纳米碳纳米管官能团改性改善甲醇氧化反应

Kota V. M. K. Kireeti, N. Jha
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引用次数: 0

摘要

对碳载体上的表面官能团进行了改性,研究了改性对甲醇氧化反应的影响。通过控制酸碱处理,可定制表面功能。酸处理导致羧酸碳(CC)片段附着在swcnts上,使其具有亲水性(p3 - swcnts)。0.05 M NaOH碱基处理后的P33-SWCNT降低了CCs并使其疏水(p33 - swcnts)。在p33 - swcnts上负载的铂纳米颗粒催化剂比在p33 - swcnts上负载的铂纳米颗粒催化剂具有更高的more。p3 - swcnts上存在的大量羟基允许-OH基团在Pt催化剂上的表面覆盖,从而为MOR提供更多的活性位点。
本文章由计算机程序翻译,如有差异,请以英文原文为准。
Functionality modification of SWCNT for improved methanol oxidation reaction
Surface functional groups present on the SWCNT carbon support was modified and its effects on methanol oxidation reaction (MOR) was studied. The surface functionality is tailored using controlled acid and base treatment. Acid treatment leads to the attachment of carboxylic carbon (CC) fragments to SWCNT making it hydrophilic (P3-SWCNT). Base treatment of P3-SWCNT with 0.05 M NaOH reduces the CCs and makes it hydrophobic (P33-SWCNT). Platinum nanoparticle catalyst supported on the P3-SWCNT possesses enhanced MOR than that of Pt supported on P33-SWCNT. The high amount hydroxyl groups present on P3-SWCNT allow the surface coverage of -OH groups on Pt catalyst thereby providing more active sites for MOR.
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