Stability of {111}(Pd)/{0002}(ZnO) polar interface formed by internal oxidation of Pd-Zn alloys

作者：Watanabe Kei; Kunisada Yuji; Sakaguchi Norihito^*

来源：Microscopy, 2014, 63(6): 463-467.

DOI：10.1093/jmicro/dfu095

• internal oxidation
• polar interface
• interfacial structure
• convergent-beam electron diffraction

We investigated the stability of Pd/ZnO polar interfaces formed by internal oxidation of Pd-Zn alloys by using high-resolution transmission electron microscopy, electron energy-loss spectroscopy and convergent-beam electron diffraction. At 1273 K, a (111)(Pd)/(000 (2) over bar)(ZnO) polar interface defaceted and transformed into a curved interface, while another (111) Pd/ (0002)(ZnO) polar interface retained its flatness. The (111)(Pd)/(000 (2) over bar)(ZnO) polar interface lost some stability over non-polar interfaces at 1273 K, while the (111)(Pd)/(000 (2) over bar)(ZnO) polar interface remained stable.

• 出版日期2014-12