X-ray-induced reduction of Au ions in an aqueous solution in the presence of support materials and in situ time-resolved XANES measurements

In situ time-resolved XANES measurements of Au ions in an aqueous solution in the presence of support materials were performed under synchrotron X-ray irradiation. The synchrotron X-ray-induced reduction of Au ions leads to the formation of Au nanoparticles on the carbon particles, acrylic cell or polyimide window. The deposited Au metallic spots were affected by the wettability of carbon particles.

[1]  Y. Zou,et al.  An in situ XAFS study--the formation mechanism of gold nanoparticles from X-ray-irradiated ionic liquid. , 2013, Physical chemistry chemical physics : PCCP.

[2]  Jun-ichiro Kugai,et al.  Pt/TiO2 composite nanoparticles synthesized by electron beam irradiation for preferential CO oxidation , 2013 .

[3]  S. Seino,et al.  Preparation of carbon-supported PtCo nanoparticle catalysts for the oxygen reduction reaction in polymer electrolyte fuel cells by an electron-beam irradiation reduction method , 2013, Journal of Materials Science.

[4]  Jun-ichiro Kugai,et al.  Carbon-supported AuPd bimetallic nanoparticles synthesized by high-energy electron beam irradiation for direct formic acid fuel cell , 2013, Journal of Materials Science.

[5]  G. Aquilanti,et al.  Monitoring synchrotron X-ray-induced radiolysis effects on metal (Fe, W) ions in high-temperature aqueous fluids. , 2012, Journal of synchrotron radiation.

[6]  Tsunehiro Tanaka,et al.  In situ time-resolved XAFS study of the reaction mechanism of bromobenzene homocoupling mediated by [Ni(cod)(bpy)]. , 2012, The journal of physical chemistry. A.

[7]  Jun-ichiro Kugai,et al.  Enhanced electrochemical stability of PtRuAu/C catalyst synthesized by radiolytic process , 2012 .

[8]  G. Martra,et al.  Bimetallic Gold–Palladium vapour derived catalysts: The role of structural features on their catalytic activity , 2012 .

[9]  G. Metha,et al.  Photoreduction kinetics of sodium tetrachloroaurate under synchrotron soft X-ray exposure. , 2011, Langmuir : the ACS journal of surfaces and colloids.

[10]  Y. Okada,et al.  New protein purification system using gold-magnetic beads and a novel peptide tag, "the methionine tag". , 2011, Bioconjugate chemistry.

[11]  S. Seino,et al.  Bimetallic nanoparticles of PtM (M = Au, Cu, Ni) supported on iron oxide: Radiolytic synthesis and CO oxidation catalysis , 2010 .

[12]  M. C. Feiters,et al.  Multitechnique Approach to Reveal the Mechanism of Copper(II)-Catalyzed Arylation Reactions , 2010 .

[13]  Carlos Perez Bergmann,et al.  H2SO4/HNO3/HCl—Functionalization and its effect on dispersion of carbon nanotubes in aqueous media , 2008 .

[14]  Takashi Nakagawa,et al.  Radiation induced synthesis of gold/iron-oxide composite nanoparticles using high-energy electron beam , 2008 .

[15]  E. Lacaze,et al.  X-ray radiolysis induced formation of silver nano-particles: A SAXS and UV–visible absorption spectroscopy study , 2007 .

[16]  T. Adschiri,et al.  Supercritical hydrothermal synthesis of organic–inorganic hybrid nanoparticles , 2007 .

[17]  S. Suzer,et al.  X-ray induced reduction of Au and Pt ions on silicon substrates , 2007 .

[18]  Gao Yun-zhi,et al.  High utilization platinum deposition on single-walled carbon nanotubes as catalysts for direct methanol fuel cell , 2007 .

[19]  H. Einaga,et al.  In situ XAFS studies of Au particle formation by photoreduction in polymer solutions. , 2007, Langmuir : the ACS journal of surfaces and colloids.

[20]  M. Newton,et al.  Comparative experimental and EXAFS studies in the Mizoroki-Heck reaction with heteroatom-functionalised N-heterocyclic carbene palladium catalysts. , 2007, Chemistry.

[21]  S. Shironita,et al.  Immobilization of noble metal nanoparticles on the surface of TiO2 by the sonochemical method: photocatalytic production of hydrogen from an aqueous solution of ethanol. , 2007, Ultrasonics sonochemistry.

[22]  A. Beale,et al.  Probing the influence of X-rays on aqueous copper solutions using time-resolved in situ combined video/X-ray absorption near-edge/ultraviolet-visible spectroscopy. , 2006, The journal of physical chemistry. B.

[23]  J. Belloni.  Nucleation, growth and properties of nanoclusters studied by radiation chemistry: Application to catalysis , 2006 .

[24]  H. Daimon,et al.  Size reduction of PtRu catalyst particle deposited on carbon support by addition of non-metallic elements , 2006 .

[25]  T. Mukherjee,et al.  Synthesis of Pt, Pd, Pt/Ag and Pd/Ag nanoparticles by microwave-polyol method , 2005 .

[26]  B. Weckhuysen,et al.  Synchrotron radiation effects on catalytic systems as probed with a combined in-situ UV-vis/XAFS spectroscopic setup. , 2005, The journal of physical chemistry. B.

[27]  Sefik Suzer,et al.  X-ray-induced production of gold nanoparticles on a SiO(2)/Si system and in a poly(methyl methacrylate) matrix. , 2005, Langmuir : the ACS journal of surfaces and colloids.

[28]  E. Lacaze,et al.  Synthesis of nanostructured metal-organic films: surface X-ray radiolysis of silver ions using a langmuir monolayer as a template. , 2004, Langmuir : the ACS journal of surfaces and colloids.

[29]  T. Nakayama,et al.  Magnetic evaluation of nanostructure of gold–iron composite particles synthesized by a reverse micelle method , 2003 .

[30]  A. Datye,et al.  The Preparation of Highly Dispersed Au/Al2O3 by Aqueous Impregnation , 2003 .

[31]  S. Giorgio,et al.  Core-shell bimetallic particles, prepared by sequential impregnations , 2002 .

[32]  X. Qiu,et al.  A new supported catalyst for methanol oxidation prepared by a reverse micelles method , 2002 .

[33]  I. Chou,et al.  Analysis of radiation-induced small Cu particle cluster formation in aqueous CuCl2 , 2001 .

[34]  Y. Maeda,et al.  SONOCHEMICAL PREPARATION OF BIMETALLIC NANOPARTICLES OF GOLD/PALLADIUM IN AQUEOUS SOLUTION , 1997 .

[35]  K. Okitsu.  Formation of noble metal particles by ultrasonic irradiation , 1996 .

[36]  G. Chow,et al.  Nanocrystalline metallic powders and films produced by the polyol method , 1995 .

[37]  J. Schwartz,et al.  Organometallics , 1987, Science.

[38]  M. Mostafavi,et al.  7 Radiation chemistry , 2000 .