Results 121 to 130 of about 383,342 (340)

High‐Performance Zero‐Gap Glycerol‐Fed Electrolyzer for C3 Chemicals and Hydrogen Production

open access: yesAdvanced Materials, EarlyView.
This work presents a dynamic, self‐regulating operation strategy that enables selective glycerol electrooxidation in the OER‐free regime, co‐producing C3 chemicals and hydrogen at cell voltages below 1.25 V. Voltage‐ and temperature‐resolved analyses define optimal operating conditions, achieving a sustained current density of 500 mA cm−2 at ∼1.21 V ...
Shayan Angizi   +11 more
wiley   +1 more source

Fossil-fuels, bio-fuels and food: Raking priorities [PDF]

open access: yes
This paper deals with the question of the trade-offs between bio-fuels, fossil-fuels, and food. To do so an analysis is conducted taking into consideration the differences in relative prices and in the productive structure among the countries.
Dias, Guilherme Leite da Silva   +1 more
core   +1 more source

A Net Energy-based Analysis for a Climate-constrained Sustainable Energy Transition

open access: yes, 2015
The transition from a fossil-based energy economy to one based on renewable energy is driven by the double challenge of climate change and resource depletion. Building a renewable energy infrastructure requires an upfront energy investment that subtracts
Bardi, Ugo   +2 more
core   +1 more source

Energy‐Efficient, Sustainable Cascade Glucose Electrooxidation into Glucaric Acid

open access: yesAdvanced Materials, EarlyView.
This study presents a tandem system that efficiently converts glucose into glucaric acid while generating renewable electricity. By decoupling the oxidation process into two cascaded steps, the system achieves an overall 90% Faradaic efficiency and 80% conversion efficiency at ∼0.6 VRHE, significantly reducing energy consumption compared to traditional
Mingming He   +15 more
wiley   +1 more source

Mercury in the environment [PDF]

open access: yes, 1972
Problems in assessing mercury concentrations in environmental materials are discussed. Data for situations involving air, water, rocks, soils, sediments, sludges, fossil fuels, plants, animals, foods, and man are drawn together and briefly evaluated ...
Fulkerson, W.   +3 more
core   +1 more source

Sugar utilization in fermentation of nipa frond sap by saccharomyces cerevisiae [PDF]

open access: yes, 2020
In recent years, concerns about the reduction of energy and materials, as well as limits to the ecosystem's assimilation capacity of residues have been raised in the social, political and business arena.
Abdul Halim, Norhazimah   +5 more
core  

Photocatalytic Water Splitting on the Lunar Surface: Prospects for In Situ Resource Utilization

open access: yesAdvanced Materials Interfaces, EarlyView.
Water has been found in craters on the moon nearby locations which are illuminated >80% of the time. Photocatalysis uses energy from sunlight to drive chemical reactions such as water splitting to produce oxygen and hydrogen. It is a scalable technology that requires lighter equipment and utilizes resources available on the moon. ABSTRACT The discovery
Ranjani Kalyan   +6 more
wiley   +1 more source

Carbon taxation, prices and inequality in Australia [PDF]

open access: yes
from the combustion of fossil fuels, has led to proposals for non-market mechanisms such as regulation, and market mechanisms such as tradable emissions permits and carbon taxes, in order to reduce emissions. Market methods are usually preferred in terms
Antonia Cornwell, John Creedy
core  

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