نتایج جستجو برای: renewable materials
تعداد نتایج: 467342 فیلتر نتایج به سال:
Carbon-based structures are the most versatile materials used in the modern field of renewable energy (i.e., in both generation and storage) and environmental science (e.g., purification/remediation). However, there is a need and indeed a desire to develop increasingly more sustainable variants of classical carbon materials (e.g., activated carbons, carbon nanotubes, carbon aerogels, etc.), par...
The latest scientific data confirmed that the earth's climate is rapidly changing. Therefore, it has been widely accepted worldwide that global warming is by far the greatest threat and challenge in the new millennium. The main factor that causes global warming is the release of greenhouse gases to the environment. In order to reduce the emission of these greenhouse gases and to promote sustain...
To date, a wide range of industrial materials such as solvents, fuels, synthetic fibers, and chemical products are being manufactured from petroleum resources. However, rapid depletion of fossil and petroleum resources is encouraging current and future chemists to orient their research toward designing safer chemicals, products, and processes from renewable feedstock with an increased awareness...
Alternative energy is any energy source that is an alternative to fossil fuel. These alternatives are intended to address concerns about such fossil fuels. Today, because of the variety of energy choices and differing goals of their advocates, defining some energy types as "alternative" is highly controversial. Most of the recent and existing alternative sources of energy are discussed below. K...
The Renewable Energy Materials Research Science and Engineering Center (REMRSEC) has made substantial progress in its research mission of identifying, launching and advancing innovative research directions in materials for renewable energy, and in its human resource mission of educating the next generation of renewable energy professionals, reaching out to students and the general community, an...
Liquid scintillation spectrometry of 14C in gasoline/ethanol and diesel oil was carried out using QUANTULUS® and straight mixtures of fuel and an organic scintillation cocktail. A linear correlation was found between the concentration of carbon that originates from the bioethanol (biocarbon) and the fuel mixture's 14C activity in the range 0 – 100 % (m/m) bioethanol content. Because of the good...
Industrial chemicals and materials are currently derived mainly from fossil-based raw materials, which are declining in availability, increasing in price and are a major source of undesirable greenhouse gas emissions. Plant oils have the potential to provide functionally equivalent, renewable and environmentally friendly replacements for these finite fossil-based raw materials, provided that th...
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