Teitl: Identification of single-site gold catalysis in acetylene hydrochlorination

Dyfyniad
Malta G, Freakley SJ, Kondrat SA, et al. (2017). Identification of single-site gold catalysis in acetylene hydrochlorination. Cardiff University. http://doi.org/10.17035/d.2017.0032403846


Hawliau Mynediad: Gall data fod ar gael yn rhad ac am ddim yn amodol ar briodoli
Dull Mynediad: I anfon cais i gael y data hwn, ebostiwch opendata@caerdydd.ac.uk

Manylion y Set Ddata
Cyhoeddwr: Cardiff University
Dyddiad (y flwyddyn) pryd y daeth y data ar gael i'r cyhoedd: 2017
Dyddiad dechrau creu'r data: 01.04.2015
Dyddiad gorffen creu'r data: 31.05.2016
Fformat y data: .tif, .xrdml, .prj, .opj
Amcangyfrif o gyfanswm maint storio'r set ddata: Llai nag 1 gigabeit
DOI: 10.17035/d.2017.0032403846

Disgrifiad

There remains considerable debate over the active form of gold under operating conditions of a recently validated gold catalyst for acetylene hydrochlorination. We have performed an in situ x-ray absorption fine structure study of gold/carbon (Au/C) catalysts under acetylene hydrochlorination conditions and show that highly active catalysts comprise single-site cationic Au entities whose activity correlates with the ratio of Au(I):Au(III) present. We demonstrate that these Au/C catalysts are supported analogs of single-site homogeneous Au catalysts and propose a mechanism, supported by computational modeling, based on a redox couple of Au(I)-Au(III) species.

Research results based upon these data are published at http://doi.org/10.1126/science.aal3439



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Diweddarwyd y tro diwethaf ar 2019-01-08 am 08:37