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. https://doi.org/10.17035/d.2017.0032403846

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

DOI URL: http://doi.org/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