Zhou Shenghu, McIlwrath Kevin, Jackson Greg, Eichhorn Bryan
Department of Chemistry and Biochemistry, University of Maryland, College Park, MD 20742, USA.
J Am Chem Soc. 2006 Feb 15;128(6):1780-1. doi: 10.1021/ja056924+.
Au-Pt heteroaggregate nanostructures were prepared by sequential reduction methods. The structures have approximately 11 nm Au cores with Pt "tendrils" attached to the Au surface. The heteroaggregates are active H2 oxidation catalysts and show high activity at 90 degrees C in the presence of 1000 ppm CO. The surprising CO-tolerant behavior arises from the composition and unusual architecture of the particles.
通过顺序还原法制备了金-铂异质聚集体纳米结构。这些结构具有约11纳米的金核，铂“卷须”附着在金表面。这些异质聚集体是活性氢气氧化催化剂，在1000 ppm一氧化碳存在下于90摄氏度时表现出高活性。这种令人惊讶的耐一氧化碳行为源于颗粒的组成和不寻常的结构。
