TY - JOUR
T1 - 原子层沉积制备掺氮碳膜修饰的 Pt/CNTs 实现甲醇高效电催化氧化
AU - Yang, Huimin
AU - Zhang, Baiyan
AU - Zhang, Bin
AU - Gao, Zhe
AU - Qin, Yong
N1 - Publisher Copyright:
© 2018, Dalian Institute of Chemical Physics, Chinese Academy of Sciences. Published by Elsevier B.V. All rights reserved.
PY - 2018/6/1
Y1 - 2018/6/1
N2 - A Pt/CNTs catalyst coated with N-doped carbon (xNC-Pt/CNTs) is synthesized by atomic layer deposition (ALD) and applied in methanol electrooxidation reaction. Pt nanoparticles and polyimide (PI) are sequentially deposited on carbon nanotubes (CNTs) by ALD. After annealing at 600 °C in H2 atmosphere, the PI is carbonized to produce porous N-doped carbon. Upon coating with a moderately thick layer of N-doped carbon, the optimized 50NC-Pt/CNTs show higher activity, better long-term stability, and improved CO resistance towards methanol electrooxidation compared with Pt/CNTs and commercial Pt/C (20 wt%). X-ray photoelectron spectroscopy characterization result indicates that the Pt-CO bond is weakened after N-doped carbon coating and CO adsorption on the Pt surface is weakened, leading to superior electrocatalytic performance.
AB - A Pt/CNTs catalyst coated with N-doped carbon (xNC-Pt/CNTs) is synthesized by atomic layer deposition (ALD) and applied in methanol electrooxidation reaction. Pt nanoparticles and polyimide (PI) are sequentially deposited on carbon nanotubes (CNTs) by ALD. After annealing at 600 °C in H2 atmosphere, the PI is carbonized to produce porous N-doped carbon. Upon coating with a moderately thick layer of N-doped carbon, the optimized 50NC-Pt/CNTs show higher activity, better long-term stability, and improved CO resistance towards methanol electrooxidation compared with Pt/CNTs and commercial Pt/C (20 wt%). X-ray photoelectron spectroscopy characterization result indicates that the Pt-CO bond is weakened after N-doped carbon coating and CO adsorption on the Pt surface is weakened, leading to superior electrocatalytic performance.
KW - Atomic layer deposition
KW - Methanol electrooxidation
KW - Nitrogen-doped carbon
KW - Platinum
UR - http://www.scopus.com/inward/record.url?scp=85047379232&partnerID=8YFLogxK
U2 - 10.1016/S1872-2067(18)63066-9
DO - 10.1016/S1872-2067(18)63066-9
M3 - 文章
AN - SCOPUS:85047379232
SN - 1872-2067
VL - 39
SP - 1038
EP - 1043
JO - Chinese Journal of Catalysis
JF - Chinese Journal of Catalysis
IS - 6
ER -