Modification of the catalytic properties of the Au4 nanocluster for the conversion of methane-to-methanol: synergistic effects of metallic adatoms and a defective graphene support

Physical Chemistry Chemical Physics : PCCP
J Sirijaraensre, Jumras Limtrakul

Abstract

Decorating graphene with nano-clusters offers potential for a wide range of industrial applications. For catalysis, embedding precisely controlled mono- and bimetallic nanoclusters into graphene can greatly increase their catalytic activities, especially for oxidation reactions. The catalytic performance of a gold nanocluster can be modified dramatically by changing its electronic properties. The results of this work demonstrate by means of DFT calculations that by strategic doping and promotion from the support material the catalytic activity improvement of a gold-based catalyst for the partial oxidation reaction of methane can be drastically enhanced. The transition metal-mediated catalysis is significantly affected by the two spin-state reactivities over them. The investigated catalytic processes consist of N2O decomposition and methane hydroxylation over three subnanoclusters (Au5, Au4Pd, and Au4Pt) deposited on a single vacancy graphene support. It was found that graphene acts not only as a support but also supports the catalysis through charge transfer between the subnanocluster and graphene. Graphene-supported Au4Pd exhibits enhanced catalytic activity for both steps of methane-to-methanol conversion, whereas the support...Continue Reading

References

Jan 15, 2005·Chemphyschem : a European Journal of Chemical Physics and Physical Chemistry·Piboon PantuJumras Limtrakul
Jun 21, 2006·Accounts of Chemical Research·Kazunari Yoshizawa
Mar 3, 2007·Nature Materials·A K Geim, K S Novoselov
Apr 7, 2007·The Journal of Chemical Physics·Kirk A PetersonHermann Stoll
May 2, 2009·The Journal of Chemical Physics·Detlev FiggenHermann Stoll
Jun 23, 2009·Science·A K Geim
Feb 23, 2010·Chemical Reviews·Aicheng Chen, Peter Holt-Hindle
Jul 28, 2010·Chemical Communications : Chem Comm·Zhigang XiongX S Zhao
Oct 13, 2012·Nature·K S NovoselovK Kim
May 15, 2013·ACS Applied Materials & Interfaces·Chang-Hai LiuSui-Dong Wang
Sep 26, 2014·Physical Chemistry Chemical Physics : PCCP·Natcha InjanJumras Limtrakul
May 1, 2006·Journal of Chemical Theory and Computation·Xiaosong Li, Michael J Frisch

❮ Previous
Next ❯

Citations

Jan 23, 2016·The Journal of Physical Chemistry. B·Abhishek JaiswalYang Zhang
Jan 23, 2016·ACS Nano·Qingfeng ZhangHui Wang
Mar 5, 2016·The Journal of Physical Chemistry Letters·Dmitry A KislitsynGeorge V Nazin
Dec 15, 2015·Journal of the American Chemical Society·Ke YangJeffrey S Moore
Dec 8, 2015·The Journal of Physical Chemistry. B·Animesh PanSatya Priya Moulik
Dec 9, 2015·Analytical Chemistry·Michel de MessieresJennifer C Lee
Nov 7, 2015·Langmuir : the ACS Journal of Surfaces and Colloids·Hitoshi Hosokawa, Tomoyuki Mochida
Jul 21, 2015·ACS Applied Materials & Interfaces·Ananta SarkarSagar Mitra
Jun 4, 2015·The Journal of Physical Chemistry. B·Héctor M Manzanilla-GranadosJosé Alejandre
Aug 13, 2015·The Journal of Physical Chemistry Letters·Yuehua XuXiao Cheng Zeng
Apr 16, 2015·ACS Applied Materials & Interfaces·Sungjin KimShigeo Maruyama
Jan 28, 2015·Journal of the American Chemical Society·E Prabhu Raman, Alexander D MacKerell
Jan 23, 2015·The Journal of Physical Chemistry. a·Ádám GanyeczMihály Kállay
Jan 13, 2015·Journal of the American Chemical Society·Jonathan C BarnesJ Fraser Stoddart
Dec 17, 2014·Journal of the American Chemical Society·Yuichi TerazonoDevens Gust
May 4, 2016·Annals of Biomedical Engineering·Amlan ChakrabortyBodduluri Haribabu
Aug 2, 2016·Journal of Chemical Theory and Computation·Wesley D AllenPeter R Schreiner
Mar 28, 2017·Journal of the American Chemical Society·Matthew J CliffeClare P Grey
Jun 28, 2017·The Journal of Physical Chemistry. a·Rebecca K CarlsonLaura Gagliardi
Nov 4, 2015·Physical Chemistry Chemical Physics : PCCP·Chuanyi Jia, Weiliu Fan
Jul 12, 2017·Langmuir : the ACS Journal of Surfaces and Colloids·Xiaowei LiuTao Liu
Jun 24, 2017·Angewandte Chemie·Manoj RaviJeroen A van Bokhoven

❮ Previous
Next ❯

Related Concepts

Trending Feeds

COVID-19

Coronaviruses encompass a large family of viruses that cause the common cold as well as more serious diseases, such as the ongoing outbreak of coronavirus disease 2019 (COVID-19; formally known as 2019-nCoV). Coronaviruses can spread from animals to humans; symptoms include fever, cough, shortness of breath, and breathing difficulties; in more severe cases, infection can lead to death. This feed covers recent research on COVID-19.

Blastomycosis

Blastomycosis fungal infections spread through inhaling Blastomyces dermatitidis spores. Discover the latest research on blastomycosis fungal infections here.

Nuclear Pore Complex in ALS/FTD

Alterations in nucleocytoplasmic transport, controlled by the nuclear pore complex, may be involved in the pathomechanism underlying multiple neurodegenerative diseases including Amyotrophic Lateral Sclerosis and Frontotemporal Dementia. Here is the latest research on the nuclear pore complex in ALS and FTD.

Applications of Molecular Barcoding

The concept of molecular barcoding is that each original DNA or RNA molecule is attached to a unique sequence barcode. Sequence reads having different barcodes represent different original molecules, while sequence reads having the same barcode are results of PCR duplication from one original molecule. Discover the latest research on molecular barcoding here.

Chronic Fatigue Syndrome

Chronic fatigue syndrome is a disease characterized by unexplained disabling fatigue; the pathology of which is incompletely understood. Discover the latest research on chronic fatigue syndrome here.

Evolution of Pluripotency

Pluripotency refers to the ability of a cell to develop into three primary germ cell layers of the embryo. This feed focuses on the mechanisms that underlie the evolution of pluripotency. Here is the latest research.

Position Effect Variegation

Position Effect Variagation occurs when a gene is inactivated due to its positioning near heterochromatic regions within a chromosome. Discover the latest research on Position Effect Variagation here.

STING Receptor Agonists

Stimulator of IFN genes (STING) are a group of transmembrane proteins that are involved in the induction of type I interferon that is important in the innate immune response. The stimulation of STING has been an active area of research in the treatment of cancer and infectious diseases. Here is the latest research on STING receptor agonists.

Microbicide

Microbicides are products that can be applied to vaginal or rectal mucosal surfaces with the goal of preventing, or at least significantly reducing, the transmission of sexually transmitted infections. Here is the latest research on microbicides.