Results 81 to 90 of about 69,057 (310)

Self‐Refreshing Bi‐Based Active Sites for Efficient and Durable Electrochemical CO2 Reduction

open access: yesAdvanced Functional Materials, EarlyView.
A self‐refreshing Bi‐based catalyst is developed through the fabrication of a novel basic bismuth nitrate pre‐catalyst, which exhibits differential active sites of Bi2O2CO3 at low potentials and metallic Bi phases at high potentials, self‐repairing capability, and thus wide‐potential‐window efficiency and ultralong durability toward electrochemical CO2
Yuxuan Xiao   +7 more
wiley   +1 more source

PROFESSOR IONEL CATALIN POPESCU ON HIS 70TH ANNIVERSARY

open access: yesStudia Universitatis Babes-Bolyai Chemia, 2015
Professor Ionel Catalin Popescu was born on the 15th of July 1945. After graduating from Babeş-Bolyai University Cluj-Napoca (UBB) as a chemist in 1968, he became a research assistant at Petru Poni Macromolecular Chemistry Research Institute in Iasi ...
Liana Maria MUREŞAN   +2 more
doaj  

Using Phosphogypsum as a Source of Calcium Sulfate When Synthesizing Calcium Molybdate Nanoparticles

open access: yesReactions
Calcium molybdate (CaMoO4) is of significant interest due to its unique properties and numerous industrial applications, such as catalysis, electrochemistry, and optoelectronics.
Youssef Belaoufi   +9 more
doaj   +1 more source

Macroscale and Nanoscale Photoelectrochemical Behavior of p-Type Si(111) Covered by a Single Layer of Graphene or Hexagonal Boron Nitride [PDF]

open access: yes, 2020
Two-dimensional (2D) materials may enable a general approach to the introduction of a dipole at a semiconductor surface as well as control over other properties of the double layer at a semiconductor/liquid interface.
Lewis, Nathan S.   +2 more
core  

Nitric acid activation of graphite granules to increase the performance of the non-catalyzed oxygen reduction reaction (ORR) for MFC applications [PDF]

open access: yes, 2009
Nitric acid and thermal activation of graphite granules were explored to increase the electrocatalytic performance of dissolved oxygen reduction at neutral pH for microbial fuel cell (MFC) applications.
Duţeanu, Narcis Mihai   +5 more
core   +4 more sources

Heteroatom‐Engineering Promoted Co9S8 Bi‐functional Electrocatalyst for Hydrazine‐Assisted Hydrogen Production at Industrial Current Density

open access: yesAdvanced Functional Materials, EarlyView.
Fe and P co‐doped Co9S8 nanocorals (Fe, P‐Co9S8) are successfully synthesized by a heteroatom engineering strategy, which exhibit outstanding bifunctional electrocatalytic performance for both the hydrogen evolution reaction (HER) and hydrazine oxidation reaction (HzOR).
Yuying Meng   +8 more
wiley   +1 more source

Investigation of the hydrochemical quality of surface waters of the Oued Inaouen watershed near the Driss 1er dam (Morocco) using multivariate statistical methods and diagram analysis [PDF]

open access: yesBIO Web of Conferences
This study, conducted from 2021 to 2023, aimed to determine the physico-chemical quality of the surface waters of the Oued Inaouen watershed near the Idriss 1st dam, and to identify existing pollutants and their origins.
Ben Abbou Mohamed   +9 more
doaj   +1 more source

Industrial Strength Electrochemistry (Winter 2003)

open access: yesThe Electrochemical Society Interface, 2003
In this issue of Interface we offer features related to heavy-duty electrochemistry.
openaire   +1 more source

Electrocarboxylation of chloroacetonitrile mediated by electrogenerated cobalt(I) phenanthroline [PDF]

open access: yes, 2010
The electrocarboxylation of chloroacetonitrilemediated by [Co(II)(phen)3]2+ has been investigated. Cyclic voltammetry studies of [Co(II)(phen)3]2+ have shown that [Co(I)(phen)3]+, an 18 electron complex, activates chloroacetonitrile by an oxidative ...
Fabre, Paul-Louis, Reynes, Olivier
core   +3 more sources

Three‐Dimensional Hierarchical Nanowire‐Networks with Deep‐Focus Tolerance and Adhesion Robustness for Harsh‐Environment SERS Sensing

open access: yesAdvanced Functional Materials, EarlyView.
A 3D nanowire‐network SERS substrate with robust adhesion is developed, featuring pronounced z‐direction optical activity, ultralow detection limit (1.5 × 10−13 M), and excellent signal uniformity (RSD < 10%). Enabled by enhanced light scattering, increased optical density of states, and structural reinforcement, the substrate demonstrates stable, high‐
Jinglai Duan   +6 more
wiley   +1 more source

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