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  1. AU="van der Heijden, Onno"
  2. AU="Freitas, Teresa R"
  3. AU="Tomi Kovacevic"
  4. AU="Claire Hivroz"
  5. AU=Huang L E
  6. AU="More, Jessica"
  7. AU="Eliot, George"
  8. AU="Choi, Kati"
  9. AU="Wiese, Lothar"
  10. AU=Rackova Sylva AU=Rackova Sylva
  11. AU="Akala, Isiaka Olusola"
  12. AU="Nicolás Gonzalo Núñez"
  13. AU="Hernández Solis, Alejandro"
  14. AU="Jadad, Alejandro R"
  15. AU="Lastres, Palma Rico" AU="Lastres, Palma Rico"
  16. AU="Manes, K"
  17. AU="Baugh, Matthew"
  18. AU="Qu, C"
  19. AU="Flett, Heather"
  20. AU="Shueh Lin Lim"
  21. AU="Schröder, Johann"
  22. AU=Butler Taylor
  23. AU="Yang, Fan"
  24. AU="Giacomo Frati"
  25. AU=Kokhaei P
  26. AU="Charikleia Triantopoulou"
  27. AU="Salil Bhargava"
  28. AU="Jong-Eun Lee"
  29. AU="Vargas C, Laura"

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  1. Artikel: Tafel Slope Plot as a Tool to Analyze Electrocatalytic Reactions.

    van der Heijden, Onno / Park, Sunghak / Vos, Rafaël E / Eggebeen, Jordy J J / Koper, Marc T M

    ACS energy letters

    2024  Band 9, Heft 4, Seite(n) 1871–1879

    Abstract: Kinetic and nonkinetic contributions to the Tafel slope value can be separated using a Tafel slope plot, where a constant Tafel slope region indicates kinetic meaningfulness. Here, we compare the Tafel slope values obtained from linear sweep voltammetry ... ...

    Abstract Kinetic and nonkinetic contributions to the Tafel slope value can be separated using a Tafel slope plot, where a constant Tafel slope region indicates kinetic meaningfulness. Here, we compare the Tafel slope values obtained from linear sweep voltammetry to the values obtained from chronoamperometry and impedance spectroscopy, and we apply the Tafel slope plot to various electrocatalytic reactions. We show that similar Tafel slope values are observed from the different techniques under high-mass-transport conditions for the oxygen evolution reaction on NiFeOOH in 0.2 M KOH. However, for the alkaline hydrogen evolution reaction and the CO
    Sprache Englisch
    Erscheinungsdatum 2024-04-01
    Erscheinungsland United States
    Dokumenttyp Journal Article
    ISSN 2380-8195
    ISSN 2380-8195
    DOI 10.1021/acsenergylett.4c00266
    Datenquelle MEDical Literature Analysis and Retrieval System OnLINE

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  2. Artikel ; Online: Non-Kinetic Effects Convolute Activity and Tafel Analysis for the Alkaline Oxygen Evolution Reaction on NiFeOOH Electrocatalysts.

    van der Heijden, Onno / Park, Sunghak / Eggebeen, Jordy J J / Koper, Marc T M

    Angewandte Chemie (International ed. in English)

    2023  Band 62, Heft 7, Seite(n) e202216477

    Abstract: A large variety of nickel-based catalysts has been investigated for the oxygen evolution reaction (OER) in alkaline media. However, their reported activity, as well as Tafel slope values, vary greatly. To understand this variation, we studied ... ...

    Abstract A large variety of nickel-based catalysts has been investigated for the oxygen evolution reaction (OER) in alkaline media. However, their reported activity, as well as Tafel slope values, vary greatly. To understand this variation, we studied electrodeposited Ni
    Sprache Englisch
    Erscheinungsdatum 2023-01-10
    Erscheinungsland Germany
    Dokumenttyp Journal Article
    ZDB-ID 2011836-3
    ISSN 1521-3773 ; 1433-7851
    ISSN (online) 1521-3773
    ISSN 1433-7851
    DOI 10.1002/anie.202216477
    Datenquelle MEDical Literature Analysis and Retrieval System OnLINE

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  3. Artikel ; Online: Solutal Marangoni effect determines bubble dynamics during electrocatalytic hydrogen evolution.

