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

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.

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.

scholarly journals The Blind Showing The Way To The Sighted

1994 ◽  
Vol 2 (1) ◽  
pp. 7-7
Author(s):  
Jean-Paul Revel
Keyword(s):  
Conformational Change ◽  
High Energy ◽  
Mechanical Work ◽  
Original State ◽  
Spatially Resolved ◽  
Starting Point ◽  
Hydrolysis Of ◽  
Microscopic Techniques ◽  
Biological Motors ◽  
The Way

When one speaks of microscopes one usually imagines devices which produce spatially resolved images. So it is most intriguing when a novel application of microscopic techniques permits discoveries not by forming images but by allowing very precise measurements to be made on very small objects. The blind showing the way to the sighted! A recent paper in Nature is a good example of what I speak. It deals with biological motors, which, as cell biologists are learning, are involved in the movement of cells and the movements of organelles within cells. There are a number of different biological motors, but all are molecules which change shape, as they convert the chemical energy derived from the hydrolysis of high energy molecules such as ATP, into mechanical work. As the motor molecules undergo this conformational change and then return to their original state they take a step away from their starting point, dragging along the structures to which they are attached.

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

Nanostructured Catalysts Synthesized by High-Energy Mechanical Alloying for Formic Acid Electrochemical Oxidation

2017 ◽  
Vol 8 (5) ◽  
pp. 472-479 ◽  
Author(s):  
A. Ezeta-Mejía ◽  
M. G. Montes de Oca-Yemha ◽  
E. M. Arce-Estrada ◽  
M. Romero-Romo ◽  
M. Palomar-Pardavé
Keyword(s):  
Mechanical Alloying ◽  
Formic Acid ◽  
Electrochemical Oxidation ◽  
Nanostructured Catalysts ◽  
High Energy

scholarly journals HIGH ENERGY HELIUM-ION IRRADIATION OF FORMIC ACID IN AQUEOUS SOLUTION1

1952 ◽  
Vol 74 (16) ◽  
pp. 4216-4216 ◽  
Author(s):  
Warren M. Garrison ◽  
Donald C. Morrison ◽  
Herman R. Haymond ◽  
Joseph G. Hamilton
Keyword(s):  
Formic Acid ◽  
Ion Irradiation ◽  
High Energy ◽  
Helium Ion
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