Literature DB >> 24762053

Revealing the atomic restructuring of Pt-Co nanoparticles.

Huolin L Xin1, Selim Alayoglu, Runzhe Tao, Arda Genc, Chong-Min Wang, Libor Kovarik, Eric A Stach, Lin-Wang Wang, Miquel Salmeron, Gabor A Somorjai, Haimei Zheng.   

Abstract

We studied Pt-Co bimetallic nanoparticles during oxidation in O2 and reduction in H2 atmospheres using an aberration corrected environmental transmission electron microscope. During oxidation Co migrates to the nanoparticle surface forming a strained epitaxial CoO film. It subsequently forms islands via strain relaxation. The atomic restructuring is captured as a function of time. During reduction cobalt migrates back to the bulk, leaving a monolayer of platinum on the surface.

Entities:  

Year:  2014        PMID： 24762053     DOI： 10.1021/nl500553a

Source DB:  PubMed          Journal:  Nano Lett        ISSN： 1530-6984            Impact factor:   11.189


  8 in total

1.  Dynamic restructuring drives catalytic activity on nanoporous gold-silver alloy catalysts.

Authors:  Branko Zugic; Lucun Wang; Christian Heine; Dmitri N Zakharov; Barbara A J Lechner; Eric A Stach; Juergen Biener; Miquel Salmeron; Robert J Madix; Cynthia M Friend
Journal:  Nat Mater       Date:  2016-12-19       Impact factor: 43.841

2.  Complex structural dynamics of nanocatalysts revealed in Operando conditions by correlated imaging and spectroscopy probes.

Authors:  Y Li; D Zakharov; S Zhao; R Tappero; U Jung; A Elsen; Ph Baumann; R G Nuzzo; E A Stach; A I Frenkel
Journal:  Nat Commun       Date:  2015-06-29       Impact factor: 14.919

3.  Interrogation of bimetallic particle oxidation in three dimensions at the nanoscale.

Authors:  Lili Han; Qingping Meng; Deli Wang; Yimei Zhu; Jie Wang; Xiwen Du; Eric A Stach; Huolin L Xin
Journal:  Nat Commun       Date:  2016-12-08       Impact factor: 14.919

4.  In situ atomic-scale observation of oxygen-driven core-shell formation in Pt3Co nanoparticles.

Authors:  Sheng Dai; Yuan You; Shuyi Zhang; Wei Cai; Mingjie Xu; Lin Xie; Ruqian Wu; George W Graham; Xiaoqing Pan
Journal:  Nat Commun       Date:  2017-08-07       Impact factor: 14.919

5.  Boosting hot electron flux and catalytic activity at metal-oxide interfaces of PtCo bimetallic nanoparticles.

Authors:  Hyosun Lee; Juhyung Lim; Changhwan Lee; Seoin Back; Kwangjin An; Jae Won Shin; Ryong Ryoo; Yousung Jung; Jeong Young Park
Journal:  Nat Commun       Date:  2018-06-08       Impact factor: 14.919

6.  Adsorbate-driven reactive interfacial Pt-NiO1-x nanostructure formation on the Pt3Ni(111) alloy surface.

Authors:  Jeongjin Kim; Woong Hyeon Park; Won Hui Doh; Si Woo Lee; Myung Cheol Noh; Jean-Jacques Gallet; Fabrice Bournel; Hiroshi Kondoh; Kazuhiko Mase; Yousung Jung; Bongjin Simon Mun; Jeong Young Park
Journal:  Sci Adv       Date:  2018-07-13       Impact factor: 14.136

7.  Ultrafast Microwave Nano-manufacturing of Fullerene-Like Metal Chalcogenides.

Authors:  Zhen Liu; Lin Zhang; Ruigang Wang; Selcuk Poyraz; Jonathan Cook; Michael J Bozack; Siddhartha Das; Xinyu Zhang; Liangbing Hu
Journal:  Sci Rep       Date:  2016-03-02       Impact factor: 4.379

8.  In Situ Observation of Atomic Redistribution in Alloying Gold-Silver Nanorods.

Authors:  Jessi E S van der Hoeven; Tom A J Welling; Tiago A G Silva; Jeroen E van den Reijen; Camille La Fontaine; Xavier Carrier; Catherine Louis; Alfons van Blaaderen; Petra E de Jongh
Journal:  ACS Nano       Date:  2018-07-20       Impact factor: 15.881
  8 in total

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