    Park, Sunghak / Liu, Luhao / Demirkır, Çayan / van der Heijden, Onno / Lohse, Detlef / Krug, Dominik / Koper, Marc T M

    Nature chemistry

    2023  Band 15, Heft 11, Seite(n) 1532–1540

    Abstract: Understanding and manipulating gas bubble evolution during electrochemical water splitting is a crucial strategy for optimizing the electrode/electrolyte/gas bubble interface. Here gas bubble dynamics are investigated during the hydrogen evolution ... ...

    Abstract Understanding and manipulating gas bubble evolution during electrochemical water splitting is a crucial strategy for optimizing the electrode/electrolyte/gas bubble interface. Here gas bubble dynamics are investigated during the hydrogen evolution reaction on a well-defined platinum microelectrode by varying the electrolyte composition. We find that the microbubble coalescence efficiency follows the Hofmeister series of anions in the electrolyte. This dependency yields very different types of H
    Sprache Englisch
    Erscheinungsdatum 2023-08-10
    Erscheinungsland England
    Dokumenttyp Journal Article
    ZDB-ID 2464596-5
    ISSN 1755-4349 ; 1755-4330
    ISSN (online) 1755-4349
    ISSN 1755-4330
    DOI 10.1038/s41557-023-01294-y
    Datenquelle MEDical Literature Analysis and Retrieval System OnLINE

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  4. Artikel ; Online: Reversible and Irreversible Cation Intercalation in NiFeO

    Trzesniowski, Hanna / Deka, Nipon / van der Heijden, Onno / Golnak, Ronny / Xiao, Jie / Koper, Marc T M / Seidel, Robert / Mom, Rik V

    The journal of physical chemistry letters

    2023  Band 14, Heft 2, Seite(n) 545–551

    Abstract: For electrocatalysts with a layered structure, ion intercalation is a common phenomenon. Gaining reliable information about the intercalation of ions from the electrolyte is indispensable for a better understanding of the catalytic performance of these ... ...

    Abstract For electrocatalysts with a layered structure, ion intercalation is a common phenomenon. Gaining reliable information about the intercalation of ions from the electrolyte is indispensable for a better understanding of the catalytic performance of these electrocatalysts. Here, we take a holistic approach for following intercalation processes by studying the dynamics of the catalyst, water molecules, and ions during intercalation using operando soft X-ray absorption spectroscopy (XAS). Sodium and oxygen K-edge and nickel L-edge spectra were used to investigate the Na
    Sprache Englisch
    Erscheinungsdatum 2023-01-11
    Erscheinungsland United States
    Dokumenttyp Journal Article
    ISSN 1948-7185
    ISSN (online) 1948-7185
    DOI 10.1021/acs.jpclett.2c03336
    Datenquelle MEDical Literature Analysis and Retrieval System OnLINE

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  5. Artikel ; Online: Li

    van der Heijden, Onno / Eggebeen, Jordy J J / Trzesniowski, Hanna / Deka, Nipon / Golnak, Ronny / Xiao, Jie / van Rijn, Maartje / Mom, Rik V / Koper, Marc T M

    Angewandte Chemie (International ed. in English)

    2024  Band 63, Heft 18, Seite(n) e202318692

    Abstract: The efficiency of electrolysis is reduced due to the sluggish oxygen evolution reaction (OER). Besides catalyst properties, electrocatalytic activity also depends on the interaction of the electrocatalyst with the electrolyte. Here, we show that the ... ...

    Abstract The efficiency of electrolysis is reduced due to the sluggish oxygen evolution reaction (OER). Besides catalyst properties, electrocatalytic activity also depends on the interaction of the electrocatalyst with the electrolyte. Here, we show that the addition of small amounts of Li
    Sprache Englisch
    Erscheinungsdatum 2024-03-22
    Erscheinungsland Germany
    Dokumenttyp Journal Article
    ZDB-ID 2011836-3
    ISSN 1521-3773 ; 1433-7851
    ISSN (online) 1521-3773
    ISSN 1433-7851
    DOI 10.1002/anie.202318692
    Datenquelle MEDical Literature Analysis and Retrieval System OnLINE

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  6. Artikel ; Online: Disentangling Reaction Processes of Zeolites within Single-Oriented Channels.

