Search Results - "HJELM, Johan"

Impedance of SOFC electrodes: A review and a comprehensive case study on the impedance of LSM:YSZ cathodes by Nielsen, Jimmi, Hjelm, Johan

“…•The EIS of SOFC electrodes were reviewed in the context of porous electrode theory.•The impedance of LSM based composite cathodes were evaluated from 200°C to…”
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Carbon deposition and sulfur poisoning during CO2 electrolysis in nickel-based solid oxide cell electrodes by Skafte, Theis Løye, Blennow, Peter, Hjelm, Johan, Graves, Christopher

“…Reduction of CO2 to CO and O2 in the solid oxide electrolysis cell (SOEC) has the potential to play a crucial role in closing the CO2 loop. Carbon deposition…”
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Electrochemical Characterization of Aromatic Molecules with 1,4-Diaza Groups for Flow Battery Applications by Pasadakis-Kavounis, Alexandros, Baj, Vanessa, Hjelm, Johan

“…The aqueous redox flow battery is a promising technology for large-scale low cost energy storage. The rich possibilities for the tailoring of organic molecules…”
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Unifying the ORR and OER with surface oxygen and extracting their intrinsic activities on platinum by Brandes, Benedikt Axel, Krishnan, Yogeshwaran, Buchauer, Fabian Luca, Hansen, Heine Anton, Hjelm, Johan

“…Common half-cell measurements deliver oxygen reduction activities linked to the chosen scan rate, limiting their value for fundamental and comparative studies…”
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Fabrication of thin yttria-stabilized-zirconia dense electrolyte layers by inkjet printing for high performing solid oxide fuel cells by ESPOSITO, Vincenzo, GADEA, Christophe, HJELM, Johan, MARANI, Debora, QIANG HU, AGERSTED, Karsten, RAMOUSSE, Severine, JENSEN, Søren Højgaard

“…In this work, we present how a low-cost HP Deskjet 1000 inkjet printer was used to fabricate a 1.2 mu m thin, dense and gas tight 16 cm super(2) solid oxide…”
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Manufacturing and characterization of metal-supported solid oxide fuel cells by Blennow, Peter, Hjelm, Johan, Klemensø, Trine, Ramousse, Severine, Kromp, Alexander, Leonide, André, Weber, André

“…A metal-supported solid oxide fuel cell design offers competitive advantages, for example reduced material costs and improved robustness. This paper reports…”
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Redox Probing Study of the Potential Dependence of Charge Transport Through Li2O2 by Knudsen, Kristian B, Luntz, Alan C, Jensen, Søren H, Vegge, Tejs, Hjelm, Johan

“…In the field of energy storage devices the pursuit for cheap, high energy density, reliable secondary batteries is at the top of the agenda. The Li–O2 battery…”
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A high performance ceria based interdiffusion barrier layer prepared by spin-coating by Plonczak, Pawel, Joost, Mario, Hjelm, Johan, Søgaard, Martin, Lundberg, Mats, Hendriksen, Peter Vang

“…A multiple spin-coating deposition procedure of Ce 0.9Gd 0.1O 1.95 (CGO) for application in solid oxide fuel cells (SOFCs) was developed. The thin and dense…”
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Li+ Ion Insertion in TiO2 (Anatase). 2. Voltammetry on Nanoporous Films by Lindström, Henrik, Södergren, Sven, Solbrand, Anita, Rensmo, Håkan, Hjelm, Johan, Hagfeldt, Anders, Lindquist, Sten-Eric

“…Electrochemical properties of Li+ ion insertion in nanoporous TiO2 (anatase) electrodes were studied by voltammetry. Linear and cyclic potential scans were…”
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Electro- and Photochemical Switching of Dithienylethene Self-Assembled Monolayers on Gold Electrodes by Browne, Wesley R., Kudernac, Tibor, Katsonis, Nathalie, Areephong, Jetsuda, Hjelm, Johan, Feringa, Ben L.

