Anna Ignaszak

ORCID: 0000-0002-9089-2828
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About
Contact & Profiles
Research Areas
  • Electrocatalysts for Energy Conversion
  • Supercapacitor Materials and Fabrication
  • Conducting polymers and applications
  • Fuel Cells and Related Materials
  • Crystallization and Solubility Studies
  • Advanced battery technologies research
  • X-ray Diffraction in Crystallography
  • Advanced Sensor and Energy Harvesting Materials
  • Advancements in Battery Materials
  • Advanced Battery Materials and Technologies
  • Advanced biosensing and bioanalysis techniques
  • Electrochemical sensors and biosensors
  • Catalytic Processes in Materials Science
  • Advanced Photocatalysis Techniques
  • Biosensors and Analytical Detection
  • Electrochemical Analysis and Applications
  • TiO2 Photocatalysis and Solar Cells
  • Molecular Junctions and Nanostructures
  • Copper-based nanomaterials and applications
  • Microbial Inactivation Methods
  • Mosquito-borne diseases and control
  • Metalloenzymes and iron-sulfur proteins
  • Vector-borne infectious diseases
  • Magnetism in coordination complexes
  • Ammonia Synthesis and Nitrogen Reduction

University of New Brunswick
2015-2024

University of Fredericton
2017-2020

Central South University
2017

Changsha University
2017

Friedrich Schiller University Jena
2014-2016

Schiller International University
2014-2015

University of British Columbia
2008-2013

BC Innovation Council
2010-2013

National Research Council Canada
2012-2013

National Academies of Sciences, Engineering, and Medicine
2012

This review focuses on polyhedron-engineered Pt-based nanocrystals as highly active ORR catalysts for PEMFCs.

10.1039/c7ee02444d article EN Energy & Environmental Science 2017-12-18

Flexible supercapacitors with considerable energy storage performance from green/sustainable materials have attracted significant attention in many fields, such as portable and wearable electronics. In this work, flexible cellulose nanofibers/reduced graphene oxide/polypyrrole (CNFs/rGO/PPy) aerogel electrodes well-defined three-dimensional porous structures are prepared using citric acid-Fe3+ (CA-Fe3+) complexes oxidant precursors to command the deposition of PPy. The situ gradual release...

10.1021/acssuschemeng.9b00321 article EN ACS Sustainable Chemistry & Engineering 2019-05-30

Carbon/polypyrrole (PPy) composites are promising electrode materials for energy storage applications such as lightweight capacitors. Although these composed of relatively inexpensive components, there is a gap knowledge regarding the correlation between surface, porosity, ion exchange dynamics, and interplay double layer capacitance pseudocapacitance. In this work we evaluate specific surface area analyzed by BET method accessible ions using electrochemical quartz-crystal microbalance...

10.1021/acs.langmuir.6b00523 article EN Langmuir 2016-04-15

Due to their large specific surface areas and porosity, metal-organic frameworks (MOFs) have found many applications in catalysis, gas separation, storage. However, use as electronic components such supercapacitors is stunted due poor electrical conductivity. We report a remedy for this by combining the MOF structure with polypyrrole (PPy), well-known conductive polymer. Three MOFs are studied modification end: CPO-27-Ni CPO-27-Co (M2DOBDC, M = Ni2+, Co2+, DOBDC...

10.1039/d0ra02154g article EN cc-by-nc RSC Advances 2020-01-01

Herein, advancements in electroanalytical devices for the simultaneous detection of diverse breast cancer (BC) markers are demonstrated. This article identifies several important areas exploration electrochemical diagnostics and highlights factors that pivotal successful deployment novel bioanalytical devices. We have highlighted limits (LOD) reported multiplex biosensor can surpass sensitivity displayed by current clinical standards such as ELISA, FISH, PCR. HER-2; a marker characterised...

10.3389/fmedt.2024.1360510 article EN cc-by Frontiers in Medical Technology 2024-02-15

The catalytic activity of PEM fuel cell electrodes is determined by the complex physicochemical interactions among components electrocatalytic interface: precious metal catalyst, support, and ionomer. In present study, effect carbon support meso- microporosity was investigated in relation with both Nafion content distribution catalyst layer. ionomer load between 0.09 1.1 mg cm−2 layers prepared either Nafion-coated or Nafion-mixed techniques, while Pt kept constant at 0.1 cm−2. Three...

10.1021/jp8060398 article EN The Journal of Physical Chemistry C 2008-12-11

A simple-to-use method of carbon support surface activation using a PdCl2−SnCl2 solution (referred to as the Shipley solution) was developed, for improving activity and durability low Pt loading (0.1 mg cm−2) catalysts toward oxygen reduction reaction (ORR). Three types supports were investigated: Denka, Graphitized Carbon (GC) Vulcan XC-72R. nanoparticles synthesized by modified polyol process adsorbed on treated supports. The resulting catalyst composition Pt-SnO2−Pd/C with beneficial...

10.1021/jp104456j article EN The Journal of Physical Chemistry C 2010-09-13
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