    Fu, Donglong / van der Heijden, Onno / Stanciakova, Katarina / Schmidt, Joel E / Weckhuysen, Bert M

    Angewandte Chemie (International ed. in English)

    2020  Band 59, Heft 36, Seite(n) 15502–15506

    Abstract: Establishing structure-reactivity relationships for specific channel orientations of zeolites is vital to developing new, superior materials for various applications, including oil and gas conversion processes. Herein, a well-defined model system was ... ...

    Abstract Establishing structure-reactivity relationships for specific channel orientations of zeolites is vital to developing new, superior materials for various applications, including oil and gas conversion processes. Herein, a well-defined model system was developed to build structure-reactivity relationships for specific zeolite-channel orientations during various catalytic reaction processes, for example, the methanol- and ethanol-to-hydrocarbons (MTH and ETH) process as well as oligomerization reactions. The entrapped and effluent hydrocarbons from single-oriented zeolite ZSM-5 channels during the MTH process were monitored by using operando UV/Vis diffuse reflectance spectroscopy (DRS) and on-line mass spectrometry (MS), respectively. The results reveal that the straight channels favor the formation of internal coke, promoting the aromatic cycle. Furthermore, the sinusoidal channels produce aromatics, (e.g., toluene) that further grow into larger polyaromatics (e.g., graphitic coke) leading to deactivation of the zeolites. This underscores the importance of careful engineering of materials to suppress coke formation and tune product distribution by rational control of the location of zeolite acid sites and crystallographic orientations.
    Sprache Englisch
    Erscheinungsdatum 2020-03-02
    Erscheinungsland Germany
    Dokumenttyp Journal Article
    ZDB-ID 2011836-3
    ISSN 1521-3773 ; 1433-7851
    ISSN (online) 1521-3773
    ISSN 1433-7851
    DOI 10.1002/anie.201916596
    Datenquelle MEDical Literature Analysis and Retrieval System OnLINE

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  7. Artikel ; Online: Elucidating Zeolite Channel Geometry-Reaction Intermediate Relationships for the Methanol-to-Hydrocarbon Process.

    Fu, Donglong / Lucini Paioni, Alessandra / Lian, Cheng / van der Heijden, Onno / Baldus, Marc / Weckhuysen, Bert M

    Angewandte Chemie (International ed. in English)

    2020  Band 59, Heft 45, Seite(n) 20024–20030

    Abstract: The chemical industry has exploited zeolite shape selectivity for more than 50 years, yet our fundamental understanding remains incomplete. Herein, the zeolite channel geometry-reactive intermediate relationships are studied in detail using anisotropic ... ...

    Abstract The chemical industry has exploited zeolite shape selectivity for more than 50 years, yet our fundamental understanding remains incomplete. Herein, the zeolite channel geometry-reactive intermediate relationships are studied in detail using anisotropic zeolite ZSM-5 crystals for the methanol-to-hydrocarbon (MTH) process, and advanced magic-angle spinning solid-state NMR (ssNMR) spectroscopy. The utilization of anisotropic ZSM-5 crystals enabled the preferential formation of reaction intermediates in single-orientation zeolite channels, as revealed by molecular dynamics simulations and in situ UV/Vis diffuse-reflectance spectroscopy. The ssNMR results show that the slightly more constrained sinusoidal zeolite channels favor the olefin cycle by promoting the homologation of alkanes, whereas the more extended straight zeolite channels facilitate the aromatic cycle with a higher degree of alkylation of aromatics. Dynamic nuclear polarization experiments further indicate the preferential formation of heavy aromatics at the zeolite surface dominated by the sinusoidal channels, providing further insight into catalyst deactivation.
    Sprache Englisch
    Erscheinungsdatum 2020-09-11
    Erscheinungsland Germany
    Dokumenttyp Journal Article
    ZDB-ID 2011836-3
    ISSN 1521-3773 ; 1433-7851
    ISSN (online) 1521-3773
    ISSN 1433-7851
    DOI 10.1002/anie.202009139
    Datenquelle MEDical Literature Analysis and Retrieval System OnLINE

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  8. Artikel ; Online: Unravelling Channel Structure-Diffusivity Relationships in Zeolite ZSM-5 at the Single-Molecule Level.

