Recent Advances in Supported Gold Nanocatalyst

A special issue of Catalysts (ISSN 2073-4344). This special issue belongs to the section "Environmental Catalysis".

Deadline for manuscript submissions: closed (28 February 2019) | Viewed by 11625

Special Issue Editors


E-Mail Website
Guest Editor
Department of Liberal Arts and Sciences, Virginia Commonwealth University, Doha, Qatar
Interests: nanotechnology, nanocatalysts, and nanoparticle systems of metals; metal alloys, nanoparticle/polymer hybrid nanostructures; metal oxides; catalytic materials for “Future Fuels” synthesis and environmental applications
Special Issues, Collections and Topics in MDPI journals

E-Mail Website
Co-Guest Editor
Applied Physics Department, School of Engineering Sciences, KTH Royal Institute of Technology, Hannes Alfvéns väg 12, 11419 Stockholm, Sweden
Interests: capacitive deionization; photocatalysis; green hydrogen; zinc oxide; microplastics

Special Issue Information

Dear Colleagues,

For the past few centuries, bulk gold was regarded as a catalytically-inert material. However, gold catalyst was first used as a hydrogen oxidation catalyst in 1906 by Bone and Wheeler. Then, in 1925, Bone and Andrew reported gold-catalyzed CO oxidation. In the 1950s and 1960s, gold was mainly used as a hydrogenation catalyst. In the 1970s, Bond, Sermon, and Paravano reported that small dispersed gold particles, supported on different metal oxides (MgO, Al2O3, and SiO2) exhibited high catalytic activity toward the hydrogenation of alkenes at very low temperatures (e.g., 373 K). These results were later used to develop a model for the mechanism of heterogeneously catalyzed CO oxidation. In the last decade, the main focus was on the reactivity of small gold supported on metal oxide nanocatalysis (“Gold Rush”). In 1987, a breakthrough was made by Haruta, where nanogold supported on transition metal oxides was proven to play a significant role in the field of heterogeneous catalysis, especially for room temperature CO oxidation. Since then, supported gold nanocatalysts became one of the hottest topics in chemistry and was considered to be the basis of gold nanocatalysis research in the scientific world.

This Special Issue aims at reporting recent advances in the synthesis of novel supported gold nanocatalysts with high activity and stability for many catalytic and photocatalytic reactions. Moreover, potential applications, kinetics, reaction rates, reaction mechanisms, active sites, nature of support, gold-support interaction, preparation conditions, surface aria, heat treatment, as well as the morphology of the catalyst and its effect on catalytic activity and stability, are valuable subjects for this Special Issue.

Dr. Khaled Saoud
Prof. Dr. Joydeep Dutta
Guest Editors

Manuscript Submission Information

Manuscripts should be submitted online at www.mdpi.com by registering and logging in to this website. Once you are registered, click here to go to the submission form. Manuscripts can be submitted until the deadline. All submissions that pass pre-check are peer-reviewed. Accepted papers will be published continuously in the journal (as soon as accepted) and will be listed together on the special issue website. Research articles, review articles as well as short communications are invited. For planned papers, a title and short abstract (about 100 words) can be sent to the Editorial Office for announcement on this website.

Submitted manuscripts should not have been published previously, nor be under consideration for publication elsewhere (except conference proceedings papers). All manuscripts are thoroughly refereed through a single-blind peer-review process. A guide for authors and other relevant information for submission of manuscripts is available on the Instructions for Authors page. Catalysts is an international peer-reviewed open access monthly journal published by MDPI.

Please visit the Instructions for Authors page before submitting a manuscript. The Article Processing Charge (APC) for publication in this open access journal is 2700 CHF (Swiss Francs). Submitted papers should be well formatted and use good English. Authors may use MDPI's English editing service prior to publication or during author revisions.

Keywords

  • supported gold nanocatalyst
  • photocatalysis
  • hyderogenation
  • metal support interaction
  • hetrogenious catalysis
  • CO2 conversion and reduction
  • fisher tropich reaction
  • water gas shift reaction
  • waste water treatment
  • CO oxidation

Published Papers (2 papers)

Order results
Result details
Select all
Export citation of selected articles as:

Research

Jump to: Review

11 pages, 2245 KiB  
Article
Mn-doped CeO2 Nanorod Supported Au Catalysts for Dehydrogenation of Ethane with CO2
by Tianqi Lei, Hongyao Guo, Changxi Miao, Weiming Hua, Yinghong Yue and Zi Gao
Catalysts 2019, 9(2), 119; https://doi.org/10.3390/catal9020119 - 30 Jan 2019
Cited by 15 | Viewed by 3199
Abstract
Dehydrogenation of ethane to ethylene was investigated in the presence of CO2 over Au catalyst supported on an Mn-doped ceria nanorod. The activity can be greatly enhanced by proper Mn doping. Mn was found to preferentially occupy defect sites or surface sites [...] Read more.
Dehydrogenation of ethane to ethylene was investigated in the presence of CO2 over Au catalyst supported on an Mn-doped ceria nanorod. The activity can be greatly enhanced by proper Mn doping. Mn was found to preferentially occupy defect sites or surface sites of ceria, resulting in the formation of extra oxide ions. Characterization results indicated that the reducible oxygen species related to ceria might play a vital role in the dehydrogenation. The addition of CO2 improved the stability of the catalysts remarkably, since CO2 can sustainably replenish the reducible oxygen species and eliminate the coke on the surface of the catalysts, which was proved by the H2-TPR and Raman analysis of spent catalysts. An ethane conversion of 17.4% with an ethylene selectivity of 97.5% can be obtained after 44 h of reaction. Full article
(This article belongs to the Special Issue Recent Advances in Supported Gold Nanocatalyst)
Show Figures

Graphical abstract

Review

Jump to: Research

22 pages, 4439 KiB  
Review
Heterogeneous Gold Catalysis: From Discovery to Applications
by Ahmad S. Alshammari
Catalysts 2019, 9(5), 402; https://doi.org/10.3390/catal9050402 - 29 Apr 2019
Cited by 32 | Viewed by 8005
Abstract
In the present review, the important and current developments of gold catalysts for a wide range of applications are comprehensively summarized. This review also provides a detailed study of the literature data concerning the preparation, characterization, and catalytic applications of gold catalysts. Additionally, [...] Read more.
In the present review, the important and current developments of gold catalysts for a wide range of applications are comprehensively summarized. This review also provides a detailed study of the literature data concerning the preparation, characterization, and catalytic applications of gold catalysts. Additionally, the main aspects of using supported gold nanoparticles (AuNPs) as catalysts for oxidation reactions are considered. In particular, the oxidation of benzyl alcohol to benzaldehyde and the production of adipic acid from cyclohexane are discussed in detail. Lastly, the key properties of gold catalysts are described, and an outlook on the application of gold catalysts is presented. Full article
(This article belongs to the Special Issue Recent Advances in Supported Gold Nanocatalyst)
Show Figures

Figure 1

Back to TopTop