Results 91 to 100 of about 8,389 (250)

Intermetallic Electrocatalysts for Small‐Molecule Fuel Oxidation

Advanced Energy Materials, EarlyView.
Intermetallic compounds exhibit superior activity, durability, and CO tolerance, making them top‐tier catalysts for small‐molecule fuel cells. This review focuses on their synergy‐driven performance in hydrogen, formic acid, methanol, and ethanol oxidation reactions.
Qi Mai, Yiwen Mai, Yiwen Zhong, Ruichang Xue, Baohua Jia, Xinwei Guan, Wubin Du, Hongge Pan, Yitong Li, Zhenfang Zhang, Lingfeng Zhu, Xiaoning Li, Peng Li, Tianyi Ma   +13 more
wiley   +1 more source

Model-Targeted Poisoning Attacks with Provable Convergence [PDF]

arXiv, 2020
In a poisoning attack, an adversary with control over a small fraction of the training data attempts to select that data in a way that induces a corrupted model that misbehaves in favor of the adversary. We consider poisoning attacks against convex machine learning models and propose an efficient poisoning attack designed to induce a specified model ...
arxiv  

Toward Understanding the Stability of Single‐Atom Catalysts in Oxygen Evolution Reactions

Advanced Energy Materials, EarlyView.
Enhancing the stability of single‐atom catalysts for the oxygen evolution reaction hinges on understanding support interactions, local geometry, and structural dynamics. Transitioning to OH‐modified surfaces offers a promising route to cap surface metals and prevent leaching, paving the way for the next generation of stable OER SACs.
Maxwell Tsipoaka, Ali A. Rownaghi
wiley   +1 more source

Data Poisoning against Differentially-Private Learners: Attacks and Defenses [PDF]

arXiv, 2019
Data poisoning attacks aim to manipulate the model produced by a learning algorithm by adversarially modifying the training set. We consider differential privacy as a defensive measure against this type of attack. We show that such learners are resistant to data poisoning attacks when the adversary is only able to poison a small number of items ...
arxiv  

A Recent Progress on Upgrading of Furfural and Derivatives into Green Transport Fuels and Precursors via CC Coupling Reactions

Advanced Energy and Sustainability Research, EarlyView.
This review highlights recent advancements in converting lignocellulosic biomass to fuel precursors. It emphasizes the role of FUR and 2‐methylfuran in aldol condensation and hydroxyalkylation–alkylation reactions. The article discusses their efficiency, potential applications, and emerging technologies that promise cleaner and more sustainable energy ...
Errol D. Saluta, Mahlet N. Gebresillase, Jeong Gil Seo   +2 more
wiley   +1 more source

Zero‐Valent Iron Nanoparticles Supported on Si/N Codoped Carbon Materials: From Biomass to Oxygen Reduction Electrocatalysts and Supercapacitors

Advanced Energy and Sustainability Research, EarlyView.
Zero‐valent iron nanoparticles on Si/N codoped carbon support are prepared from hydrothermal carbonization and pyrolysis of biomass, silica, and iron salt. The Fe nanoparticles are evenly distributed on the support and encapsulated in graphitic or iron oxide shells.
Lilian Moumaneix, Oktay Safarov, Tanja Kallio   +2 more
wiley   +1 more source

EFFECTS OF SOME NOVEL ASCORBIC ACID-METAL COMPLEXES ON SELECTED BACTERIAL AND FUNGAL SPECIES [PDF]

Journal of Sciences, Islamic Republic of Iran, 1994
The antimicrobial activity of some novel ascorbic acid-metal complexes [bisascorbate complexes of copper (II), zinc(II), manganese (11), iron (111), cobalt(II), lead(II) and cadmium(II)] was investigated.
doaj  

Sodium Manganese Hexacyanoferrate: Characterization as Sodium‐Ion Battery Cathode Material, Full Cell Cycling with Hard Carbon and Post‐Mortem Analyses

Batteries &Supercaps, EarlyView.
Sodium manganese hexacyanoferrate (NaMnHCF) is a promising cathode for sodium‐ion batteries due to its LFP‐like voltage profile and cost‐effective composition. This study examines its cycling performance with hard carbon anodes, highlighting Na+ inventory loss as a key degradation factor.
Sebastian Büchele, Valeriu Mereacre, Nicole Bohn, Pirmin Stüble, Xuebin Wu, Noah Keim, Ruochen Xu, Holger Geßwein, Wenzhe Sun, Grigor Vrhovac, Michael Pordzik, Thomas Bergfeldt, Sylvio Indris, Werner Bauer, Helmut Ehrenberg, Joachim R. Binder   +15 more
wiley   +1 more source

Some results for poisoning in a catalytic model [PDF]

arXiv, 2006
We obtain new results concerning poisoning/nonpoisoning in a catalytic model which has previously been introduced and studied. We show that poisoning can occur even when the arrival rate of one gas is smaller than the sum of the arrival rates of the other gases, and that poisoning does not occur when all gases have equal arrival rates.
arxiv  

Autoinductive Effects in Zinc‐Catalyzed Alkylations of Benzaldehyde Mediated by Simple Chiral β‐Amino Alcohol Ligands

ChemistryEurope, EarlyView.
The first report on zinc‐catalyzed enantioselective alkylation of aldehydes mediated by a chiral auxiliary is revisited, and the studies show much more complex behavior than previously thought. Studies show an enantiodivergence of the reaction as a function of its progress, due to an autoinduction phenomenon.
Joseph El Khoury, Thibault Thierry, Yannick Geiger, Stéphane Bellemin‐Laponnaz   +3 more
wiley   +1 more source