High-energy conformer of formic acid in solid neon: Giant difference between the proton tunneling rates ofcismonomer andtrans-cisdimer

2007 ◽  
Vol 126 (24) ◽  
pp. 241102 ◽  
Author(s):  
Kseniya Marushkevich ◽  
Leonid Khriachtchev ◽  
Markku Räsänen
Keyword(s):  
Formic Acid ◽  
High Energy ◽  
Proton Tunneling ◽  
Tunneling Rates

A Silicon Microfabricated Direct Formic Acid Fuel Cell

2003 ◽  
Author(s):  
J. Yeom ◽  
G. Z. Mozsgai ◽  
A. Asthana ◽  
B. R. Flachsbart ◽  
P. Waszczuk ◽  
...  
Keyword(s):  
Fuel Cell ◽  
Formic Acid ◽  
Water Solution ◽  
Polymer Electrolyte Membrane ◽  
High Energy ◽  
Silicon Substrates ◽  
Promising Alternative ◽  
Electrolyte Membrane ◽  
Silicon Based ◽  
Acid Water Solution

A silicon-based microfabricated fuel cell running on formic acid has been developed to provide a high energy and power density power source on the millimeter size scale. A polymer electrolyte membrane fuel cell was fabricated utilizing the Nafion™112 membrane bonded between electrodes on silicon substrates. The cell was fueled by a concentrated formic acid-water solution and the catalyst used was Pt. The preliminary result shows that the microfabricated formic acid fuel cell may be a promising alternative for very small portable fuel cell applications.

Chemisorption Geometry, Vibrational Spectra, and Thermal Desorption of Formic Acid on TiO2(110)

1998 ◽  
Vol 05 (01) ◽  
pp. 381-385 ◽  
Author(s):  
S. A. Chambers ◽  
M. A. Henderson ◽  
Y. J. Kim ◽  
S. Thevuthasan
Keyword(s):  
Formic Acid ◽  
Photoelectron Spectroscopy ◽  
High Energy ◽  
Decomposition Products ◽  
X Ray ◽  
Low Energy Electron Diffraction ◽  
Resolution Electron ◽  
Low Energy Electron ◽  
Temperature Programmed ◽  
Electron Energy Loss

We have used high-energy X-ray photoelectron spectroscopy and diffraction (XPS/XPD), low-energy electron diffraction (LEED), high-resolution electron energy loss spectroscopy (HREELS) and temperature-programmed desorption (TPD) to determine the molecular orientation, long-range order, vibrational frequencies, and desorption temperatures for formic acid and its decomposition products on TiO 2(110). Molecular adsorption occurs at coverages approaching one monolayer, producing a weakly ordered (2 × 1) surface structure. High-energy XPD reveals that the formate binds rigidly in a bidentate fashion through the oxygens to Ti cation rows along the [001] direction with an O–C–O bond angle of 126 ± 4°. During TPD some surface protons and formate anions recombine and desorb as formic acid above 250 K. However, most of the decomposition products follow reaction pathways leading to H 2 O , CO and H 2 CO desorption. Water is formed in TPD below 500 K via the abstraction of lattice oxygen by deposited acid protons.

Proton Tunneling in Heterodimers of Carboxylic Acids: A Rotational Study of the Benzoic Acid–Formic Acid Bimolecule

2012 ◽  
Vol 3 (24) ◽  
pp. 3770-3775 ◽  
Author(s):  
Luca Evangelisti ◽  
Patricia Écija ◽  
Emilio J. Cocinero ◽  
Fernando Castaño ◽  
Alberto Lesarri ◽  
...  
Keyword(s):  
Benzoic Acid ◽  
Formic Acid ◽  
Carboxylic Acids ◽  
Proton Tunneling

High-energy conformer of formic acid in solid hydrogen: conformational change promoted by host excitation

2007 ◽  
Vol 9 (43) ◽  
pp. 5748 ◽  
Author(s):  
Kseniya Marushkevich ◽  
Leonid Khriachtchev ◽  
Markku Räsänen
Keyword(s):  
Formic Acid ◽  
Conformational Change ◽  
High Energy ◽  
Solid Hydrogen

Concave and duck web-like platinum nanopentagons with enhanced electrocatalytic properties for formic acid oxidation

2016 ◽  
Vol 4 (3) ◽  
pp. 807-812 ◽  
Author(s):  
Jianping Lai ◽  
Wenxin Niu ◽  
Suping Li ◽  
Fengxia Wu ◽  
Rafael Luque ◽  
...  
Keyword(s):  
Formic Acid ◽  
Formic Acid Oxidation ◽  
High Energy ◽  
Acid Oxidation ◽  
Twin Boundaries ◽  
Electrocatalytic Properties ◽  
Branched Structures

Pt-branched structures featuring concave and duck web-like nanopentagons with high-energy {110} and {554} facets, multiple twin boundaries, duck web-like edges and inherent anisotropic branches are prepared.

Symmetric Double Proton Tunneling in Formic Acid Dimer:  A Diabatic Basis Approach†

2008 ◽  
Vol 112 (2) ◽  
pp. 595-603 ◽  
Author(s):  
George L. Barnes ◽  
Shane M. Squires ◽  
Edwin L. Sibert
Keyword(s):  
Formic Acid ◽  
Proton Tunneling

Reversible Hybrid Aqueous Li−CO 2 Batteries with High Energy Density and Formic Acid Production

ChemSusChem ◽  
2020 ◽  
Vol 13 (10) ◽  
pp. 2621-2627
Author(s):  
Rui Yang ◽  
Zhen Peng ◽  
Jiafang Xie ◽  
Yiyin Huang ◽  
Rahul Anil Borse ◽  
...  
Keyword(s):  
Energy Density ◽  
Formic Acid ◽  
Acid Production ◽  
High Energy ◽  
High Energy Density
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