Hamza Khalid

ORCID: 0000-0003-4097-0178
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About
Contact & Profiles
Research Areas
  • Fuel Cells and Related Materials
  • Advanced Battery Technologies Research
  • Advanced battery technologies research
  • Advanced Photocatalysis Techniques
  • Membrane-based Ion Separation Techniques
  • TiO2 Photocatalysis and Solar Cells
  • Iron and Steelmaking Processes
  • Bone Tissue Engineering Materials
  • Energy and Environment Impacts
  • Energy, Environment, and Transportation Policies
  • Data Quality and Management
  • Natural Language Processing Techniques
  • Topic Modeling
  • Electric Vehicles and Infrastructure
  • Quantum Dots Synthesis And Properties
  • Transition Metal Oxide Nanomaterials

University of Engineering and Technology Lahore
2020-2023

Korea Institute of Science and Technology
2021-2023

Korea University of Science and Technology
2021-2023

Anion exchange membranes (AEM) are key components in anion membrane water electrolysers. Recently developed materials less susceptible to the alkaline degradation of polymer backbone and quaternary ammonium groups. A remaining challenge is mechanical stability contact with hot dimensional when temperature feed solution changes. One reinforce a porous support. Since support like PEEK or PTFE have different swelling behavior than matrix no strong interactions matrix, voids can form, gas...

10.1016/j.memsci.2021.119832 article EN cc-by Journal of Membrane Science 2021-09-03

Recently, alkaline membrane water electrolysis, in which membranes are direct contact with or solutions, has gained attention. This necessitates new approaches to characterization. We show how the mechanical properties of FAA3, PiperION, Nafion 212 and reinforced FAA3-PK-75 PiperION PI-15 change when stress−strain curves measured temperature-controlled water. Since dimensional changes temperature and, therefore, may experience stresses application, we investigated seven different types...

10.3390/membranes12100989 article EN cc-by Membranes 2022-10-12

Stability of membranes in electrolysers is challenged by dimensional changes, when dry are assembled and wetted the electrolyser starts. Assembling wet challenging because water evaporates during handling. To minimize FAA3 pre-swollen aqueous ethylene glycol (EG, boiling point 197°C). Membranes partially dissolve 100 vol% EG, swell excessively 70 vol%. Swelling 50 shows smallest changes handling (shrink) re-immersion KOH solution (swelling, mimicking start electrolyser). These show about 30%...

10.1016/j.memsci.2022.121344 article EN cc-by Journal of Membrane Science 2023-01-05

Named entity recognition (NER) is a task of proper noun identification from natural language text and classification into various types such as location, person, organization. Due to NER's applications in different processing (NLP) tasks, numerous NER approaches benchmark datasets have been proposed. However, developing techniques for low-resource languages still limited due the absence substantial training datasets. Punjabi classic example low resource language. Although researchers worked...

10.1145/3595861 article EN ACM Transactions on Asian and Low-Resource Language Information Processing 2023-05-04
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