基于贵金属纳米材料的可控合成及应用：

（1）合成晶面、尺寸、形貌、组成等可控的贵金属纳米晶体并探索其生长机制；

（2）研究纳米晶体的结构本质及其与材料性质的内在联系；

（3）控制合成基于贵金属纳米颗粒的复合型功能材料，并将其应用于能源、催化、环保等领域。

1. Yanyun Ma, Weiyang Li, Eun Chul Cho, Zhiyuan Li, Taekyung Yu, Jie Zeng, Zhaoxiong Xie, Younan Xia.Au@Ag Core-Shell Nanocubes with Finely Tuned and Well-Controlled Sizes, Shell Thicknesses, and Optical Properties.ACS NANO2010, 4(11), 6725-6734.

2. Yanyun Ma, Jie Zeng, Weiyang Li, Maureen McKiernan, Zhaoxiong Xie, Younan Xia. Seed-Mediated Synthesis of Truncated Gold Decahedrons with a AuCl/Oleylamine Complex as Precursor. Adv. Mater.2010, 22, 1930-1934.

3. Yanyun Ma, Qin Kuang, Zhiyuan Jiang, Zhaoxiong Xie, Rongbin Huang, Lansun Zheng. Synthesis of Trisoctahedral Gold Nanocrystals with Exposed High-Index Facets by a Facile Chemical Method. Angew. Chem. Int. Ed.2008, 47, 8901-8904. (This work was highlighted in NPG Asia Materials research.)

4. Yanyun Ma, Weiyang Li, Jie Zeng, Maureen McKiernan, Zhaoxiong Xie, Younan Xia. Synthesis of Small Silver Nanocubes in a Hydrophobic Solvent by Introducing Oxidative Etching with Fe(III) Species. J. Mater. Chem.2010, 20, 3586-3589.

5. Yanyun Ma, Zhiyuan Jiang, Qin Kuang, Shuhong Zhang, Zhaoxiong Xie, Rongbin Huang, Lansun Zheng. Twin-Crystal Nature of the Single-Crystal-Like Branched Cu2O Particles.J. Phys. Chem. C2008, 112, 13405-13409.

6. Jie Zeng, Yanyun Ma, Unyong Jeong, Younan Xia. AuI: An Alternative and Potentially Better Precursor Than AuIII for the Synthesis of Au Nanostructures. J. Mater. Chem.2010, 20, 2290-2301. (invited feature article)