Tuning the Properties of N-Doped Biochar for Selective CO₂ Electroreduction to CO

Nitrogen-doped (N-doped) carbon catalysts have been widely studied for electrochemical CO₂ reduction to CO. However, the correlation between the physicochemical properties of N-doped carbon catalysts and their electrocatalytic performance for the CO₂RR is still unclear. Herein, a series of N-doped biochar catalysts with...

"Hydrocyclone separation of polymetallic nodules from surrounding water and sediment in deep-sea mining operations"

Growing populations, high-technology applications and the energy transition raise the demand for rare earth elements. As a secure supply in the future is all but certain, opportunities arise for deep-sea mining. Polymetallic nodules<br/>that are located on the vast, sediment-covered ocean floors, are one of the more promising deep-sea mineral...

Influence of nickel precursors on the properties and performance of Ni impregnated zeolite 5A and 13X catalysts in CO₂ methanation

Zeolite 13X and 5A supported Ni catalysts were synthesized for CO₂ methanation using the evaporation impregnation method. The influence of using different Ni precursors (nitrate, citrate, and acetate) as well as calcination temperatures on the catalyst properties and performance were investigated. XRD, SEM-EDX, TEM, STEM-EDX, N<sub...

Real estate implications of transitions in Dutch health care institutions

Due to structural changes in laws and regulations and ways of financing, Dutch health care organisations are in a phase of reorientation and transition. As such, many strategical issues have to be solved that will influence their corporate real estate strategy. In such a dynamic context real estate represents a high risk. The transition requires...

Renovation techniques for fatigue cracked orthotropic steel bridge decks

This dissertation presents the research into renovation techniques for orthotropic steel bridge decks. These techniques are needed to solve fatigue problems in the decks of these bridges, as several fatigue cracks have been detected in the deck structure of these bridges the last decade. A well-known example of fatigue cracks are those observed...