SnO 纳米片的合成与应用：通过水溶液路线平行控制氧化态和纳米结构。

Synthesis and applications of SnO nanosheets: parallel control of oxidation state and nanostructure through an aqueous solution route.

机构信息

Department of Applied Chemistry, Faculty of Science and Technology, Keio University, 3-14-1 Hiyoshi, Kohoku-ku, Yokohama 223-8522, Japan.

出版信息

Small. 2010 Mar 22;6(6):776-81. doi: 10.1002/smll.200902207.

DOI:10.1002/smll.200902207

PMID:20183815

Abstract

Tin monoxide (SnO) nanosheets 5 nm in thickness are generated on substrates through an aqueous solution process under mild conditions. Parallel control of the oxidation state and morphology is achieved by a urea-mediated approach in aqueous solution. The SnO nanosheets form a porous thin film on substrates such as indium tin oxide and carbon nanofiber (CNF). The porous thin film of SnO nanosheets shows cathodic photocurrent generation upon irradiation by UV and visible light. In contrast, the photocurrent is not observed in the bulk SnO microcrystals. Composites of the SnO nanosheets and CNF perform as the anode material of lithium-ion batteries with improved charge-discharge reversible stability.

摘要

通过在温和条件下的水溶液工艺，在基底上生成厚度为 5nm 的氧化亚锡（SnO）纳米片。通过在水溶液中的尿素介导方法，实现了氧化态和形态的平行控制。SnO 纳米片在铟锡氧化物和碳纳米纤维（CNF）等基底上形成多孔薄膜。多孔 SnO 纳米片薄膜在紫外光和可见光照射下产生阴极光电流。相比之下，在体相 SnO 微晶体中没有观察到光电流。SnO 纳米片和 CNF 的复合材料作为锂离子电池的阳极材料，具有改善的充放电可逆稳定性。