Open Access
Structural Dependence of Oxygen Reduction Reaction on Palladium Nanocrystals
Minhua Shao,Taekyung Yu,Jonathan H. Odell,Mingshang Jin,Younan Xia +4 more
- Iss: 16, pp 1011-1011
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TLDR
The ORR activity of Pd nanocubes was one order of magnitude higher than that of PD octahedra, and comparable to that of the state-of-the-art Pt catalysts.Abstract:
We have synthesized sub-10 nm Pd cubic and octahedral nanocrystals and then evaluated their activities towards oxygen reduction reaction (ORR). The ORR activity of Pd nanocubes was one order of magnitude higher than that of Pd octahedra, and comparable to that of the state-of-the-art Pt catalysts.read more
Citations
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Facet design promotes electroreduction of carbon dioxide to carbon monoxide on palladium nanocrystals
Hao Dong,Lei Zhang,Piaoping Yang,Xiaoxia Chang,Wenjin Zhu,Xiaohong Ren,Zhi-Jian Zhao,Jinlong Gong +7 more
TL;DR: In this article, the surface structure of Pd catalysts enclosed with {3,1,0}, {1, 0, 0} and {1, 1, 1, 1} facets was investigated.
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Performance of facet-controlled Pd nanocrystals in 2-ethylanthraquinone hydrogenation
TL;DR: In this article, single-crystal Pd nanocrystals with exposed (100) and (111) facets were prepared and their catalytic performance were compared in 2-ethylanthraquinone hydrogenation reaction through immobilization on γ-Al2O3 as catalyst.
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Five-Fold Twinned Pd Nanorods and Their Use as Templates for the Synthesis of Bimetallic or Hollow Nanostructures
Hongwen Huang,Hongwen Huang,Lei Zhang,Tian Lv,Aleksey Ruditskiy,Jingyue Liu,Zhizhen Ye,Younan Xia,Younan Xia +8 more
TL;DR: In this article, the use of seed-mediated growth for the facile synthesis of five-fold twinned Pd nanorods with controlled diameters in the range of 6-16-nm and tunable lengths up to 81-nm was reported.
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Highly active and durable Pd nanoparticles-porous graphitic carbon nitride composite for electrocatalytic oxygen reduction reaction
TL;DR: In this paper, the performance of palladium nanoparticles-carbon nitride (Pd-CNx) composite was investigated in both alkaline and acid media. And the results showed that the nanoparticles exhibit excellent methanol tolerance and have much better long term durability than that of commercial Pt/C in both acidic and alkaline media.
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Intermetallic Pd3Pb nanocubes with high selectivity for the 4-electron oxygen reduction reaction pathway
Jocelyn T. L. Gamler,Kihyun Shin,Hannah M. Ashberry,Yifan Chen,Yifan Chen,Sandra L. A. Bueno,Yawen Tang,Graeme Henkelman,Sara E. Skrabalak +8 more
TL;DR: Results show that intermetallic Pd3Pb nanocubes are highly efficient for the 4-electron pathway of the ORR and could inspire the study of other shape-controlled intermetallics as catalysts for fuel cell applications.
References
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Journal ArticleDOI
Origin of the Overpotential for Oxygen Reduction at a Fuel-Cell Cathode
Jens K. Nørskov,Jan Rossmeisl,and Ashildur Logadottir,L. Lindqvist,John R. Kitchin,Thomas Bligaard,Hannes Jónsson +6 more
TL;DR: In this paper, the stability of reaction intermediates of electrochemical processes on the basis of electronic structure calculations was analyzed and a detailed description of the free energy landscape of the electrochemical oxygen reduction reaction over Pt(111) as a function of applied bias was presented.
Journal ArticleDOI
Activity benchmarks and requirements for Pt, Pt-alloy, and non-Pt oxygen reduction catalysts for PEMFCs
TL;DR: In this article, the authors quantified the activities and voltage loss modes for state-of-the-art MEAs (membrane electrode assemblies), specifies performance goals needed for automotive application, and provides benchmark oxygen reduction activities for state of the art platinum electrocatalysts.
Journal ArticleDOI
Improved Oxygen Reduction Activity on Pt3Ni(111) via Increased Surface Site Availability
Vojislav R. Stamenkovic,Vojislav R. Stamenkovic,Ben Fowler,Bongjin Simon Mun,Guofeng Wang,Philip N. Ross,Chris Lucas,Nenad M. Markovic +7 more
TL;DR: It is demonstrated that the Pt3Ni( 111) surface is 10-fold more active for the ORR than the corresponding Pt(111) surface and 90-foldMore active than the current state-of-the-art Pt/C catalysts for PEMFC.
Book
Handbook of fuel cells : fundamentals technology and applications
TL;DR: In this article, the authors present a survey of fuel cell technologies and applications, focusing on hydrogen storage, hydrogen generation, and other energy conversion related topics, as well as their applications.
Journal ArticleDOI
Oxygen Reduction Reaction on Pt and Pt Bimetallic Surfaces: A Selective Review
TL;DR: In this article, a review of recent progress in the development of the oxygen reduction reaction (ORR) catalysis on well-defined surfaces is presented, focusing on two type of metallic surfaces: platinum single crystals and bimetallic surfaces based on platinum.