Font Size: a A A

Examining the Crystal Morphology of a Cobalt-Based Metal-Organic Framework

Posted on:2016-02-01Degree:M.SType:Thesis
University:Northeastern UniversityCandidate:Le, Duy CongFull Text:PDF
GTID:2471390017482158Subject:Chemical Engineering
Abstract/Summary:
The increase in atmospheric carbon dioxide concentration has been a growing concern since the second half of the twenty-first century. This potential greenhouse gas has contributed to rising global temperatures and climate change. The switch to renewable energy sources cannot happen instantaneously, and so the development of technology for carbon dioxide capture and storage has become increasingly important. Porous solid materials are very good candidates for this application due to their quicker and cheaper regenerative ability as compared to existing methods.;Metal organic frameworks (MOFs) are a rapidly growing class of crystalline nanoporous materials, which have received much attention in the past decade for their very desirable properties including high surface area, high uniformity and pore volume. In addition, these materials can be tailored to specific applications by modifying the building blocks that comprise them. MOFs consist of both organic and inorganic materials in the form of metal ions / clusters which are connected by organic ligands to generate a large open framework. Selection of different ligands such as carboxylates, imidazolates, or any molecule with anionic oxygen, along with metal ions such as transition metals allows for the creation of infinitely many MOF configurations.;The goal of this study is to synthesize and further understand the crystallinity of a new series of metal organic frameworks containing simple molecules that can be modified and tuned according to demands. Specifically, two frameworks are investigated, one with ethylenediamine as a linker group (NEU-1) and the other with 1,6-hexanediamine as the linker group (NEU-3).
Keywords/Search Tags:Metal, Organic
Related items