Nitrogen (N)-doped protein-based carbon as platinum (Pt) catalyst supports from tofu for oxygen reduction reactions are synthesized using a carbonization and reduction method. We successfully prepare 5 wt% Pt@N-doped protein-based carbon, 10 wt% Pt@N-doped protein-based carbon, and 20 wt% Pt@N-doped protein-based carbon. The morphology and structure of the samples are characterized by field emission scanning electron microscopy and transmission electron micro scopy, and crystllinities and chemical bonding are identified using X-ray diffraction and X-ray photoelectron spectroscopy. The oxygen reduction reaction are measured using a linear sweep voltammogram and cyclic voltammetry. Among the samples, 10 wt% Pt@N-doped protein-based carbon exhibits exellent electrochemical performance with a high onset potential of 0.62 V, a high E1/2 of 0.55 V, and a low ΔE1/2= 0.32 mV. Specifically, as compared to the commercial Pt/C, the 10 wt% Pt@N-doped proteinbased carbon had a similar oxygen reduction reaction perfomance and improved electrochemical stability.

1. 서 론
 2. 실험 방법
 3. 결과 및 고찰
 4. 결 론
 References

• 이영근(서울과학기술대학교 신소재공학과) | Young-geun Lee
• 안건형(서울과학기술대학교 의공학 바이오소재 융합 협동과정 신소재공학 프로그램) | Geon-hyeong An
• 안효진(서울과학기술대학교 신소재공학과, 서울과학기술대학교 의공학 바이오소재 융합 협동과정 신소재공학 프로그램) | Hyo-Jin Ahn Corresponding author