Results 51 to 60 of about 9,887 (194)

Beyond Presumptions: Toward Mechanistic Clarity in Metal‐Free Carbon Catalysts for Electrochemical H2O2 Production via Data Science

Advanced Materials, EarlyView.
Metal‐free carbon catalysts enable the sustainable synthesis of hydrogen peroxide via two‐electron oxygen reduction; however, active site complexity continues to hinder reliable interpretation. This review critiques correlation‐based approaches and highlights the importance of orthogonal experimental designs, standardized catalyst passports ...
Dayu Zhu, Hsi‐wen Wu, Xiao Wang, Jie Zhang   +3 more
wiley   +1 more source

The Identification of Cu–O–C Bond in Cu/MWCNTs Hybrid Nanocomposite by XPS and NEXAFS Spectroscopy

Nanomaterials, 2021
The results of the research of a composite based on multi-walled carbon nanotubes (MWCNTs) decorated with CuO/Cu2O/Cu nanoparticles deposited by the cupric formate pyrolysis are discussed. The study used a complementary set of methods, including scanning
Danil V. Sivkov, Olga V. Petrova, Sergey V. Nekipelov, Alexander S. Vinogradov, Roman N. Skandakov, Sergey I. Isaenko, Anatoly M. Ob’edkov, Boris S. Kaverin, Ilya V. Vilkov, Roman I. Korolev, Viktor N. Sivkov   +10 more
doaj   +1 more source

Structural and electronic properties of the graphene/Al/Ni(111) intercalation-like system

, 2011
Decoupling of the graphene layer from the ferromagnetic substrate via intercalation of sp metal has recently been proposed as an effective way to realize single-layer graphene-based spin-filter.
Boettcher, S., Dedkov, Yu. S., Generalov, A., Horn, K., Voloshina, E. N., Weser, M.   +5 more
core   +1 more source

Electronic properties of metal-induced gap states formed at alkali-halide/metal interfaces [PDF]

, 2005
The spatial distribution and site- distribution of metal induced gap states (MIGS) are studied by thickness dependent near edge x-ray absorption fine structure (NEXAFS) and comparing the cation and anion edge NEXAFS.
Genki Yoshikawa, Koichiro Saiki, Manabu Kiguchi, P. W. Anderson, Susumu Ikeda   +4 more
core   +2 more sources

Tuning Amorphous‐Crystalline Catalytic Interfaces by Mechanochemistry: Cu‐Based Metallic Glasses Coupled with Ceria for CO Oxidation

Advanced Materials, EarlyView.
Ball‐milling Cu‐based metallic glasses with ceria creates a unique nanostructure where metallic glass particles are wrapped by CeO2 nanoparticles. The intimate integration triggers copper state reorganization during reaction and aging, boosting CO oxidation and COPrOx activity.
Maahin Mirzay‐Shahim, Mehran Nabahat, Laia Pascua‐Solé, Isabel Serrano, Ilaria Lucentini, Xènia Garcia, Marina Armengol‐Profitós, Asier Agrelo‐Lestón, Ignasi Burgués‐Ceballos, Núria J. Divins, Ignacio J. Villar‐Garcia, Virginia Pérez‐Dieste, Carlos Escudero, Carlo Marini, Jordi Llorca, Eloi Pineda, Pere Bruna, Lluís Soler   +17 more
wiley   +1 more source

Beyond Nitrogen in the Oxygen Reduction Reaction on Nitrogen-Doped Carbons: A NEXAFS Investigation

Nanomaterials, 2021
Polymer electrolyte membrane fuel cells require cheap and active electrocatalysts to drive the oxygen reduction reaction. Nitrogen-doped carbons have been extensively studied regarding their oxygen reduction reaction.
Eugenia Tanasa, Florentina Iuliana Maxim, Tugce Erniyazov, Matei-Tom Iacob, Tomáš Skála, Liviu Cristian Tanase, Cătălin Ianăși, Cristina Moisescu, Cristina Miron, Ioan Ardelean, Vlad-Andrei Antohe, Eugenia Fagadar-Cosma, Serban N. Stamatin   +12 more
doaj   +1 more source

The local structure of molecular reaction intermediates at surfaces [PDF]