    Fu, Donglong / Maris, J J Erik / Stanciakova, Katarina / Nikolopoulos, Nikolaos / van der Heijden, Onno / Mandemaker, Laurens D B / Siemons, Marijn E / Salas Pastene, Desiree / Kapitein, Lukas C / Rabouw, Freddy T / Meirer, Florian / Weckhuysen, Bert M

    Angewandte Chemie (International ed. in English)

    2021  Band 61, Heft 5, Seite(n) e202114388

    Abstract: The development of improved zeolite materials for applications in separation and catalysis requires understanding of mass transport. Herein, diffusion of single molecules is tracked in the straight and sinusoidal channels of the industrially relevant ZSM- ...

    Abstract The development of improved zeolite materials for applications in separation and catalysis requires understanding of mass transport. Herein, diffusion of single molecules is tracked in the straight and sinusoidal channels of the industrially relevant ZSM-5 zeolites using a combination of single-molecule localization microscopy and uniformly oriented zeolite thin films. Distinct motion behaviors are observed in zeolite channels with the same geometry, suggesting heterogeneous guest-host interactions. Quantification of the diffusion heterogeneities in the sinusoidal and straight channels suggests that the geometry of zeolite channels dictates the mobility and motion behavior of the guest molecules, resulting in diffusion anisotropy. The study of hierarchical zeolites shows that the addition of secondary pore networks primarily enhances the diffusivity of sinusoidal zeolite channels, and thus alleviating the diffusion limitations of microporous zeolites.
    Sprache Englisch
    Erscheinungsdatum 2021-12-02
    Erscheinungsland Germany
    Dokumenttyp Journal Article ; Research Support, Non-U.S. Gov't
    ZDB-ID 2011836-3
    ISSN 1521-3773 ; 1433-7851
    ISSN (online) 1521-3773
    ISSN 1433-7851
    DOI 10.1002/anie.202114388
    Datenquelle MEDical Literature Analysis and Retrieval System OnLINE

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  9. Artikel: Origin and prevention of broad particle size distributions in carbon-supported palladium catalysts prepared by liquid-phase reduction

    Lamme, Wouter S / de Jong, Krijn P / Hermans, Sophie / Krans, Nynke A / Mager, Nathalie / Nöllen, Erica / van der Heijden, Onno / Zečević, Jovana

    Journal of catalysis. 2019 July, v. 375

    2019  

    Abstract: Carbon-supported palladium (Pd/C) catalysts often display broad or multimodal Pd particle size distributions detrimental for their performance. Therefore, the formation of large particles during preparation should be better understood and avoided. We ... ...

    Abstract Carbon-supported palladium (Pd/C) catalysts often display broad or multimodal Pd particle size distributions detrimental for their performance. Therefore, the formation of large particles during preparation should be better understood and avoided. We prepared catalysts with up to 10 wt% Pd supported on oxygen-functionalized carbon nanotubes and activated carbon via liquid-phase reduction. It was inferred that small Pd particles (∼1 nm) were formed from Pd ions adsorbed on the carbon. At higher loadings, up to 65% of the Pd ended up in larger particles (>10 nm) probably formed from Pd ions in solution, lowering the Pd-normalized activity in the hydrogenation of cinnamaldehyde 4-fold compared to samples with small particles only. Three key factors were identified for preparing Pd/C catalysts with exclusively ∼1 nm Pd particles: a support with a high density of acid sites and high specific surface area, and a metal loading at molar ratio Pd/acid sites <0.5.
    Schlagwörter activated carbon ; carbon nanotubes ; catalysts ; hydrogenation ; ions ; palladium ; particle size distribution ; surface area
    Sprache Englisch
    Erscheinungsverlauf 2019-07
    Umfang p. 448-455.
    Erscheinungsort Elsevier Inc.
    Dokumenttyp Artikel
    ZDB-ID 1468993-5
    ISSN 0021-9517
    ISSN 0021-9517
    DOI 10.1016/j.jcat.2019.06.034
    Datenquelle NAL Katalog (AGRICOLA)

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