Results 91 to 100 of about 69,795 (304)

Utilization of cocoa pod husk and wood charcoal into briquettes as an environmentally friendly alternative fuel.

open access: yesCoffee and Cocoa Research Journal
Many efforts have been made to convert cocoa pod husk waste into charcoal briquettes, but they have not yet met the established Indonesian National Standard (SNI).
Mohammad Arriza Novan Tahta Aunillah   +5 more
doaj   +1 more source

Electrochemically Engineered PEDOT:PSS/MXene Composite Electrode for the Label‐Free Procalcitonin Detection

open access: yesAdvanced Materials Interfaces, EarlyView.
Procalcitonin is a key biomarker for bacterial infections, but conventional detection methods are often time‐consuming. Here, we present an electrochemical sensor based on highly conductive Ti3C2Tx MXene combined with PEDOT:PSS, enabling direct antibody immobilization, while a bovine serum albumin coating provides antifouling protection.
Angelika Banaś   +6 more
wiley   +1 more source

Comparing specific capacitance in rice husk-derived activated carbon through phosphoric acid and potassium hydroxide activation order variations

open access: yesScientific Reports
This manuscript investigates the influence of the chemical activation step order and process parameters on the specific capacitance of activated carbon derived from rice husk. The chemical activation was performed either before or after the carbonization
Nasser A. M. Barakat   +2 more
doaj   +1 more source

Determination of carbon-carbon connectivities, assignment of quaternary carbons, and extraction of carbon-carbon coupling constants by carbon-relayed hydrogen-carbon spectroscopy

open access: yesJournal of Magnetic Resonance (1969), 1985
Nowadays many possibilities exist to elucidate carbon-carbon connectivity. In hydrogen-bearing carbon systems C-C connectivities can be traced out most conveniently in an indirect way by a combination of H-H COSY (I) and H-C CQSY (2). In case of overlapping ‘proton signals ambiguities can be removed by heteronuclear relayed spectroscopy (3) and ...
Kessler, Horst   +2 more
openaire   +2 more sources

A Reusable Polymeric Sensor Based on Green‐Synthesized CQDs@ZIF‐8 for the Rapid Detection of Nitro‐Explosive Picric Acid

open access: yesAdvanced Materials Interfaces, EarlyView.
This study presents the rational design and synthesis of a highly luminescent polymeric nanocomposite. Initially, highly fluorescent carbon quantum dots (CQDs) are synthesized via a facile hydrothermal method using citric acid and β‐alanine as precursors, followed by rigorous purification through centrifugation and filtration.
Yunus Emre Toprak   +2 more
wiley   +1 more source

Zinc-Decorated and Nitrogen-Functionalized Hierarchical Porous Carbons for Carbon Dioxide Capture

open access: yesApplied Sciences
This study developed a highly facile method to synthesize Zn-decorated and nitrogen-doped hierarchical porous carbons for carbon dioxide (CO2) adsorption.
Yu-Chun Chiang   +2 more
doaj   +1 more source

Experiment of Industrial Waste Absorption using Activated Carbon from Coal of Tanjung Tabalong, South Kalimantan

open access: yesIndonesian Journal on Geoscience, 2014
DOI: 10.17014/ijog.v6i4.130Activated carbon made from Tanjung Tabalong coal was investigated its absorption capability to organic and inorganic elements in industrial waste. Coal was carbonized at low temperature of 600C to produce semicoke, and then was
M. Ulum Gani, Widodo Widodo
doaj   +1 more source

Cellulose carbon-CVD carbon composites

open access: yesCarbon, 1975
Carbon-carbon composites have been fabricated using a cellulose powder which is molded at low pressures, carbonized at 800°C and infiltrated by a CVD technique at 700°C using propylene as a source of carbon. Infiltration rate at time t is governed by the amount of open porosity existing in the sample at this time.
S. Marinkovic   +3 more
openaire   +2 more sources

Water‐Stable Paper‐Based Laser‐Induced Graphene With Asymmetric Water Adhesion and Wettability

open access: yesAdvanced Materials Interfaces, EarlyView.
Paper‐based electronics are attractive for sustainable and disposable devices, but often fail in wet environments. By introducing Parafilm into cellulose paper combined with laser conversion, two graphene surfaces with different water interactions are created.
Lingyin Meng   +3 more
wiley   +1 more source

Synergistic Effects of Biochar and Arabidopsis helleri on Soil Cd and Pb Bioavailability and Uptake and Disposition

open access: yesBioResources
The potential effects of combining biochar with hyperaccumulator plants on heavy metal stabilization and uptake in Cd and Pb-contaminated soils have received limited attention.
Liqiang Cui   +12 more
doaj  

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