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Title: Thin-channel electrospray emitter

Abstract

An electrospray device includes a high voltage electrode chamber. The high voltage electrode chamber includes an inlet for receiving a fluid to be ionized and for directing the fluid into the chamber and at least one electrode having an exposed surface within the chamber. A flow channel directs fluid over a surface of the electrode and out of the chamber. The length of the flow channel over the electrode is greater than the height of the flow channel over the electrode, thereby producing enhanced mass transport to the working electrode resulting in improved electrolysis efficiency. An outlet is provided for transmitting the fluid out from the electrode chamber. A method of creating charged droplets includes flowing a fluid over an electrode where the length over the electrode is greater than the height of the fluid flowing over the electrode.

Inventors:
Issue Date:
Research Org.:
Oak Ridge National Lab. (ORNL), Oak Ridge, TN (United States)
Sponsoring Org.:
USDOE
OSTI Identifier:
1175008
Patent Number(s):
6784439
Application Number:
09/910,269
Assignee:
UT Battelle, LLC (Oak Ridge, TN)
Patent Classifications (CPCs):
Y - NEW / CROSS SECTIONAL TECHNOLOGIES Y10 - TECHNICAL SUBJECTS COVERED BY FORMER USPC Y10T - TECHNICAL SUBJECTS COVERED BY FORMER US CLASSIFICATION
H - ELECTRICITY H01 - BASIC ELECTRIC ELEMENTS H01J - ELECTRIC DISCHARGE TUBES OR DISCHARGE LAMPS
DOE Contract Number:  
AC05-00OR22725
Resource Type:
Patent
Country of Publication:
United States
Language:
English
Subject:
42 ENGINEERING

Citation Formats

Van Berkel, Gary J. Thin-channel electrospray emitter. United States: N. p., 2004. Web.
Van Berkel, Gary J. Thin-channel electrospray emitter. United States.
Van Berkel, Gary J. Tue . "Thin-channel electrospray emitter". United States. https://www.osti.gov/servlets/purl/1175008.
@article{osti_1175008,
title = {Thin-channel electrospray emitter},
author = {Van Berkel, Gary J.},
abstractNote = {An electrospray device includes a high voltage electrode chamber. The high voltage electrode chamber includes an inlet for receiving a fluid to be ionized and for directing the fluid into the chamber and at least one electrode having an exposed surface within the chamber. A flow channel directs fluid over a surface of the electrode and out of the chamber. The length of the flow channel over the electrode is greater than the height of the flow channel over the electrode, thereby producing enhanced mass transport to the working electrode resulting in improved electrolysis efficiency. An outlet is provided for transmitting the fluid out from the electrode chamber. A method of creating charged droplets includes flowing a fluid over an electrode where the length over the electrode is greater than the height of the fluid flowing over the electrode.},
doi = {},
journal = {},
number = ,
volume = ,
place = {United States},
year = {2004},
month = {8}
}

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Works referenced in this record:

Characterization of an Electrospray Ion Source as a Controlled-Current Electrolytic Cell
journal, September 1995


Derivatization for Electrospray Ionization Mass Spectrometry. 3. Electrochemically Ionizable Derivatives
journal, April 1998


Changes in bulk solution pH caused by the inherent controlled-current electrolytic process of an electrospray ion source
journal, March 1997


Minimizing analyte electrolysis in an electrospray emitter
journal, January 2001


Electrochemical processes in a wire-in-a-capillary bulk-loaded, nano-electrospray emitter
journal, July 2001


Electrochemical origin of radical cations observed in electrospray ionization mass spectra
journal, July 1992


Electrochemistry Combined Online with Electrospray Mass Spectrometry
journal, October 1995