װ ȭа ΰ

Content on this page requires a newer version of Adobe Flash Player.

Get Adobe Flash player

 
ۼ : 12-07-03 09:47
[12.06]μ - Electroless Pt Deposition on Mn3O4 Nanoparticles via the Galvanic Replacement Process
-
 ۾ :
ȸ : 1,948  
   [ACS_Nano__2012__6__5122-5129].pdf (2.3M) [46] DATE : 2012-07-03 09:49:02

Electroless Pt Deposition on Mn3O4 Nanoparticles via the Galvanic Replacement Process : Electrocatalytic Nanocomposite with Enhanced Performance for Oxygen Reduction Reaction
-Ki Woong Kim,,^ Soo Min Kim,,^ Suhee Choi, Jongwon Kim,,* and In Su Lee,*

A novel electroless Pt deposition method was exploited by employing the galvanic replacement process occurring between the Mn3O4 surface and PtCl4 2 complexes. The newly discovered process provides a simple protocol to produce the catalytic nanocomposite, in which a high density of ultrafine Pt nanocrystals is stably immobilized in a homogeneously dispersive state on the surface of Mn3O4 nanoparticles. When the eletrocatalytic activity was tested for the oxygen reduction reaction, which limits the rate of the overall process in proton-exchange membrane fuel cells, the resulting Pt/Mn3O4 nanocomposite showed highly enhanced specific activity and durability, compared with those of the commercial Pt/C catalyst.


 
 

Total 77
ȣ     ۾ ¥ ȸ
32 [13.09] -Poly(norepinephrine): Ultrasmooth Material-Independent Surface Chemistry and Nanodepot for Nitric Oxide 09-04 1330
31 [13.07]ڹ -Fast Low Voltage Electroactive Actuators Using Nanostructured Polymer Electrolytes 07-30 1695
30 [13.07] -Photothermally Triggered Cytosolic Drug Delivery via Endosome Disruption Using a Functionalized Reduced Graphene Oxide 07-17 1478
29 [13.07]ڹ -Blue-Emitting Self-Assembled Polymer Electrolytes for Fast, Sensitive, Label-Free Detection of Cu(II) Ions in Aqueous Media 07-08 1224
28 [13.06]ö -Catalyst-free Direct Growth of a Single to a Few Layers of Graphene on a Germanium Nanowire for the Anode Material of a Lithium Battery 06-19 1362
27 [13.4]⹮ -Free-Standing, Single-Monomer-Thick Two-Dimensional Polymers through Covalent Self-Assembly in Solution 11-25 1256
26 [13.3]⹮ -Supramolecular Velcro for Reversible Underwater Adhesion 11-25 1133
25 [13.01] -Active Role of Proton in Excited State Intramolecular Proton Transfer Reaction 06-19 1427
24 [13.01]μ -Reversible and Cyclical Transformations between Solid and Hollow Nanostructures in Confined Reactions of Manganese Oxide and Silica within Nanosized Spheres 02-06 1649
23 [12.07] -Bioreducible polymers for gene silencing and delivery 09-06 1736
22 [12.07]ؿ - Following the DNA Ligation of a Single Duplex Using Atomic Force Microscopy 08-01 1650
21 [12.06]μ - Electroless Pt Deposition on Mn3O4 Nanoparticles via the Galvanic Replacement Process 07-03 1949
20 [12.06]Ž± -Surface-Dependent, Ligand-Mediated Photochemical Etching of CdSe Nanoplatelets 06-14 1640
19 [12.05]⹮ -In Situ Supramolecular Assembly and ModularModification of Hyaluronic Acid Hydrogels for 3D Cellular Engineering 11-25 950
18 [12.01] -Coherent Electronic and Phononic Oscillations in Single-Walled 03-05 1864
 1  2  3  4  5  6  

Content on this page requires a newer version of Adobe Flash Player.

Get Adobe Flash player