气候变化领域集成服务门户(CCPortal): Enhancing the activity of oxygen-evolution and chlorine-evolution electrocatalysts by atomic layer deposition of TiO 2

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DOI	10.1039/c8ee02351d
	Enhancing the activity of oxygen-evolution and chlorine-evolution electrocatalysts by atomic layer deposition of TiO 2
	Finke C.E.; Omelchenko S.T.; Jasper J.T.; Lichterman M.F.; Read C.G.; Lewis N.S.; Hoffmann M.R.
发表日期	2019
ISSN	17545692
起始页码	358
结束页码	365
卷号	12 期号:1
英文摘要	We report that TiO 2 coatings formed via atomic layer deposition (ALD) may tune the activity of IrO 2 , RuO 2 , and FTO for the oxygen-evolution and chlorine-evolution reactions (OER and CER). Electrocatalysts exposed to ~3-30 ALD cycles of TiO 2 exhibited overpotentials at 10 mA cm -2 of geometric current density that were several hundred millivolts lower than uncoated catalysts, with correspondingly higher specific activities. For example, the deposition of TiO 2 onto IrO 2 yielded a 9-fold increase in the OER-specific activity in 1.0 M H 2 SO 4 (0.1 to 0.9 mA cm ECSA -2 at 350 mV overpotential). The oxidation state of titanium and the potential of zero charge were also a function of the number of ALD cycles, indicating a correlation between oxidation state, potential of zero charge, and activity of the tuned electrocatalysts. © 2019 The Royal Society of Chemistry.
英文关键词	Chlorine; Electrocatalysts; Electrolysis; Iridium compounds; Oxygen; Ruthenium compounds; Titanium dioxide; Chlorine evolution; Exposed to; Over potential; Oxidation state; Oxygen evolution; Potential of zero charge; Specific activity; TiO2 coating; Atomic layer deposition; catalysis; catalyst; chlorine; coating; correlation; geometry; oxidation; oxygen; titanium
语种	英语
来源期刊	Energy & Environmental Science
文献类型	期刊论文
条目标识符	http://gcip.llas.ac.cn/handle/2XKMVOVA/190041
作者单位	Linde Center for Global Environmental Science, Caltech Caltech, Pasadena, CA 91125, United States; Resnick Sustainability Institute, Caltech Caltech, Pasadena, CA 91125, United States; Division of Engineering and Applied Science, Caltech Caltech, Pasadena, CA 91125, United States; Division of Chemistry and Chemical Engineering, Caltech Caltech, Pasadena, CA 91125, United States
推荐引用方式 GB/T 7714	Finke C.E.,Omelchenko S.T.,Jasper J.T.,et al. Enhancing the activity of oxygen-evolution and chlorine-evolution electrocatalysts by atomic layer deposition of TiO 2[J],2019,12(1).
APA	Finke C.E..,Omelchenko S.T..,Jasper J.T..,Lichterman M.F..,Read C.G..,...&Hoffmann M.R..(2019).Enhancing the activity of oxygen-evolution and chlorine-evolution electrocatalysts by atomic layer deposition of TiO 2.Energy & Environmental Science,12(1).
MLA	Finke C.E.,et al."Enhancing the activity of oxygen-evolution and chlorine-evolution electrocatalysts by atomic layer deposition of TiO 2".Energy & Environmental Science 12.1(2019).