Results 141 to 150 of about 24,169 (305)

One‐Step Electrodeposition of Iron Oxyhydroxide Onto 3D Porous Graphene Substrates for on Chip Asymmetric Micro‐Supercapacitors

open access: yesBatteries &Supercaps, Volume 8, Issue 3, March 2025.
A micro‐supercapacitor with electrodeposited iron oxyhydroxide (FeOOH) as the negative electrode and birnessite manganese oxide (MnO2) as the positive electrode achieves a 2 V working voltage, stable cycling in an aqueous electrolyte, and high energy and power densities of 21 μWh cm‐2 and 2.5 mW cm‐2 respectively.
Filipe Braga   +6 more
wiley   +1 more source

ECA and OCP sign agreement on innovation and agriculture investments [PDF]

open access: yes, 2019
The Economic Commission for African (ECA) and the OCP S.A. (formerly known as the Cherifien Office of Phosphates) signed an MoU aimed at strengthening collaboration on innovations and investments in agriculture using science and technologies.

core  

Recessed Microelectrodes as a Platform to Investigate the Intrinsic Redox Process of Prussian Blue Analogs for Energy Storage Application

open access: yesBatteries &Supercaps, Volume 8, Issue 3, March 2025.
A microelectrochemical analytical tool is proposed for the accelerated evaluation of the intrinsic electrochemical performance of Prussian‐blue analogues as solid active materials in Na+‐based batteries. By confining the solid active material inside a recessed microelectrode, accelerated voltammetric and galvanostatic cycling at high C‐rate become ...
Nomnotho Jiyane   +9 more
wiley   +1 more source

Assessing food safety practices and challenges in Nigerian food systems: a review of current trends and future directions

open access: yesFood Safety and Risk
This review critically examines food safety practices and emerging challenges across Nigerian food systems, emphasizing their implications for public health, trade, and national development.
Daniel Omeodisemi Omokpariola
doaj   +1 more source

OP19.09: Comparison of endometrial thickness in OCP users and non OCP users [PDF]

open access: yesUltrasound in Obstetrics & Gynecology, 2006
M. Barati   +3 more
openaire   +1 more source

Recent Strategies Toward Durable and Ion‐Tolerant Transition Metal‐Based Electrocatalysts in Seawater Electrolysis

open access: yesCarbon Energy, EarlyView.
Recent strategies address these challenges through ion‐specific regulation, encompassing chloride‐tolerant and chloride‐regulating anodes together with cathode designs that suppress OH− accumulation and Mg2+/Ca2+ coupling. This ion‐management‐oriented framework provides general guidelines for achieving stable, selective, and scalable seawater ...
Lina Li   +5 more
wiley   +1 more source

RESPONSE OF OCP BIOACCUMULATION BY Corbicula TO CHANGE OF OCP CONCENTRATIONS IN WATER

open access: yesJournal of Japan Society of Civil Engineers, Ser. G (Environmental Research), 2013
TAKABE, Yugo   +7 more
openaire   +2 more sources

Insights Into the Effect of Humic Acids Extraction From Coal on Hard Carbon Microstructure and Sodium Storage Properties

open access: yesCarbon Energy, EarlyView.
This study employs a simple solid‐phase alkali‐oxygen oxidation (SAO) method to extract inherent components (humic acids) from coal. We successfully extracted yellow, brown, and black humic acids by adjusting the amount of alkali. Among them, brown humic acid extraction created abundant ultra‐micropores and closed pores, greatly enhancing sodium ...
Ruizhen Song   +8 more
wiley   +1 more source

In Situ Grown Bimetallic (Ni, Fe)12P5 Nanoneedles With Favorable Electronic Structures and Superwetting Surfaces for Highly Efficient and Durable Seawater Splitting at Industrial Current Density

open access: yesCarbon Energy, EarlyView.
A three‐dimensional bimetallic (Ni, Fe)12P5 nanoneedle array anchored on metal foam with superwetting surfaces and modulated electronic structures is in situ fabricated via a facile one‐step phosphidation strategy (Fe–Ni12P5 NAs@NFF). This material demonstrates exceptional bifunctional activity and long‐term stability at the industrial‐scale current ...
Jingcheng Zhang   +7 more
wiley   +1 more source

Electrochemical Design of Atomically Conformal Ga2O3 Buffer Layers via Cu2O‐Catalyzed Nitrate Reduction Reaction for Efficient Cu2O Photocathodes

open access: yesCarbon Energy, EarlyView.
Cu2O catalyzes nitrate reduction to locally generate OH− at the electrode surface, enabling the first uniform electrochemical deposition of Ga2O3. The Cu2O/Ga2O3‐based photocathodes achieve onset potentials above 1 VRHE, 3.8% solar‐to‐hydrogen efficiency, and stable operation for over 60 h in all‐inorganic tandem PEC devices.
Ji Hoon Choi   +6 more
wiley   +1 more source

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