1. Department of Energy Engineering; School of Energy and Chemical Engineering; Ulsan National Institute of Science and Technology (UNIST), Eonyang-eup, Ulju-gun; Ulsan 44919 Korea
2. R&D Center; SJ Advanced Materials Co., LTD.; 92 Bancheonsaneop-ro, Eonyang-eup, Ulju-gun Ulsan 44936 Korea