNote={Recently, it has been found that polyvinylpyrrolidone (PVP), a popular stabilizer in nanoparticles syntheses, possesses reducing ability for Ag+. Previous explanations of the reduction are, however, thought to be plausible. Based on detailed characterizations including UV-Vis, FTIR-ATR and XPS, we uncover the existence of Ag+ -O interaction, and demonstrate that the Ag+ -PVP complex is first formed via the coordination between Ag+ and O in the carbonyl group, which facilitates electron exchange between Ag+ and adjacent N atom on the pyrrolidone ring. The N atoms with lone pair electrons serve as an electron donator, leading reduction of Ag- to form PVP-capped Ag nanoparticles ultimately.}, number={4}, journal={JOURNAL OF NANOSCIENCE AND NANOTECHNOLOGY}, author={Wu, Chunwei and Mosher, Brian P. and Lyons, Kevin and Zeng, Taofang}, year={2010}, month={Apr}, pages={2342–2347} } @article{wu_mosher_zeng_2008, title={Powder-based nanoparticles fabrication technique in solution phase}, volume={188}, ISSN={["1873-328X"]}, DOI={10.1016/j.powtec.2008.04.038}, abstractNote={A highly efficient method, using ultrafine aluminum powder as heterogeneous reducing media as well as sacrificial template, has been developed to prepare various metallic or oxide nanoparticles including Au, Ag, Pt, RuO2 and Cu2O with good monodispersity. With the aid of ultrasonication-induced physical effects such as acoustic cavitation and microstreaming, zerovalent metallic atoms or clusters, when generated, are immediately dislodged from the surface of aluminum powder and are driven into bulk solution phase, avoiding the surface deposition and reaction termination. Ultrasonication also plays a critical role in promoting the mass transport through the channels in the amorphous and porous Al2O3 passivation layer around aluminum particles. The method opens a general and potent avenue for preparation of high-quality nanoparticles in large quantity and in a way that is environmentally friendly.}, number={2}, journal={POWDER TECHNOLOGY}, author={Wu, Chunwei and Mosher, Brian P. and Zeng, Taofang}, year={2008}, month={Dec}, pages={166–169} } @article{wu_zeng_2007, title={Size-tunable synthesis of metallic nanoparticles in a continuous and steady-flow reactor}, volume={19}, ISSN={["0897-4756"]}, DOI={10.1021/cm062344f}, abstractNote={The TEM image of silver nanoparticles is synthesized by the continuous and steady-flow process.}, number={2}, journal={CHEMISTRY OF MATERIALS}, author={Wu, Chunwei and Zeng, Taofang}, year={2007}, month={Jan}, pages={123–125} } @article{wu_mosher_zeng_2006, title={One-step green route to narrowly dispersed copper nanocrystals}, volume={8}, ISSN={["1572-896X"]}, DOI={10.1007/s11051-005-9065-2}, number={6}, journal={JOURNAL OF NANOPARTICLE RESEARCH}, author={Wu, Chunwei and Mosher, Brian P. and Zeng, Taofang}, year={2006}, month={Dec}, pages={965–969} } @article{mosher_wu_sun_zeng_2006, title={Particle-reinforced water-based organic-inorganic nanocomposite coatings for tailored applications}, volume={352}, ISSN={["1873-4812"]}, DOI={10.1016/j.jnoncrysol.2006.05.026}, abstractNote={We report the synthesis and characterization of three particle-reinforced water-based nanocomposite coatings. The films are sol–gel derived using non-ionic surfactant, with aluminum perchlorate (Al(ClO4)3) as a catalyst and 3-glycidoxypropyltrimethoxysilane (GPTMS) as precursor. Through the aid of nanoparticle colloids and a minute amount of catalyst, dense, hard and monolithic materials are obtained. Incorporating metal oxide nanoparticles brings forth unique properties, such as absorbing harmful UV radiation. Silica colloid composites provide greatly enhanced mechanical properties without modifying the unique optical properties of inorganic materials. Water-based synthesis of these coatings is straightforward and produces very few harmful byproducts, making them ideal materials in industry. The materials presented are relatively hard and abrasion resistant with very good adhesion; two of the coatings are UV absorbent. Various colloids can be employed in our methods to tailor properties and resulting materials may serve applications such as optical, protective, catalytic, guest-host, and multifunctional coatings.}, number={30-31}, journal={JOURNAL OF NON-CRYSTALLINE SOLIDS}, author={Mosher, Brian P. and Wu, Chunwei and Sun, Tao and Zeng, Taofang}, year={2006}, month={Sep}, pages={3295–3301} } @article{wu_mosher_zeng_2006, title={Rapid synthesis of gold and platinum nanoparticles using metal displacement reduction with sonomechanical assistance}, volume={18}, ISSN={["1520-5002"]}, DOI={10.1021/cm052400x}, abstractNote={We present a new route for preparation of metallic nanoparticles by sonomechanical-assisted metal displacement reduction. Au and Pt nanoparticles with sizes around 10 and 6 nm, respectively, and narrow size distributions were synthesized via the displacement reduction of precursor salts of HAuCl4·3H20 and H2PtCl6·6H2O by Cu and Fe foils, respectively.}, number={13}, journal={CHEMISTRY OF MATERIALS}, author={Wu, Chunwei and Mosher, Brian P. and Zeng, Taofang}, year={2006}, month={Jun}, pages={2925–2928} }