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Volumn 6, Issue 1, 2004, Pages 27-31

Construction and Reactivity Screening of a Surface Composition Gradient for Combinatorial Discovery of Electro-Oxidation Catalysts

Author keywords

[No Author keywords available]

Indexed keywords

CARBON MONOXIDE; HYDROCARBON; HYDROGEN; INDIUM; MOLYBDENUM; OSMIUM; PLATINUM; POLYMER; PROTON; RUTHENIUM; TIN;

EID: 0942268102     PISSN: 15204766     EISSN: None     Source Type: Journal    
DOI: 10.1021/cc034030k     Document Type: Article
Times cited : (50)

References (39)
  • 25
    • 0942285617 scopus 로고    scopus 로고
    • note
    • 4, and a potential pulse program with a square wave with potential limits of 0.5 V and -1.0 V vs RHE and a frequency of 100 Hz was applied for 5 min. This resulted in the reduction of the metal ions on the ITO surface forming a co-deposited PtxRuy catalyst gradient. The agarose gel was removed subsequently by dissolving it in a boiling water bath, leaving behind the metal deposit on the substrate.
  • 26
    • 0942274835 scopus 로고    scopus 로고
    • note
    • y gradient, the photoresist was removed by immersing the substrate in photoresist remover (Microposit remover 1165, Shipley, Marlborough, MA) for ∼2 min. The substrate was cleaned thoroughly with deionized water before performing any further experiments.
  • 32
    • 0942274834 scopus 로고    scopus 로고
    • note
    • The spatial resolution of the SECM is related to the tip size and the tip-substrate separation. The best point-to-point resolution is on the order of the diameter of the active tip area.
  • 34
    • 0942296558 scopus 로고    scopus 로고
    • note
    • 3+t)).
  • 35
    • 0942296554 scopus 로고    scopus 로고
    • note
    • The tip was scanned well beyond the catalyst region and onto the bare ITO regions. The ITO regions exhibited a pure negative feedback because they are catalytically inactive toward the hydrogen oxidation reaction. This facilitates identifying the edges of the catalyst region as seen by the UME tip, which in turn provides an absolute indexing of the various catalyst compositions as a function of distance, and hence, a one-to-one correspondence with the composition data measured by EDS.
  • 36
    • 0942285621 scopus 로고    scopus 로고
    • note
    • 4 for ∼10 min. CO was then removed from solution by purging with nitrogen for a period of 15 min with the substrate under potential control.
  • 39
    • 0942263953 scopus 로고    scopus 로고
    • note
    • -1 for the present system.


* 이 정보는 Elsevier사의 SCOPUS DB에서 KISTI가 분석하여 추출한 것입니다.