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Full-Text Articles in Social and Behavioral Sciences
Budgeting Soil Carbon In The Clean Coal Discussion: Elemental And Isotopic Measurements And Modeling Of Soil Carbon Uptake On Reclaimed Mining Sites, Alice Jones, Peter Acton, James Fox, Harry Rowe, Darren Martin, Elliott Campbell
Budgeting Soil Carbon In The Clean Coal Discussion: Elemental And Isotopic Measurements And Modeling Of Soil Carbon Uptake On Reclaimed Mining Sites, Alice Jones, Peter Acton, James Fox, Harry Rowe, Darren Martin, Elliott Campbell
Alice Jones
While recent research has focused on the use of carbon capture and sequestration technology feasibility, less focus has been placed upon terrestrial carbon storage affected by coal mining in the context of the clean coal debate. Recent research has shown that the initial disturbance of soil and above-ground carbon pools caused by surface coal mining methods can produce a significant carbon loss from the terrestrial ecosystem, thus increasing the coal carbon footprint of coal. However there is a lack of information regarding the uptake of CO (sub 2) on reclaimed mining sites during re-growth and re-establishment of the soil carbon …
The Microbial Pool And Soil Carbon Cycling On Reclaimed Surface Mine Sites, Alice Jones, Guy Evans, James Fox
The Microbial Pool And Soil Carbon Cycling On Reclaimed Surface Mine Sites, Alice Jones, Guy Evans, James Fox
Alice Jones
The southern Appalachian region is an important source of coal resources. The wide scale practice of surface mining in this region leads to the landscape-scale removal of surface material and soils, a large carbon reservoir and important component of the carbon cycle. To date, few scientific studies have examined the development of the soil carbon cycle on post-reclamation mine sites in this region. In particular, development of the microbial pool and its role in carbon cycling in post-reclamation mine soils remains poorly understood. This study measured microbial biomass and soil respiration, as well as bulk soil total organic carbon, total …
A Baseline Greenhouse Gas Inventory For Oberlin: Stepping Up To The Challenge Of Climate Neutrality, Nathaniel Flaschner Meyer
A Baseline Greenhouse Gas Inventory For Oberlin: Stepping Up To The Challenge Of Climate Neutrality, Nathaniel Flaschner Meyer
Honors Papers
The City of Oberlin joined the International Council for Leadership in Environmental Initiatives (ICLEI) in 2007, committing to reduce greenhouse gas emissions through ICLEI's five-milestone process. As the first official step in this process, I conducted greenhouse gas inventories for the years 2001 and 2007 for community-wide and municipal operations emissions. I found that the community emitted 174,400 tons of carbon dioxide equivalent in 2007, more than half of which was associated with the consumption of coal-intensive electricity. This amounts to 20.9 tons CO2e per resident annually. Of the community's overall emissions, the commercial sector, including all Oberlin College properties, …
Electrocatalytic Reduction Of Carbon Dioxide By Cobalt-Phthalocyanine-Incorporated Polypyrrole, Jun Chen, Gordon G. Wallace, Jiaxing Lu, Aijian Zhang, Weimin Zhang
Electrocatalytic Reduction Of Carbon Dioxide By Cobalt-Phthalocyanine-Incorporated Polypyrrole, Jun Chen, Gordon G. Wallace, Jiaxing Lu, Aijian Zhang, Weimin Zhang
Faculty of Science - Papers (Archive)
In the quest for catalysts for the electrocatalytic reduction of , a cobalt phthalocyanine/polypyrrole (CoPc/PPy) composite electrode has been developed. The electrode is prepared by drop casting CoPc onto the PPy film from the CoPc/tetrahydrofuran solution (1 mg/mL). The onset potential for reduction occurred at potentials 160 mV more positive than observed with a simple PPy electrode. Furthermore, in the potentiostatic electrolysis, the catalytic current for reduction at CoPc/PPy was very stable, with a higher current density and current efficiency when compared to the PPy electrode.
Towards Novel Entangled Carbon Nanotube Composite Electrodes, Gordon G. Wallace, P. Sherrell, J. Chen, A. Minett
Towards Novel Entangled Carbon Nanotube Composite Electrodes, Gordon G. Wallace, P. Sherrell, J. Chen, A. Minett
Faculty of Science - Papers (Archive)
The commercialization of carbon nanotube electrodes is impeded by the lack of bulk processing techniques. One approach to overcome this impediment is the growth of macroscopic CNT composite architectures which do not require any extra processing. Unfortunately the fundamental growth mechanisms of these carbon composites is not currently understood. To probe this mechanism a systematic examination of the effect of certain growth parameters was undertaken. Within this paper we present the promising preliminary findings of this study revealing extremely complex relationships between variables during growth. We also present the performance of the produced architectures as capacitor electrodes and the further …
Development And Application Of A System For The Analysis Of Atmospheric, Water And Sediment Nitrogen And Carbon, Ann Stavert, Stephen R. Wilson, Dianne F. Jolley
Development And Application Of A System For The Analysis Of Atmospheric, Water And Sediment Nitrogen And Carbon, Ann Stavert, Stephen R. Wilson, Dianne F. Jolley
Faculty of Science - Papers (Archive)
Eutrophication and climate change, key environmental concerns, are both linked to the carbon and nitrogen cycles hence the improved understanding of these cycles is essential. Currently, there is no system that simultaneously measures the fluxes of the three key gas phase products of nitrogen and carbon cycling (CO2, CH4 and N2O) in submerged ecosystems with hourly time resolution. A “Lake-in-a-box” (mesocosm) was developed in the laboratory which allowed the monitoring of key components of the carbon and nitrogen cycles within the air, water and sediments. The approach is automated, simple and time efficient and novel in its ability to examine …
Evaporation And Carbon Dioxide Exchange By Sugar Cane Crops, G Bryant, Travis A. Naylor, Stephen R. Wilson, O T Denmead, David W. Griffith, B.C.T. Macdonald, I. White
Evaporation And Carbon Dioxide Exchange By Sugar Cane Crops, G Bryant, Travis A. Naylor, Stephen R. Wilson, O T Denmead, David W. Griffith, B.C.T. Macdonald, I. White
Faculty of Science - Papers (Archive)
RECENT developments in water and carbon trading and biofuel production highlight the need to document the water and carbon balances of Australia’s cropping systems including sugarcane. This paper presents the results of studies of evaporation and CO2 exchange throughout the growing seasons of two sugarcane crops, a 1st ratoon crop at Murwillumbah where burnt-cane was practised and a 5th ratoon crop at Mackay where trash blanketing was employed. At both locations, a micrometeorological eddy covariance technique was employed to measure water vapour and CO2 exchange between crop and atmosphere and manual and automatic chambers to measure CO2 emission from the …
Carbon-Nanotube Biofiber Microelectrodes, Carol M. Lynam, Gordon G. Wallace, Willo Grosse
Carbon-Nanotube Biofiber Microelectrodes, Carol M. Lynam, Gordon G. Wallace, Willo Grosse
Faculty of Science - Papers (Archive)
All-biocompatible carbon-nanotube fibers were formed using wet spinning. In this process the spinning solutions used are carbon nanotubes dispersed using biomolecules such as hyaluronic acid and chitosan. We compare the effect of a coagulation bath containing either a polymer binder, e.g., polyethyleneimine, or simply a precipitating solvent system, e.g., acetone. The electrical, mechanical, and morphological properties of the resulting fibers were studied. Biocompatible electrode structures were generated suitable for a variety of biomedical applications, e.g.,in biosensors or in systems where the application of an electrical field is advantageous e.g., stimulation of electrically excitable cells such as nerve and muscle cells.