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Articles 1 - 4 of 4
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One-Pot Synthesis Of N-Rich Porous Carbon For Efficient Co2 Adsorption Performance, Qiyun Yu, Jiali Bai, Muslum Demir, Bilge N. Altay, Xin Hu, Linlin Wang
One-Pot Synthesis Of N-Rich Porous Carbon For Efficient Co2 Adsorption Performance, Qiyun Yu, Jiali Bai, Muslum Demir, Bilge N. Altay, Xin Hu, Linlin Wang
Articles
N-enriched porous carbons have played an important part in CO2 adsorption application thanks to their abundant porosity, high stability and tailorable surface properties while still suffering from a non-efficient and high-cost synthesis method. Herein, a series of N-doped porous carbons were prepared by a facile one-pot KOH activating strategy from commercial urea formaldehyde resin (UF). The textural properties and nitrogen content of the N-doped carbons were carefully controlled by the activating temperature and KOH/UF mass ratios. As-prepared N-doped carbons show 3D block-shaped morphology, the BET surface area of up to 980 m2/g together with a pore volume of 0.52 cm3/g …
Sustainable Applications Of Biochar Derived From Food Waste And Paper Feedstocks, Steven T. Barber
Sustainable Applications Of Biochar Derived From Food Waste And Paper Feedstocks, Steven T. Barber
Theses
There is general agreement in the scientific literature that carbon sequestration is an important tool to mitigate human-induced climate change, but current methods are lacking scalability and economic viability. Though charcoal has been a common fuel for millennia, it has only very recently been purposefully created to sequester carbon. This carbon dense material, called biochar, has been extensively studied as a soil amendment though less studied for industrial applications. Chapter 1 provides an in-depth overview and background discussion of the history and definitions of biochar, distinguishing it from closely related though often misconstrued terms like charcoal, activated carbon, and carbon …
Combating Global Warming: Modeling Enhanced Rock Weathering Of Wollastonite Using Density Functional Theory, Brian Luan
Combating Global Warming: Modeling Enhanced Rock Weathering Of Wollastonite Using Density Functional Theory, Brian Luan
Theses
Negative emissions technologies target the removal of carbon dioxide from the atmosphere as a way of combating global warming. Enhanced rock weathering (ERW) is a vital negative emissions technology that applied globally could remove gigatons of carbon dioxide per year from the atmosphere. In ERW, silicate minerals exposed to the atmosphere trap CO2 via mineral carbonation as thermodynamically stable carbonates. To obtain an atomic scale understanding of the weathering process and to design more reactive silicates for enhanced rock weathering, carbon dioxide adsorption on low Miller index wollastonite (CaSiO3) surfaces was modeled using density functional theory. Atomic scale structure of …
Sustainable Food Waste Management Through The Integration Of Anaerobic Digestion And Thermochemical Processes, Diana Carolina Rodriguez Alberto
Sustainable Food Waste Management Through The Integration Of Anaerobic Digestion And Thermochemical Processes, Diana Carolina Rodriguez Alberto
Theses
The processing of food waste along with animal manure through anaerobic digestion (AD) is a popular waste management strategy. However, there is the concern that with the proliferation of AD the management of its nutrient-rich effluent, known as digestate, becomes a challenge. Current digestate management practices not only present environmental risks, but also issues related to the seasonality of field spreading and the storage and transportation of large volumes of material. The integration of the AD process with thermochemical conversion (TC) could help reduce some of these issues. The production of biochar from materials already available in the digester setting, …