1. Department of Frontier Materials and Functional Engineering, Graduate School of Engineering, Iwate University, 4-3-5 Ueda, Morioka, Iwate 020-8551, Japan, VK Corporation, 67 Jije-Dong, Pyongtaek-City, Kyonggi-Do 450−090, South Korea, and Department of Chemical Engineering, Hanyang University, Seungdong-Gu, Seoul 133-791, South Korea