Journal ArticleDOI
Adlineation, Portholes and Spillover
TLDR
In this article, the role of water in the Pt-WO3 system was investigated and it was shown that if the WO3 was mixed with platinum black and also if water was preadsorbed on the mixture prior to admitting hydrogen to the system, the reduction did not take place at all at room temperature.Abstract:
It was found that yellow WOs could be reduced at room temperature by molecular hydrogen to form blue solids, the hydrogen analogs of tungsten bronzes with a molar composition of H0.35WO3. But this was possible only if the WO3 was mixed with platinum black and also if water was preadsorbed on the mixture prior to admitting hydrogen to the system. If either one of these conditions was not satisfied, reduction did not take place at all at room temperature. Additional observations of spillover in this and similar systems are reported in this paper. They throw more light on the role of water in the Pt— WO3 system, show the generality of the phenomenon and stress its importance in adsorption, solid state reactions and surface catalysis.read more
Citations
More filters
Reference EntryDOI
5.3.2 Spillover Effects
TL;DR: In this article, an individual step of the Hydrogen Spillover Process is described and an overview of the nature of filling hydrogen species is presented, along with an analysis of the NEMCA effect.
Journal ArticleDOI
The reaction of HV(CO)4dppe with MoO3: a well-defined model of hydrogen spillover
Abdulhamid H. Almidani,Michael Benz,Mario Winkler,Yuji Ikeda,Blazej Grabowski,Joris van Slageren,Deven P. Estes +6 more
TL;DR: In this paper, it was shown that HV(CO)4dppe (1) transfers H˙ to MoO3 in separate H+ and e− transfer steps.
Journal ArticleDOI
Structure of the HOO-N=N-OOH intermediate in hydrogen peroxide activation of N2: Quantum chemical DFT calculations
TL;DR: In this paper, the electronic and geometric structure of the HOO-N=N-OOH intermediate in the activation reaction of molecular nitrogen is performed by the density functional theory method at the B3LYP/6-311++G(3df,3pd) level.
Book ChapterDOI
Hydrogen Spill-Over During The Reduction of a Ni(OH)2/Cr2O3 Solid With Ni-Cr Alloy Formation
H. Praliaud,G.A. Martin +1 more
TL;DR: In this article, the reduction of Ni(OH) 2 /Cr 2 O 3 precursors by hydrogen at low heating rates (2 K/min) and temperatures above 973 K results in the formation of a Ni-Cr alloy containing 12 at.
Book ChapterDOI
Primary Oxide Latent Storage and Spillover for Reversible Electrocatalysis in Oxygen and Hydrogen Electrode Reactions
TL;DR: In this paper, the main electrocatalytic challenge has been to establish the reversible oxygen electrode (ROE) to take advantage of the entire thermodynamically available current/voltage range between hydrogen and oxygen evolving limits.