Hydrothermal synthesis of highly crystalline TiO2 nanorods is a well-developed technique and the nanorods have been widely used as the template for growth of various core-shell nanorod structures. Magneli/CdS core-shell nanorod structures are fabricated for the photoelectrochemical cell (PEC) electrode to achieve enhanced carrier transport along the metallic magneli phase nanorod template. However, the long and thin TiO2 nanorods may form a high resistance path to the electrons transferred from the CdS layer. TiO2 nanorods synthesized are reduced to magneli phases, TixO2x-1, by heat treatment in a hydrogen environment. Two types of magneli phase nanorods of Ti4O7 and Ti3O5 are synthesized. Structural morphology and X-ray diffraction analyses are carried out. CdS nano-films are deposited on the magneli nanorods for the main light absorption layer to form a photoanode, and the PEC performance is measured under simulated sunlight irradiation and compared with the conventional TiO2/CdS core-shell nanorod electrode. A higher photocurrent is observed from the stand-alone Ti3O5/CdS coreshell nanorod structure in which the nanorods are grown on both sides of the seed layer.

Abstract
 1. 서 론
 2. 실험 방법
  2.1 TiO2 씨앗 층 증착
  2.2 마그넬리상 합성
  2.3 CdS 층 도포
  2.4 광전류밀도측정
 3. 결과 및 고찰
  3.1 Ti4O7/CdS광전기화학셀의 구조 및 광전류밀도 측정
  3.2 Ti3O5/CdS 광전기화학셀 구조 및 광전류 밀도측정
 4. 결 론
 References

• 박지환(충남대학교 공과대학 신소재공학과) | Jihwan Park (Department of Materials Science and Engineering, Chungnam National University)
• Nguyen Duc Quang(충남대학교 공과대학 신소재공학과)
• 양하늘(충남대학교 공과대학 신소재공학과) | Haneul Yang (Department of Materials Science and Engineering, Chungnam National University)
• 홍순현(충남대학교 공과대학 신소재공학과) | Soonhyun Hong (Department of Materials Science and Engineering, Chungnam National University)
• Truong Thi Hien(충남대학교 공과대학 신소재공학과)
• Truong Thi Hien(충남대학교 공과대학 신소재공학과)
• 김천중(충남대학교 공과대학 신소재공학과) | Chunjoong Kim (Department of Materials Science and Engineering, Chungnam National University)
• 김도진(충남대학교 공과대학 신소재공학과) | Dojin Kim (Department of Materials Science and Engineering, Chungnam National University) Corresponding author