Ultrafast Synthesis of Calcium Vanadate for Superior Aqueous Calcium-Ion Battery

Authors: Liyuan Liu, Yih-Chyng Wu, Patrick Rozier, Pierre-Louis Taberna, and Patrice Simon

Journal: Research, vol. 2019

In Situ Evaluation of Anticancer Monoclonal Antibody Nivolumab‐DNA Interaction Using a DNA‐Electrochemical Biosensor

Authors: Wesley B. S. Machini Nuno V. Marques Prof. Dr. Ana Maria Oliveira‐Brett


Journal: ChemElectroChem 2019

Electropolymerization of thiazole derivative bearing thiophene and its application in capacitors and electrochromic devices

Authors: Kyoung-Sik Choi, Ji Woong Han, Min Hyung Kim, Miyeon Yoon, Yang-Rae Kim, In Tae Kim


Journal: Journal of Electroanalytical Chemistry, 2019

Publication on AWSensors technology

Correlation between the interfacial ion dynamics and charge storage properties of poly(ortho-phenylenediamine) electrodes exhibiting high cycling stability

Authors: El Mahdi Halim, Rezan Demir-Cakan, Hubert Perrot, Mama El Rhazi, Ozlem Sel

Journal: The Journal of Power Sources (2019)

 

Abstract

An integrated electrogravimetric study based on electrochemical quartz crystal microbalance (EQCM) unravels the interfacial ion transfer phenomena of the poly(ortho-phenylenediamine) (PoPD) thin film electrodes. Through a methodology coupling QCM with electrochemical impedance spectroscopy (ac-electrogravimetry), our work indicates that charge compensation process of PoPD in aqueous electrolytes (in acidified NaCl) occurs with the participation of multiple species, each playing a role at different temporal scales. The PoPD films are tested in a 2 electrode Swagelok cell in which Zn is used as both reference and counter electrodes and exhibit excellent stability over 8000 cycles with a relatively high specific capacitance of about 110 F g−1 at 30 C (0.63 mA cm−2) current density. The high rate capability and the excellent cycling stability of the PoPD electrodes are correlated to the electrolyte composition and the significant role of H+ to the charge compensation process is unravelled, which is made possible with coupled electrogravimetric methods of our study. By determining the interfacial flux dynamics and as well as the relative proportions of species transferred at the electrode/electrolyte interface, our results contribute to the understanding of the charge-discharge process of PoPD polymer, yet underexplored but emerging as a pseudo-capacitive electrode material.

You may read the full paper here.

Ultraflat Gold QCM Electrodes Fabricated with Pressure-Forming Template Stripping for Protein Studies at the Nanoscale

Authors: Juan A. Rubio-Lara, Frederik Bergler, Simon J. Attwood, J. Michael Edwardson, Mark E. Welland


Journal: Langmuir, 2019

Validation of quartz crystal rheometry in the megahertz frequency regime

Authors: David E. Delgado, Lauren F. Sturdy, Craig W. Burkhart, Kenneth R. Shull

Journal: Inc. J. Polym. Sci., Part B: Polym. Phys. 2019

Versatile and High-Throughput Polyelectrolyte Complex Membranes via Phase Inversion

Authors: Kazi Sadman, David E. Delgado, Yechan Won, Qifeng Wang, Kimberly A. Gray, Kenneth R. Shull


Journal: ACS Appl. Mater. Interfaces, 2019, 11(17), 16018-16026.

3D-printed Point-of-Care Platform for Genetic Testing of Infectious Diseases Directly in Human Samples Using Acoustic Sensors and a Smartphone

Authors:
George Papadakis, Alexandros K. Pantazis, Maria Ntogka, Konstantinos Parasyris, Gesthimani-Ioanna Theodosi, Georgia Kaprou, Electra Gizeli

Journal:
ACS Sens. 2019, 45, 1329-1336

Examination of High Frequency MHz Rheology of Filled Polymer Composites and Photopolymers

Author:
Chyi-Huey Joshua Ye

Ph.D. Thesis

Northwestern University, Department of Materials Science and Engineering, September, 2017

Enhancement of Sensitivity in Measurement of Small Molecules by Surface Acoustic Wave Immunobiosensors

Authors: Ş. Şeyda Pirinçci, Özlem Ertekin, Zafer Ziya Öztürk, Selma Öztürk

Conference: Fourth International Congress on Biomaterials and Biosensors (BIOMATSEN 2019)