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Niels J. Bjerrum
Researcher at Technical University of Denmark
Publications - 335
Citations - 15149
Niels J. Bjerrum is an academic researcher from Technical University of Denmark. The author has contributed to research in topics: Proton exchange membrane fuel cell & Raman spectroscopy. The author has an hindex of 51, co-authored 333 publications receiving 13985 citations. Previous affiliations of Niels J. Bjerrum include Argonne National Laboratory & Equinor.
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Approaches and Recent Development of Polymer Electrolyte Membranes for Fuel Cells Operating above 100 °C
TL;DR: In this article, a review of the area encompassing modified PFSA membranes, alternative sulfonated polymer and their composite membranes, and acid−base complex membranes is presented. But the authors do not discuss the performance of the composite membranes.
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High temperature proton exchange membranes based on polybenzimidazoles for fuel cells
TL;DR: In this article, the authors present an overview of the development of proton exchange membrane fuel cells (PEMFCs), including polymer synthesis, membrane casting, physicochemical characterizations and fuel cell technologies.
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Hollow Spheres of Iron Carbide Nanoparticles Encased in Graphitic Layers as Oxygen Reduction Catalysts
Yang Hu,Yang Hu,Jens Oluf Jensen,Wei Zhang,Lars Nilausen Cleemann,Wei Xing,Niels J. Bjerrum,Qingfeng Li +7 more
TL;DR: A novel type of catalysts prepared by high-pressure pyrolysis is reported, featured by hollow spherical morphologies consisting of uniform iron carbide (Fe3 C) nanoparticles encased by graphitic layers, with little surface nitrogen or metallic functionalities.
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PBI‐Based Polymer Membranes for High Temperature Fuel Cells – Preparation, Characterization and Fuel Cell Demonstration
TL;DR: In this paper, the development and evaluation of acid doped polybenzimidazole (PBI) membranes are reviewed, covering polymer synthesis, membrane casting, acid doping, physicochemical characterization and fuel cell testing.
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Aluminum as anode for energy storage and conversion: a review
Qingfeng Li,Niels J. Bjerrum +1 more
TL;DR: In this paper, a review of aluminum-air secondary batteries is presented, including aqueous electrolyte primary batteries, aluminum air batteries, and molten salt secondary batteries, as well as solution additive to electrolytes.