Zheng Y. – TechConnect Briefs

Application of alumina-based nanogold catalysts in gas mask and CO2 laser

Qi C., Su H., Sun X., Guan R., Lin H., Sun X., Zheng Y., An L., Yantai Univeristy, CN

We have found that Au nanoparticles on Al2O3 (a popular commercially available support material) show surprisingly high activities for CO oxidation when properly prepared [6-11]. Our proprietary catalyst, Au deposited on a ferrite-modified alumina prepared [...]

Application of alumina-based nanogold catalysts in gas mask and CO2 laser

Qi C., Su H., Sun X., Guan R., Lin H., Sun X., Zheng Y., An L., Yantai Univeristy, CN

We have found that Au nanoparticles on Al2O3 (a popular commercially available support material) show surprisingly high activities for CO oxidation when properly prepared [6-11]. Our proprietary catalyst, Au deposited on a ferrite-modified alumina prepared [...]

Bio-Inspired Multi-gradient Structure Surfaces for Water Collection/Repellency

Zheng Y., Beihang University, CN

Biological surfaces with micro- and nanostructures display unique wetting functions. Since spider silk collects water through a combination of multiple gradients in a periodic spindle-knot structure after wet-rebuilding process, a series of functional fibers with [...]

Nanoscale Force Induced Size-selective Separation and Self-assembly of Metal Nanoparticles

Zheng Y., Monash University, AU

A simple and versatile nanoscale force induced precipitation approach for the separation of gold nanoparticles (AuNPs) was developed. The AuNPs show sharp size-dependent colloidal stability thresholds as a function of salt concentration. Upon separation, the [...]