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A Loop System for Hybrid Amine-Assisted CO2 Capture and Mineral Carbonation KU Leuven

Yafei Mao
Anthropogenic CO2 emissions have significantly increased, with an average annual release of 18.7 billion tons over the past decade, raising atmospheric CO2 levels to 416 ppm. To mitigate the resulting greenhouse effect, technologies such as Carbon Capture, Utilization & Storage (CCUS) are being explored. Amine-based CO2 capture is efficient but energy-intensive. This thesis investigates a novel hybrid technology, CO2 Capture-Mineral ...

Ultrathin NiO nanosheets anchored to a nitrogen-doped dodecahedral carbon framework for aqueous potassium-ion hybrid capacitors KU Leuven

Elke Debroye, Feili Lai
Hierarchical porous structures and well-modulated interfacial interactions are essential for the performance of electrode materials. The energy storage performance can be promoted by regulating the diffusion behavior of the electrolyte and constructing a coupled interaction at heterogeneous interfaces. Herein, we have synthesized ultrathin NiO nanosheets anchored to nitrogen-doped hierarchical porous carbon (NiO/N-HPC) and applied it to ...

Harnessing Nuclear Magnetic Resonance Spectroscopy to Decipher Structure and Dynamics of Clathrate Hydrates in Confinement: A Perspective. KU Leuven

Maarten Houlleberghs, Sambhu Radhakrishnan, Vinodchandran Chandrasekharan Nair, Alysson Morais, Johan Martens, Eric Breynaert
This perspective outlines recent developments in the field of NMR spectroscopy, enabling new opportunities for in situ studies on bulk and confined clathrate hydrates. These hydrates are crystalline ice-like materials, built up from hydrogen-bonded water molecules, forming cages occluding non-polar gaseous guest molecules, including CH4, CO2 and even H2 and He gas. In nature, they are found in low-temperature and high-pressure conditions. ...

Implications of the EU ETS on the level-playing field between carbon capture storage & utilisation KU Leuven

Jelle Meus
System modelling efforts have shown that carbon capture is a key technology to enable a cost-effective reduction of hard-to-abate emissions in energy-intensive industries. The CO2 that is captured can either be utilised (CCU), or stored with carbon capture and storage (CCS). This paper examines the implications of both European carbon pricing mechanisms (ETS I & ETS II) on the level-playing field between CCS and CCU investments. Our ...

Coupling coordination analysis of the water-food-energy‑carbon nexus for crop production in Central Asia Vrije Universiteit Brussel

Yanan Hu, Weili Duan, Shan Zou, Yaning Chen, Philippe De Maeyer, Tim Van De Voorde, Kaoru Takara, Patient Mindje Kayumba, Alishir Kurban, Peter L.M. Goethals, et al.

The growing resource constraints around land, water, and energy while tackling climate change in Central Asia threaten the agricultural sustainability that underpins food security and people livelihoods. However, there is a lack of comprehensive long-term evaluations of the intricate water-food-energy‑carbon nexus on a wider scale, hindering sustainable agriculture across this region. This study developed an integrated top-down and bottom-up ...

A review on co-metabolic degradation of organic micropollutants during anaerobic digestion: Linkages between functional groups and digestion stages KU Leuven

Ilse Smets, Lise Appels
The emerging presence of organic micropollutants (OMPs) in water bodies produced by human activities is a source of growing concern due to their environmental and health issues. Biodegradation is a widely employed treatment method for OMPs in wastewater owing to its high efficiency and low operational cost. Compared to aerobic degradation, anaerobic degradation has numerous advantages, including energy efficiency and superior performance for ...

Embodied greenhouse gas emissions of buildings—Machine learning approach for early stage prediction Vrije Universiteit Brussel

Sandie Kate Fenton, Adrian Munteanu, Klaas De Rycke, Lars De Laet
Observations made in architecture and engineering practices have highlighted the need to access buildings embodied greenhouse gas (GHG) emissions at early stages as well as a general understanding of the impacts of design decisions. This research addresses this need, and lack of readily available methods by leveraging knowledge from existing building’s databases, and using contextual and descriptive data, such as structure typology and location, ...

Paracoccus kondratievae produces poly(3-hydroxybutyrate) under elevated temperature conditions Vrije Universiteit Brussel

Radwa Moanis, Hannelore Geeraert, Niko Van den Brande, Ulrich Hennecke, Eveline Peeters

As part of ongoing efforts to discover novel polyhydroxyalkanoate-producing bacterial species, we embarked on characterizing the thermotolerant species, Paracoccus kondratievae, for biopolymer synthesis. Using traditional chemical and thermal characterization techniques, we found that P. kondratievae accumulates poly(3-hydroxybutyrate) (PHB), reaching up to 46.8% of the cell's dry weight after a 24-h incubation at 42°C. Although P. ...

Prognostic scores for ursodeoxycholic acid-treated patients predict graft loss and mortality in recurrent primary biliary cholangitis after liver transplantation. KU Leuven

Frederik Nevens
BACKGROUND & AIMS: Recurrent primary biliary cholangitis (rPBC) develops in approximately 30% of patients and negatively impacts graft and overall patient survival after liver transplantation (LT). There is a lack of data regarding the response rate to ursodeoxycholic acid (UDCA) in rPBC. We evaluated a large, international, multi-center cohort to assess the performance of PBC scores in predicting the risk of graft and overall survival after ...