Results 141 to 150 of about 123,947 (306)

CO2 Conversion by Oxygen-Enriched Gasification of Wood Chips

open access: yesEnergies
With increasing efforts to lower CO2 emissions globally, the demand for carbon-based resources in industries remains on a high level, leading to new technologies being able to provide those essential carbon sources.
Clemens Schmittmann, Peter Quicker
doaj   +1 more source

A Kuznets Curve for Recycling [PDF]

open access: yes
The paper aims at extending the debate on Environmental Kuznets Curves to the case of non-renewable resources and to discuss the driving forces that might give rise to EKC's in this case.
Karen Pittel
core  

The Management of Food Waste Recycling for a Sustainable Future: A Case Study on South Korea

open access: yes
South Korea has made remarkable progress in food waste recycling through efficient policies. Around 30% of total waste is food waste, with over 90% of it effectively separated and collected. Challenges remain in optimizing biogas production and utilizing
Esther Lee   +3 more
core   +1 more source

Trophic Diversity in Duckweed: Mixotrophy, More Than the Sum of its Extremes

open access: yesAdvanced Science, EarlyView.
In the context of rising DOC in aquatic environments, mixotrophic duckweed may impact carbon cycling by acting as either a carbon sink, as they absorb CO2 through photosynthesis, or a carbon source, as they release CO2 through respiration of absorbed DOC, which depends on DOC concentration, light availability, temperature, and other environmental ...
Zuoliang Sun   +5 more
wiley   +1 more source

Recycling 102 [PDF]

open access: yes, 2011
This document provides information on recycling such as South Carolina's recycling and waste reduction goals, SC's current MSW recycling rate, oil recycling, and total solid waste ...
South Carolina Office of Solid Waste Reduction and Recycling
core  

An Embodied Paper‐Based Microfluidic Al‐Air Battery for Enduring Untethered Insect‐Scale Robots

open access: yesAdvanced Science, EarlyView.
This work presents a centimeter‐scale microfluidic aluminum–air battery (MFAAB) with dual‐surface anode and F−‐mediated byproduct decomposition. The design enables a high capacity of 2697.05 mAh/g Al and delivers tens of milliwatts to power LEDs, motors, and a toy car.
Yun Yang   +5 more
wiley   +1 more source

Multilayer Structure Ammoniated Collagen Fibers for Fast Adsorption of Anionic Dyes

open access: yesACS Omega, 2021
Wei Luo   +9 more
doaj   +1 more source

Impurity Tolerance in LiFePO4 Cathodes: Contrasting Structural, Electronic, and Electrochemical Roles of Residual Ni and Cr

open access: yesAdvanced Science, EarlyView.
Impurity tolerance in LiFePO4 cathodes varies strongly with impurity type and content. Low Ni levels are accommodated within the lattice with minimal structural disruption, whereas higher Ni contents introduce antisite disorder. In contrast, Cr impurities segregate from the LiFePO4 framework, blocking lithium‐ion pathways and leading to inferior ...
Minjin Kim   +3 more
wiley   +1 more source

A life cycle based energy and greenhouse gas emission assessment of C&D waste and container glass recycling in the City of Cape Town

open access: yes, 2012
Includes abstract.Includes bibliographical references.The rate at which the world is consuming energy is growing, and with climate change an immediate concern (Stern, 2006), it is incumbent for the global society to find alternate ways of fuelling human ...
Vossberg, Cherilyn
core  

Efficient Direct Recycling of Spent Batteries: Integrated Lithiation and Delamination

open access: yesAdvanced Science, EarlyView.
An integrated process for the delamination and relithiation of spent cathodes, LixNi0.6Co0.2Mn0.2O2 and LixFePO4, under open‐air conditions is proposed. The transition‐metal (Ni) oxidation state in the cathode is reduced by the oxidation of diethylene glycol, facilitating relithiation. Glycol aldehyde formation induces 100% electrode delamination.
Jeonghwan Song   +11 more
wiley   +1 more source

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