Results 111 to 120 of about 293,660 (340)

Toward Fast Proton Shuttling in Acidic Oxygen Evolution Reaction

Advanced Functional Materials, EarlyView.
This review establishes proton transfer dynamics as a descriptor governing acidic OER activity, moving beyond the kinetic constraints derived from the proton coupled electron transfer. We discuss how deprotonation governs classical mechanisms, including adsorbate evolution mechanism (AEM), lattice oxygen mechanism (LOM) and oxide path mechanism (OPM ...
Ashish Gaur, Jaeyeong Kim, Sungwook Mhin, HyukSu Han   +3 more
wiley   +1 more source

Wear Resistance and Failure Mode of Coatings Based on the ZrN System with the Introduction of Ti, Nb, and Hf Deposited on a Titanium Alloy Substrate

Metals
The article presents the results of a comparison of the wear resistance of coatings with a two-layer architecture (adhesion layer–wear-resistant layer) of Zr-ZrN, Zr-(Zr,Ti)N, Zr,Hf-(Zr,Hf)N, Zr,Nb-(Zr,Nb)N, Zr,Hf-(Ti,Zr,Hf)N, and Zr,Nb-(Ti,Zr,Nb)N ...
Sergey Grigoriev, Catherine Sotova, Alexander Metel, Valery Zhylinski, Filipp Milovich, Anton Seleznev, Yanpeng Xue, Alexey Vereschaka   +7 more
doaj   +1 more source

Microstructure and mechanical properties of Zr-modified aluminum alloy 5083 manufactured by laser powder bed fusion

Additive Manufacturing, 2019
Aluminum alloy (AA), AA5083 and AA5083 alloyed with 0.7 wt.% Zr (hereafter denoted as AA5083+Zr) were manufactured by laser powder bed fusion (LPBF) using gas atomized powders. Parametric investigation was performed by using laser powers of 200 W and 350 
Le Zhou, Holden C. Hyer, Sharon Park, Hao Pan, Yuanli Bai, K. Rice, Y. Sohn   +6 more
semanticscholar   +1 more source

Stable Zr-Piperazine MOFs for Efficient Gold Recovery

Gold's importance in various industries, the ever-rising demand of electronics and shrinking gold reserves all underscore the pressing need to develop effective gold recovery methods from waste.
Belin, Anne Faustine Sido, Roth, Jocelyn Richard, Meoli, Matthieu, Scopelliti, Rosario, Queen, Wendy Lee, Stoian, Dragos   +5 more
core   +2 more sources

Coupling Anodic Activity and Stability at Ni‐Based Non‐Oxide Catalysts via Coordinating Alcohol Oxidation and Oxygen Evolution

Advanced Functional Materials, EarlyView.
A cooperative and competitive interrelationship between alcohol oxidation (AOR) and water oxidation (OER) was observed on a typical anode catalyst of Ni2P. In situ Raman spectroscopy and electrochemical analyses revealed a specific complementary mechanism between them, in which OER and AOR critically contribute to the activity and stability of anodic ...
Yong Yan, Xinyu Liu, Yuguo Zhao, Hanwen Jian, Huan Zhou, Riyi Zhang, Dong Wang, Peter Schaaf, Lihua Wang, Guangsheng Guo, Xiayan Wang   +10 more
wiley   +1 more source

Nano‐Scale Characterization of Impurities Segregation in Solid Oxide Electrolysis Cells

Advanced Functional Materials, EarlyView.
Cathodic polarization induces impurity segregation in Ni, forming an amorphous Na─Al─Si─O amorphous phase at grain boundaries. Under ultralow oxygen partial pressure, multiple elements dissolve, migrate, and reoxidize within the metal. A patterned model system provides direct nanoscale evidence, clarifying the mechanism of polarization‐driven impurity ...
Zhongtao Ma, Qingjie Wang, Bowen Li, Vasileios Bilalis, Søren Bredmose Simonsen, Ming Chen   +5 more
wiley   +1 more source

Electrolyte‐Induced Cu+ Preservation Results in a Selectivity Switch of Electrocatalytic CO2 Reduction at a Copper‐Organic Framework as Electrocatalyst

Advanced Functional Materials, EarlyView.
The active role of KCl as a neutral electrolyte enables switching the selectivity on a Cu organic framework from C1 to C2+ products during electrocatalytic CO2 reduction. ABSTRACT We introduce a copper‐nicotinate (Cu‐NA) framework as a halogenide‐stabilized Cu+/Cu0 pre‐catalyst for electrocatalytic CO2 reduction with high C2+ selectivity in a “neutral”
Anirudha Shekhawat, Muhammad Adib Abdillah Mahbub, Lejing Li, Bashir Eid, Ridha Zerdoumi, Sabine Seisel, Carla Santana Santos, Nini Zhang, Thomas Quast, Xin Wang, Wolfgang Schuhmann, Debanjan Das   +11 more
wiley   +1 more source

BIODEGRADABLE Mg-Zr-Ca ALLOYS FOR BONE IMPLANT MATERIALS

, 2011
BIODEGRADABLE Mg-Zr-Ca ALLOYS FOR BONE IMPLANT ...
Peter Hodgson (13089276), YUNCANG LI (13350393), CYNTHIA S WONG (19562290), CUIE WEN (13350378)   +3 more
core  

Bacteria‐Responsive Nanostructured Drug Delivery Systems for Targeted Antimicrobial Therapy

Advanced Materials, EarlyView.
Bacteria‐responsive nanocarriers are designed to release antimicrobials only in the presence of infection‐specific cues. This selective activation ensures drug release precisely at the site of infection, avoiding premature or indiscriminate release, and enhancing efficacy.
Guillermo Landa, Gracia Mendoza, Silvia Irusta, Manuel Arruebo   +3 more
wiley   +1 more source

Influence of Nitride Coatings on Corrosion Resistance and the Biocompatibility of Titanium Alloy Products

Metals
The bioadhesion of bacteria to the surface of samples with Ti–TiN, Zr–ZrN, Zr–(Zr, Nb)N, and Zr–(Zr, Hf)N coatings was studied via incubation with gram-positive strains of Staphylococcus aureus.
Catherine Sotova, Oleg Yanushevich, Natella Krikheli, Olga Kramar, Alexey Vereschaka, Semen Shehtman, Filipp Milovich, Valery Zhylinski, Anton Seleznev, Pavel Peretyagin   +9 more
doaj   +1 more source