Zobrazeno 1 - 10
of 53
pro vyhledávání: '"Avik, Halder"'
Autor:
Sungsik Lee, Avik Halder, Glen A. Ferguson, Sönke Seifert, Randall E. Winans, Detre Teschner, Robert Schlögl, Vasiliki Papaefthimiou, Jeffrey Greeley, Larry A. Curtiss, Stefan Vajda
Publikováno v:
Nature Communications, Vol 10, Iss 1, Pp 1-9 (2019)
Current oxidative dehydrogenation processes are based on petroleum cracking that is indirect, environmentally unfriendly, and energy intensive. Here, the authors discover that subnanometer sized cobalt oxide clusters are active for oxidative dehydrog
Externí odkaz:
https://doaj.org/article/125ec67affd64a10bac56d4e2c3c8748
Autor:
Juraj Jašík, Stanislav Valtera, Mykhailo Vaidulych, Muntaseer Bunian, Yu Lei, Avik Halder, Hana Tarábková, Martin Jindra, Ladislav Kavan, Otakar Frank, Stephan Bartling, Štefan Vajda
Publikováno v:
Faraday Discussions. 242:70-93
High fidelity selectivity tuning of the oxidative dehydrogenation of cyclohexene was achieved through the control of the atomic composition of CuPd clusters and their interactions with the support.
Publikováno v:
Journal of Superconductivity and Novel Magnetism. 35:997-1004
Metal nanoclusters, composed of tens to thousands of atoms, display the phenomenon of electronic shell structure. This quantum size effect, with its associated level degeneracy, turns out to be highly propitious for superconductivity. Spectroscopy of
Autor:
Juraj, Jašík, Stanislav, Valtera, Mykhailo, Vaidulych, Muntaseer, Bunian, Yu, Lei, Avik, Halder, Hana, Tarábková, Martin, Jindra, Ladislav, Kavan, Otakar, Frank, Stephan, Bartling, Štefan, Vajda
Publikováno v:
Faraday discussions.
The pronounced effects of the composition of four-atom monometallic Cu and Pd and bimetallic CuPd clusters and the support on the catalytic activity and selectivity in the oxidative dehydrogenation of cyclohexene are reported. The ultra-nanocrystalli
Autor:
Yang, Liu, Avik, Halder, Soenke, Seifert, Nicholas, Marcella, Stefan, Vajda, Anatoly I, Frenkel
Publikováno v:
ACS applied materialsinterfaces. 13(45)
Size-selected clusters are important model catalysts because of their narrow size and compositional distributions, as well as enhanced activity and selectivity in many reactions. Still, their structure-activity relationships are, in general, elusive.
Autor:
Paul C. Redfern, Kah Chun Lau, Larry A. Curtiss, Mohammad Asadi, Chengji Zhang, Khalil Amine, Dongzhou Zhang, Hsien-Hau Wang, Avik Halder, Jun Lu, Dean J. Miller, Rajeev S. Assary, Xiangyi Luo, Anh T. Ngo, Rachid Amine, Jianguo Wen, Stefan Vajda, Amin Salehi-Khojin, Yun Jung Lee, Pedram Abbasi
Publikováno v:
The Journal of Physical Chemistry A
Lithium–oxygen (Li–O2) batteries are a promising class of rechargeable Li batteries with a potentially very high achievable energy density. One of the major challenges for Li–O2 batteries is the hi...
Autor:
Debarati Mukherjee, Sourja Ghosh, Umesh Mishra, Ashish K. Mandal, Lata Ramrakhiani, Abhradeep Majumder, Avik Halder
Publikováno v:
Clean Technologies and Environmental Policy. 21:795-813
Iron oxide nanoparticles (IONPs) were synthesized via an affordable and environmentally friendly route using waste banana peel extract. The polyphenol-rich extract acted as a stabilizing and reducing agent resulting in formation of α-Fe2O3 with a pa
Autor:
Avik Halder, Detre Teschner, Randall E. Winans, Glen Allen Ferguson, Vasiliki Papaefthimiou, Sungsik Lee, Stefan Vajda, Jeffrey Greeley, Robert Schlögl, Sönke Seifert, Larry A. Curtiss
Publikováno v:
Nature Communications, Vol 10, Iss 1, Pp 1-9 (2019)
Nature Communications
Nature Communications
The discovery of more efficient, economical, and selective catalysts for oxidative dehydrogenation is of immense economic importance. However, the temperatures required for this reaction are typically high, often exceeding 400 °C. Herein, we report
Autor:
Lakshmi Kolipaka, Paolo Milani, Sönke Seifert, Antonija Mravak, Cristina Lenardi, Vlasta Bonačić-Koutecký, Anatoly I. Frenkel, Janis Timoshenko, Claudio Piazzoni, Stefan Vajda, Avik Halder, Bing Yang
Publikováno v:
ACS Catalysis
Subnanometer copper tetramer–zirconia catalysts turn out to be highly efficient for CO2 hydrogenation and its conversion to methane. The cluster size and substrate morphology are controlled to optimize the catalytic performance. The two types of zi
Publikováno v:
ACS Applied Materials & Interfaces
Size-selected clusters are important model catalysts because of their narrow size and compositional distributions, as well as enhanced activity and selectivity in many reactions. Still, their structure-activity relationships are, in general, elusive.