Identification of single-site gold catalysis in acetylene hydrochlorination
نویسندگان
چکیده
منابع مشابه
Identification of single-site gold catalysis in acetylene hydrochlorination.
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 reaction conditions and show that highly active catalysts comprise single-site cationic Au entities who...
متن کاملCharacterization of Au species in Au/C catalysts for the hydrochlorination reaction of acetylene
A set of Au/C catalysts for the gas phase hydrochlorination of acetylene to vinyl chloride monomer were prepared using a range of strong acids as impregnating solvents and varying the preparation drying temperature. The most active catalyst is the material prepared using aqua regia as solvent with an intermediate drying temperature of 140 C. The effects of the catalyst preparation parameters on...
متن کاملEnhancement of the Stability of Au-Cu/AC Acetylene Hydrochlorination Bimetallic Catalyst with Melamine Treated Support
This paper highlights the experimental and theoretical studies on the Melamine treated Active Carbon (MAC) support for an Au-Cu bimetallic catalyst in acetylene hydrochlorination reaction. Compared to the original Active Carbon (AC) loaded with the same amount of 0.1wt% Au and 1.0wt% Cu, MAC supported catalyst(MACH), wherein Carbon/C6...
متن کاملTrimetallic Au-Cu-La/AC for Acetylene Hydrochlorination in a Multi-Tubular Fixed Bed Reactor
The metal chloride of LaCl3 was chosen to modify the Au-Cu/AC to decrease the noble metal of gold and enhance the catalytic performances. Then a mercury-free catalyst of Au-Cu-La/AC was prepared by the impregnation method, and the fresh Au-Cu-La/AC and Au-Cu/AC catalysts were also characteri...
متن کاملCatalysis of gold nanoparticles within lysozyme single crystals.
Bio–nano hybrid materials have been the focus of numerous studies because they combine the merits of both biomolecules and nanomaterials, with potential for a wide range of applications in catalysis, electronic devices, energy conversion and storage, drug delivery, imaging, and sensing. Because of the promise, many biological molecules, such as DNA, proteins, carbohydrates, bacteria, and viruse...
متن کاملذخیره در منابع من
با ذخیره ی این منبع در منابع من، دسترسی به آن را برای استفاده های بعدی آسان تر کنید
ژورنال
عنوان ژورنال: Science
سال: 2017
ISSN: 0036-8075,1095-9203
DOI: 10.1126/science.aal3439