Results 121 to 130 of about 52,585 (261)

Truncated Octahedral PtCu Alloy Nanoparticles for Efficient Methanol Electrooxidation

MetalMat, EarlyView.
Platinum–copper nano‐truncated octahedra are developed as efficient electrocatalysts for methanol oxidation in alkaline media, exhibiting notably enhanced activity compared to commercial Pt/C. Experimental and theoretical analysis reveals that alloying with copper modifies the electronic structure of platinum, facilitating the key reaction step and ...
Mengfei Liu, Haoran Chen, Jiahao Zheng, Yingying Wang, Yanyun Ma, Yiqun Zheng   +5 more
wiley   +1 more source

THE INFLUENCE OF THERMOSTIMULATED SEGREGATION ON PLASMON RESONANCE AND VALENCE ELECTRON DENSITY IN SURFACE LAYER FOR THE Cu-Mn ALLOY [PDF]

Физико-химические аспекты изучения кластеров, наноструктур и наноматериалов, 2011
The influence of thermostimulated segregation on surface electrons properties of polycrystalline Cu-22,5 at. % Mn alloy was investigated by REELS and AES means. Dependences of valence electrons density on temperature, structure and depth of surface layer
K.Ch. Bzhihatlov, I.N. Sergeev
doaj  

Surface characterization of hydrogen charged and uncharged alpha-2 and gamma titanium aluminide alloys using AES and REELS [PDF]

The surfaces of selected uncharged and hydrogen charged alpha-2 and gamma titanium aluminide alloys with Nb additions were characterized by Auger electron (AES) and reflected electron energy loss (REELS) spectroscopy.
Shanabarger, M. R.
core   +1 more source

Quantitative Model of Internal Analyzer Scattering in a Hemispherical Electron Analyzer and Its Application to Improve the Accuracy of the Transmission Function

Surface and Interface Analysis, EarlyView.
ABSTRACT Internal scattering within hemispherical electron analyzers (HEA) is common when operating at low pass energies, where the instrument resolution of X‐ray photoelectron spectroscopy (XPS) and Auger electron spectroscopy experiments are at their best.
J. Laverock, N. A. Fox
wiley   +1 more source

Introducing Chemical Vapor Etching (CVE): A Material‐Selective Approach for Surgically Precise Tarnish Removal

Small, EarlyView.
ABSTRACT The controlled removal of corrosion products is a persistent challenge in fields ranging from industrial alloy protection to cultural heritage conservation. Achieving high precision and selectivity in subtractive treatments remains difficult because of chemical complexity and structural heterogeneity of the corrosion layers.
Yumei Chai, Aranzazu Sierra‐Fernández, Yuxing Qin, Raydel Pérez Menéndez, Jianfeng Zhu, Mato Knez   +5 more
wiley   +1 more source

Toward Controlled Fluidized Bed – Chemical Vapor Deposition of Boron Nitride: Thermochemical Analysis and Microstructural Investigations

Advanced Materials Interfaces
This study examines the optimization and characterization of stoichiometric and carbon‐free boron nitride interphase coatings using triethylamine borane complex as a precursor in the Fluidized Bed Chemical Vapor Deposition process.
Thomas Da Calva Mouillevois, Clément Rivière, Hervé Plaisantin, Jérôme Roger, Teresa Hungria, Georges Chollon, Nathalie Bertrand   +6 more
doaj   +1 more source

A Hybrid Solid‐State Battery with a Panoramic‐Scale Stack of Bulk Electrodes and a Thin‐Film Electrolyte

Small, EarlyView.
A hybrid all‐solid‐state battery (ASSB) is implemented by integrating a thin‐film electrolyte on a bulk anode, and a thick cathode sheet. A densified anode substrate with suppressed porosity is prepared by cold pressing. Thin‐film electrolyte is fabricated onto the bulk substrate via co‐sputtering and infrared‐based rapid annealing.
Hyeseong Jeong, Young Jung Kim, Min Kwan Seo, Dongwook Shin, Jae Jin Kim, Jong‐Ho Lee, Sung Soo Shin, Hyoungchul Kim   +7 more
wiley   +1 more source

Reductive Transformation of ALD TeO2 into Continuous and Impurity‐Free Tellurium Films

Small, EarlyView.
Atomic layer deposition forms a conformal TeO2 template that transforms to elemental Te through TeH2 mediated reduction using Te(SiMe3)2 and NH3. The transformation is self‐limiting and yields continuous crystalline Te with oxygen‐free bulk and interface even at ultrathin thicknesses.
Seung Ho Ryu, Seungsu Kim, Taikyu Kim, Jihoon Jeon, Gwang Min Park, Hyeonji Yoo, Sung‐Chul Kim, Sung Ok Won, Ju‐Young Kim, Seong Keun Kim   +9 more
wiley   +1 more source

Influence of Tramp Elements on Phase Transformations, Structure, and Properties of Scrap‐Based Steels: A Focused Review of Recent Developments

steel research international, EarlyView.
This review explains how impurities from recycled scrap affect steel production and performance. Even small amounts (far below 1%) of these impurities can change how steel behaves during fabrication but also affect the properties of the end product. With better understanding and targeted countermeasures, these challenges can be managed, enabling wider ...
Oleksandr Glushko, Ronald Schnitzer
wiley   +1 more source

A Low‐Power Radioisotope XRF Spectrometer for Detection of Light Elements on Planetary Missions

X-Ray Spectrometry, EarlyView.
ABSTRACT Current X‐ray spectrometers for in situ geochemical analysis on planetary missions typically rely either on X‐ray tubes, which demand electrical power and add mass and thermal complexity, or on alpha particle X‐ray spectrometers (APXS) that use rare 244Cm$$ {}^{244}\mathrm{Cm} $$ sources, and come with severe concerns on radiation safety and ...
Leandro Silveri, Artem Knyazev, Hashem Alaidaros, Maryam Manzoor Amanullah, Zach Ioannou, Tengiz Ibrayev, Danish Khan, Sara Leardini, Laura Manenti, Simi Maria Emilia Mangani, Safa Naseem, Sandhya Sharma, Sara Trevisan, Alia Zino, Francesco Arneodo   +14 more
wiley   +1 more source