Controlled reactions on a copper surface: synthesis and characterization of nanostructured copper compound films.
Controlled reactions on a copper surface: synthesis and characterization of nanostructured copper compound films.
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DOI：
10.1021/ic0344214
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发表时间：
2003-07
影响因子：
4.6
通讯作者：
Weixin Zhang;X. Wen;Shih-Hsuan Yang
中科院分区：
文献类型：
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作者：
Weixin Zhang;X. Wen;Shih-Hsuan Yang
我们报道了在温和的条件下在铜表面合成纳米结构的铜化合物薄膜。在常温常压下，在铜表面成功地生长出了一系列低维结构，包括Cu（OH）（2）纤维和螺旋状结构、CuO片和晶须状结构以及Cu（2）（OH）（2）CO（3）棒状结构。大多数结构是纯相单晶。用（NH（4））（2）S（2）O（8）在NaOH水溶液中直接氧化铜形成膜。结果表明，随着反应条件的变化，超细结构由Cu（OH）（2）的纤维状变为Cu（OH）（2）的卷状，再变为CuO的片状或晶须状。通过用NaHCO（3）代替NaOH合成了Cu（2）（OH）（2）CO（3）的正方形/长方形棒阵列。可控反应允许大规模、无模板、成本有效地合成具有有序、均匀、稳定、超细结构的铜化合物膜。
We report the synthesis of nanostructured copper compound films on a copper surface under mild conditions. A series of low-dimensional structures including Cu(OH)(2) fibers and scrolls, CuO sheets and whiskers, and Cu(2)(OH)(2)CO(3) rods have been successfully grown on the copper surfaces at ambient temperature and pressure. Most of the structures are phase-pure single crystallites. The films were formed by the direct oxidation of copper in aqueous solutions of NaOH with an oxidant (NH(4))(2)S(2)O(8). The evolution of the ultrafine structures as a function of the reaction conditions has been revealed, from fibers of Cu(OH)(2) to scrolls of Cu(OH)(2) to sheets or whiskers of CuO. By replacing NaOH with NaHCO(3) in the synthesis, square/rectangular rod arrays of Cu(2)(OH)(2)CO(3) were obtained. The controlled reactions allow the large-scale, template-free, cost-effective synthesis of copper compound films with ordered, uniform, stable, ultrafine structures.