Chung-Kil Seo is an associate professor at the Department of Automotive Engineering at Howon University in Gunsan, Jeollabuk-do, Republic of South Korea. The major is combustion and post-exhaust treatment engineering, renewable energy. In particular, I have devoted to catalytic research and development, which is an exhaust gas abatement device for diesel vehicles, and have contributed to practical use of de-NOx catalysts (Lean NOx Tran & Selective Catalytic Reduction). I received a Ph. D. degree in the Department of Mechanical Engineering from Chonnam National University at Gwangju city in February 2012. I have been working on the environmentally friendly diesel hybrid research center of Korea Automotive Technology Institute (KATECH) under the Ministry of Tread, Industry and Energy, and mainly developed the catalysis for vehicles and sensors.