366,579 research outputs found
Recommended from our members
Ninfa Rodriguez shakes senator Carlos Truan's hand as he receives award from the Robstown Ladies Auxiliary (photograph)
Ninfa Rodriguez shakes senator Carlos Truan's hand as he receives award from the Robstown Ladies Auxiliary
Recommended from our members
Ninfa Rodriguez shakes senator Carlos Truan's hand as he receives award from the Robstown Ladies Auxiliary (photograph)
Ninfa Rodriguez shakes senator Carlos Truan's hand as he receives award from the Robstown Ladies Auxiliary
Recommended from our members
Oral History Interview with Dalilah Rodriguez (sound recording)
Oral history interview of Dalilah Rodriguez conducted by TAMU-CC student Theresa Valli. Dalilah talks about her and her family's experience during Hurricane Harvey and its aftermath
Electrocatalysts for oxygen evolution reaction : Innovative investigation methods for screening and mechanisms
The oxygen evolution reaction is one of the most important electrochemical phenomena, especially for both its implications in energy conversion devices (electrochemical and photoelectrochemical water splitting) and for its importance in life science.
Quite recently, new investigative methods based on the use of microelectrodes (the scanning electrochemical microscope and the cavity-microelectrode1,2) have opened new paths for understanding fundamental mechanisms in electrocatalysis in general, and for oxygen evolution reaction in particular. At the same time, new methods for the rapid screening and for the visualization of the experimental data have been developed and applied to different materials.
The rapid screening methods are based on the use of SECM, in the sg-tc mode, by adopting the innovative “shielded tip” approach3, or by applying a pulsed potential profile at the substrate. With these methods, mixtures of SnO2-IrO2 were studied.
The selection of the right material for practical applications also implies a knowledge of the candidates’ behaviour under different conditions (applied potential, pH). In this case, the collection of experimental could be in vain without an effective method of displaying them. For this reason, a new kind of 3D diagram, the dynamic potential/pH plot4 (DPPDs) is proposed for different materials.
1. Rodriguez Lopez, J.; Minguzzi, A.; Bard, A.J. J. Phys. Chem. C. 2010, 114, 18645
2. Locatelli, C.; Minguzzi, A.; Cava, P.; Vertova, A.; Rondinini, S. Anal. Chem. 2011, 83, 2819
3. Minguzzi, A.; Apulche-Aviles, M. A.; Rodriguez Lopez, J.; Rondinini, S.; Bard, A.J. Anal. Chem. 2008, 80, 4055.
4 Minguzzi, A.; Fan F.-R. F., Vertova A., Rondinini S., Bard A.J., in preparatio
Tabula remissionum rerum omnium : quae continentur in libris R.P.F. Didaci de Stella de Vanitate seculi & meditationibus Amoris Dei, in qua quae Euangeliorum considerationibus ... adaptari possunt quasi digito demonstratur
Colofón sin el ed., en r. de 2T\b8\sExisten ejemplares con variantes en primer cuadernillo, con sign. [calderón]\p8\s y port. con esc. xil. nobiliario (Ruiz Fidalgo, 1140 B)ColofónSign.: [cruz latina]\p8\s, [ ]\p2\s, A-Z\p8\s, 2A-2T\p8\sPort. con esc. xil. de los franciscano
Debbie Rodriguez oral history interview.
1 sound file. Duration: 1 hr., 43 min. Title supplied by cataloger. Accompanied by 1 finding aid.This interview is part of the Southwest Collection's oral history series on Lubbock's Hispanic community. Debbie Rodriguez discusses her background and her current involvement in Hispanic traditions through being a ballet folklórico dance instructor. In particular, she discusses her dance troupe Ballet Folklórico Nuestra Herencia and their annual La Guelaguetz
Armando Rodriguez oral history interview.
1 sound file. Duration: 1 hr., 02 min. Title supplied by cataloger. Accompanied by 1 finding aid.Armando Rodriguez, a long-time Lubbock resident, currently employed at Texas Tech University's KTXT Channel 5 Public Broadcasting Station, reminisces about his life
[Affidavit of Joe Rodriguez Molina, November 23, 1963]
In an affidavit, Joe Rodriguez Molina states that he was born in Dallas, Texas and has been employed at the Texas Book Depository for sixteen years. Molina was a member of the G. I. Forum from 1955 to 1962
Recent developments on the rapid screening of electrocatalysts by scanning electrochemical microscopy
Scanning Electrochemical Microscopy is a scanning probe technique which is
becoming a leading electrochemical technique. The possibility of using a movable
microelectrode which can be scanned over a surface is one of the most attractive
features. In turn, the substrate can assume different natures, from biological systems to
electrocatalytic surface, from photoactive materials to nanostructured textures, thus
making the technique extremely flexible.
In the most recent years, SECM is being applied to study libraries of materials useful as
electrocatalysts or photoelectrocatalysts in energy conversion devices
1-3
.
In this work, recent results on the rapid screening of electrochemical activity of
material libraries toward the oxygen evolution/reduction reactions are shown and
discussed.
The effectiveness of these methods is proved by digital simulations.
Both methods were applied on model mixtures based on the Ir-O system, considered as
promising materials for the preparation of operative devices.
Experimental results obtained by SECM are confirmed by voltamperometric and
physico-chemical techniques.
1. Férnandez J.L.,. Walsh D. A, Bard A.J., J. Am. Chem. Soc. 2005, 127, 357-365
2. Minguzzi, A.; Apulche-Aviles, M. A.; Rodriguez Lopez, J.; Rondinini, S.; Bard, A.J.
Anal. Chem. 2008, 80, 4055.
3 Lee J., Ye H., Pan S., Bard A. J., Anal. Chem. 2008, 80, 744
Oral History Interview with Armando Rodriguez, July 14, 2016
Armando S. Rodriguez was born and raised in south Odessa, Texas. He attended Ector County High School, where he was senior class president. As the class president, Rodriguez led a school walkout to demand that advance academic classes be offered in the majority minority school. He later attended St. Mary’s University in San Antonio and is now an Ector County Commissioner
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