, 2008
A critical review is presented of the results of (experimental) quantitative structural studies of molecular reaction intermediates at surfaces; i.e. molecular species that do not exist naturally in the gas phase and, in most cases, are implicated in ...
(erratum), Afsin, Afsin, Bader, Bader, Bao, Bao, Baumgärtel, Bengió, Benner, Besenthal, Bittencourt, Bjrkqvist, Blackman, Bondino, Bondino, Booth, Booth, Booth, Brown, Burch, Caldwell, Caldwell, Carley, Chambers, Chen, Churchill, Colaianni, Corrigan, Crapper, D. P. Woodruff, Daum, Demuth, Dietrich, Franco, Franco, Guo, Guo, Gutiérrez-Sosa, Haase, Harrison, Harrison, Hayden, Heinz, Hirschmugl, Hofmann, Holub-Krappe, Huerta, Jackson, Jackson, Jakob, Johnston, Johnston, Kang, Kerkar, Kesmodel, Kittel, Knight, Koestner, Kordesch, Kordesch, Kröger, Kunimatsu, Käckell, Lehwald, Lindner, Madix, Miners, Mullins, Nakahashi, Ormerod, Outka, Outka, Pascal, Puschmann, Robinson, Sapína, Sayago, Sayago, Schaff, Schindler, Schindler, Schreiber, Sotiropoulos, Starke, Stöhr, Stöhr, Takayanagi, Thevuthasan, Uekusa, Ulman, Wander, Wander, Weiss, Wienberg, Woodruff, Woodruff, Woodruff, Woodruff, Woodruff, Yamanaka, Yawney, Zheng, Öström   +103 more
core   +1 more source

Suppressing Metal–Molecule Charge Transfer With a Phosphorus Interlayer

Advanced Materials Interfaces, EarlyView.
Phosphorus forms stable reconstructions with remarkable properties on various metal substrates. Here, using a spectroscopic approach, its role as an effective buffer layer on Cu(110) is demonstrated, preventing charge transfer to adsorbed Zn‐tetraphenylporphyrins (ZnTPP).
Mattia Bassotti, Luca Floreano, Luca Schio, Sergio Salaverria, Dimas G. de Oteyza, Giacomo Giorgi, Frederik Schiller, Alberto Verdini   +7 more
wiley   +1 more source

Fe2+‐ Induced Activation of Single and Dual Metal Site—Lattice Oxygen Mechanism in Fe Rich NiFe‐LDHs for Oxygen Evolution Reaction

Advanced Science, EarlyView.
Fe‐rich NiFe‐LDH catalysts derived from MOFs, showing superior OER activity via lattice oxygen mechanism activation. ABSTRACT Developing a durable and efficient oxygen evolution reaction (OER) catalyst without noble metals is essential for the economical and sustainable production of hydrogen by alkaline water electrolysis.
Nithinraj Panangattu Dharmarajan, Mohammed Fawaz, Vanshree Parey, Sudip Chakraborty, CI Sathish, Thi Thuy Kieu Tran, Xuan Minh Chau Ta, Siddulu Naidu Talapaneni, Zhixuan Li, Kavitha Ramadass, Antonio Tricoli, Jae‐Hun Yang, Ajayan Vinu   +12 more
wiley   +1 more source

Resolving Oxidative and Corrosive Calendar‐Aging via Electrolyte Engineering for Stable Lithium Metal Batteries

Advanced Energy Materials, EarlyView.
A weakly solvating ether solvent, 1,2‐dimethoxypropane (DMP), is proposed for use in localized high‐concentration electrolytes (LHCEs) for lithium metal batteries (LMBs). These DMP‐based LHCEs simultaneously suppress lithium metal corrosion and cathode degradation—two interrelated processes that accelerate calendar aging of LMBs.
Jisub Kim, Ihnkyung Jung, Kyunam Lee, Insu Hwang, Minkwan Kim, Eunseok Park, Dongmin Park, Hayoung Park, Yonggoon Jeon, Gaeun Park, Hyo Chul Ahn, Jihoon Oh, Jungwon Park, Ali Coskun, Jang Wook Choi   +14 more
wiley   +1 more source