“…The photochemical and electrochemical properties of self-assembled monolayers (SAM) of three structurally distinct hexahydro- and…”
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Conducting Polymers Containing In-Chain Metal Centers:  Electropolymerization of Oligothienyl-Substituted {M(tpy)2} Complexes and in Situ Conductivity Studies, M = Os(II), Ru(II) by Hjelm, Johan, Handel, Robyn W, Hagfeldt, Anders, Constable, Edwin C, Housecroft, Catherine E, Forster, Robert J

“…The electropolymerization of a series of Ru and Os bis-terpyridine complexes that form rodlike polymers with bithienyl, quaterthienyl, or hexathienyl bridges…”
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On/Off Photoswitching of the Electropolymerizability of Terthiophenes by Areephong, Jetsuda, Kudernac, Tibor, de Jong, Jaap J. D, Carroll, Gregory T, Pantorott, Davide, Hjelm, Johan, Browne, Wesley R, Feringa, Ben L

“…In this contribution the polymerization of terthiophene, to form an alkene bridged α,α-coupled sexithiophene polymer, is controlled by light; i.e. the…”
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Photochromism and Electrochemistry of a Dithienylcyclopentene Electroactive Polymer by Wesenhagen, Philana, Areephong, Jetsuda, Fernandez Landaluce, Tatiana, Heureux, Nicolas, Katsonis, Nathalie, Hjelm, Johan, Rudolf, Petra, Browne, Wesley R, Feringa, Ben L

“…A bifunctional substituted dithienylcyclopentene photochromic switch bearing electropolymerisable methoxystyryl units, which enable immobilization of the…”
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Gas-phase electrochemical CO2 reduction on silver-copper BTC MOF in a zero-gap membrane electrode assembly by Nambi, Ashwin, Chatzitakis, Athanasios, Olsbye, Unni, Hjelm, Johan, Zhao, Yujie, Kaiser, Andreas

“…•A fast co-precipitation method using a deprotonated BTC ligand was developed to be able to incorporate Ag ions into the structure of bimetallic AgCu-BTC…”
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Enhancement of the chemical stability in confined δ-Bi2O3 by Sanna, Simone, Esposito, Vincenzo, Andreasen, Jens Wenzel, Hjelm, Johan, Zhang, Wei, Kasama, Takeshi, Simonsen, Søren Bredmose, Christensen, Mogens, Linderoth, Søren, Pryds, Nini

“…Using highly coherent interfaces of alternating oxide layers a bismuth-oxide-based oxygen ion conductor exhibits unprecedented high chemical stability in…”
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Insight into Selectivity Differences of Glycerol Electro-Oxidation on Pt(111) and Ag(111) by Meng, Zhe, Tran, David, Hjelm, Johan, Kristoffersen, Henrik H., Rossmeisl, Jan

“…Electro-oxidation is a way to utilize glycerol, a byproduct of biodiesel production, to produce fuels and feedstock chemicals for the chemical industry. A…”
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Bipolar Verdazyl Radicals for Symmetrical Batteries: Properties and Stability in All States of Charge by Steen, Jelte S., Vries, Folkert, Hjelm, Johan, Otten, Edwin

“…Redox flow batteries based on organic electrolytes are promising energy storage devices, but stable long‐term cycling is often difficult to achieve. Bipolar…”
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An Electrochemical Impedance Spectroscopy Investigation of the Overpotentials in Li–O 2 Batteries by Højberg, Jonathan, McCloskey, Bryan D., Hjelm, Johan, Vegge, Tejs, Johansen, Keld, Norby, Poul, Luntz, Alan C.

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Blatter Radicals as Bipolar Materials for Symmetrical Redox-Flow Batteries by Steen, Jelte S, Nuismer, Jules L, Eiva, Vytautas, Wiglema, Albert E. T, Daub, Nicolas, Hjelm, Johan, Otten, Edwin

“…Redox-active organic molecules are promising charge-storage materials for redox-flow batteries (RFBs), but material crossover between the posolyte and negolyte…”
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Reactivating the Ni-YSZ electrode in solid oxide cells and stacks by infiltration by Skafte, Theis Løye, Hjelm, Johan, Blennow, Peter, Graves, Christopher

“…The solid oxide cell (SOC) could play a vital role in energy storage when the share of intermittent electricity production is high. However, large-scale…”
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