Literature DB >> 19350604

Adsorbate-induced surface segregation for core-shell nanocatalysts.

Karl J J Mayrhofer1, Viktorija Juhart, Katrin Hartl, Marianne Hanzlik, Matthias Arenz.   

Abstract

Coming to the surface: The surface composition of carbon-supported Pt(3)Co catalyst particles changes upon a CO-annealing treatment. Platinum atoms segregate to the particle surface so that nanoparticles with a platinum shell surrounding an alloy core are formed. This modified catalyst has a superior activity in the oxygen reduction reaction compared to both a plain platinum catalyst and the untreated alloy particles.

Entities:  

Year:  2009        PMID： 19350604     DOI： 10.1002/anie.200806209

Source DB:  PubMed          Journal:  Angew Chem Int Ed Engl        ISSN： 1433-7851            Impact factor:   15.336


  11 in total

1.  Compositional segregation in shaped Pt alloy nanoparticles and their structural behaviour during electrocatalysis.

Authors:  Chunhua Cui; Lin Gan; Marc Heggen; Stefan Rudi; Peter Strasser
Journal:  Nat Mater       Date:  2013-06-16       Impact factor: 43.841

2.  Core@shell bimetallic nanoparticle synthesis via anion coordination.

Authors:  Christopher J Serpell; James Cookson; Dogan Ozkaya; Paul D Beer
Journal:  Nat Chem       Date:  2011-04-24       Impact factor: 24.427

3.  Alloys of platinum and early transition metals as oxygen reduction electrocatalysts.

Authors:  J Greeley; I E L Stephens; A S Bondarenko; T P Johansson; H A Hansen; T F Jaramillo; J Rossmeisl; I Chorkendorff; J K Nørskov
Journal:  Nat Chem       Date:  2009-09-23       Impact factor: 24.427

4.  Supported core@shell electrocatalysts for fuel cells: close encounter with reality.

Authors:  Seung Jun Hwang; Sung Jong Yoo; Jungho Shin; Yong-Hun Cho; Jong Hyun Jang; Eunae Cho; Yung-Eun Sung; Suk Woo Nam; Tae-Hoon Lim; Seung-Cheol Lee; Soo-Kil Kim
Journal:  Sci Rep       Date:  2013       Impact factor: 4.379

5.  Transition metal alloying effect on the phosphoric acid adsorption strength of Pt nanoparticles: an experimental and density functional theory study.

Authors:  Hee-Young Park; Dong-Hee Lim; Sung Jong Yoo; Hyoung-Juhn Kim; Dirk Henkensmeier; Jin Young Kim; Hyung Chul Ham; Jong Hyun Jang
Journal:  Sci Rep       Date:  2017-08-03       Impact factor: 4.379

6.  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

Review 7.  Noble Metal-Based Multimetallic Nanoparticles for Electrocatalytic Applications.

Authors:  Hyunjoong Kim; Tae Yong Yoo; Megalamane S Bootharaju; Jeong Hyun Kim; Dong Young Chung; Taeghwan Hyeon
Journal:  Adv Sci (Weinh)       Date:  2021-11-17       Impact factor: 16.806

8.  Solvent-surface interactions control the phase structure in laser-generated iron-gold core-shell nanoparticles.

Authors:  Philipp Wagener; Jurij Jakobi; Christoph Rehbock; Venkata Sai Kiran Chakravadhanula; Claas Thede; Ulf Wiedwald; Mathias Bartsch; Lorenz Kienle; Stephan Barcikowski
Journal:  Sci Rep       Date:  2016-03-23       Impact factor: 4.379

9.  Tailoring the Anodic Hafnium Oxide Morphology Using Different Organic Solvent Electrolytes.

Authors:  Arlete Apolinário; Célia T Sousa; Gonçalo N P Oliveira; Armandina M L Lopes; João Ventura; Luísa Andrade; Adélio Mendes; João P Araújo
Journal:  Nanomaterials (Basel)       Date:  2020-02-22       Impact factor: 5.076

10.  Operando NRIXS and XAFS Investigation of Segregation Phenomena in Fe-Cu and Fe-Ag Nanoparticle Catalysts during CO2 Electroreduction.

Authors:  Sebastian Kunze; Philipp Grosse; Miguel Bernal Lopez; Ilya Sinev; Ioannis Zegkinoglou; Hemma Mistry; Janis Timoshenko; Michael Y Hu; Jiyong Zhao; Ercan E Alp; See Wee Chee; Beatriz Roldan Cuenya
Journal:  Angew Chem Int Ed Engl       Date:  2020-10-06       Impact factor: 15.336
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