- document
-
Zheng, Yi (author)Silicon heterojunction (SHJ) solar cell technology is one of the most promising PV technologies because of its high power conversion efficiencies, simple fabrication process and low manufacturing cost. The current world record efficiency of SHJ solar cell reaches up to 26.81%. SHJ solar cell produces the highest VOC over 750 mV among the c-Si...master thesis 2023
- document
-
Hebbar, Akshatha (author), Debraj, Devangshi (author), Acharya, Sriprasad (author), Puttapati, Sampath Kumar (author), Vatti, Anoop Kishore (author), Dey, P. (author)Deep eutectic solvents (DESs) are industrially promising solvents and posses numerous applications in wide areas such as metal processing, synthesis media, synthesis of nanoparticles, gas sequestration and many more. In this work, we synthesized and investigated the performance of three deep eutectic solvents (DESs) i.e., reline, glyceline...journal article 2023
- document
-
Ma, L. (author), Varveri, Aikaterini (author), Jing, R. (author), Erkens, S. (author)The chemical characterization of bitumen type and ageing state are fundamental in determining structural and mechanical properties of bitumen. This work aims to classify various bitumen types at different ageing states and to identify the primary chemical differences relevant to the classification. Fourier transform infrared (FTIR) spectral...journal article 2023
- document
-
Bahadur, Jitendra (author), Chandra, D. (author), Das, Avik (author), Vishal, Vikram (author), Agrawal, Ashish Kumar (author), Sen, Debasis (author)Pore orientation in shale governs the fluid transport properties that are key to hydrocarbon production and potential CO<sub>2</sub> sequestration. The present work deals with the detailed study of nano-heterogeneities in shales, across the bedding plane, of varying thermal maturity and total organic carbon content using scanning small-angle...journal article 2023
- document
-
Glaser, Niels (author)Dry adhesives can reattach to surfaces due to the reversible bond made by Van der Waals forces. These adhesives can therefore be used as gripping surface that has a high frictional load capacity, independent of the grasping force. In many grippers, the adhesive surface is often pressed into contact with another surface (’substrate’) in an open...master thesis 2022
- document
-
Dehaine, Quentin (author), Tijsseling, Laurens T. (author), Rollinson, Gavyn K. (author), Buxton, M.W.N. (author), Glass, Hylke J. (author)Cobalt (Co) mine production primarily originates from the sediment‐hosted copper (Cu) deposits of the Democratic Republic of Congo (DRC). These deposits usually consist of three ore zones with a supergene oxide ore blanket overlying a transition zone which grades into a sulphide zone at depth. Each of these zones display a mineral assemblage...journal article 2022
- document
-
Wang, Sheng (author), Huang, Weidong (author), Liu, X. (author), Lin, P. (author)The influence of sulfur on the chemical, rheological, and aging resistance of terminal blend rubberized bitumen (TBRB) was studied. TB hybrid bitumen (TBHB) was prepared from with different sulfur contents (0.1, 0.2, 0.3, 0.4 wt%) and TBRB prepared with neat bitumen and crumb rubbers at 20% content. TBHB binders were aged by rolling thin film...journal article 2022
- document
-
Wang, Sheng (author), Huang, Weidong (author), Liu, X. (author), Lin, P. (author)Asphalt pavements are prone to aging in construction and during service, which can affect the properties of the asphalt. The aging behaviors of high content crumb rubber modified asphalt (HCRMA) were investigated in this paper. The binders were aged in the laboratory and the performances before and after aging were tested using the attenuated...journal article 2022
- document
-
Polat, S. (author), Eral, H.B. (author)The struvite crystals constitute one of the common types of urinary stones. Such stones are also referred as “infection stones” due to their tendency to cause infections in urinary tract. A considerable effort has been placed to identify natural or synthetic crystal-growth modifiers for this kind of urinary stone in literature, yet...journal article 2022
- document
-
Wang, Sheng (author), Huang, Weidong (author), Liu, X. (author), Lin, P. (author), Ren, S. (author), Li, Yi (author)High content rubber modified bitumen (HCRMB) prepared from the high content of waste tire rubber and bitumen has good performance while allowing greater use of the waste tires. However, HCRMB is subject to aging during use, which can affect its performance. The purpose of this paper was to investigate the effect of high content of waste tire...journal article 2022
- document
-
Zhao, Y. (author), Procel Moya, P.A. (author), Smets, A.H.M. (author), Mazzarella, L. (author), Han, C. (author), Yang, G. (author), Cao, L. (author), Yao, Z. (author), Weeber, A.W. (author), Zeman, M. (author), Isabella, O. (author)Excellent surface passivation induced by (i)a-Si:H is critical to achieve high-efficiency silicon heterojunction (SHJ) solar cells. This is key for conventional single-junction cell applications but also for bottom cell application in tandem devices. In this study, we investigated the effects of (i)a-Si:H deposition temperature on passivation...journal article 2022
- document
-
Porot, Laurent (author), Mouillet, Virginie (author), Margaritis, Alexandros (author), Haghshena, Hamzeh (author), Elwardany, Michael (author), Apostolidis, P. (author)InfraRed spectrometry is a powerful technique to characterise bituminous binders. The methodology is not fully harmonised and may lead to vari-ability. The RILEM-272-PIM-TG1, evaluated seven complex bituminous, for which eleven laboratories performed FTIR. While, the spectra showed sim-ilar trends, further analysis was needed to improve...journal article 2022
- document
-
Pipintakos, Georgios (author), Lommaert, Caitlin (author), Varveri, Aikaterini (author), Van den bergh, Wim (author)The ageing of bitumen has received great attention both from a chemical and rheological perspective due to its direct impact on asphalt performance. However, open questions with respect to the convergence of the synchronous ageing changes in rheology and chemistry of bitumen still exist. This paper addresses these alterations of chemistry and...journal article 2022
- document
-
Moazzami, M. (author), Ayatollahi, M. R. (author), Akhavan-Safar, A. (author), Teixeira De Freitas, S. (author), Poulis, J.A. (author), da Silva, L. F.M. (author)In some industrial applications, adhesive joints are cyclically exposed to a moist environment, where cyclic moisture absorption and desorption can significantly alter the fracture energy of the bonded joints. Most previous studies are based on monotonic aging conditions, while the performance of bonded joints under cyclic aging is not well...journal article 2022
- document
-
van Lottum, Anouk (author)Trivalent chromium (Cr(III)) is one of the most promising non-toxic replacements for hexavalent chromium (Cr(VI)) coatings in the steel packaging industry. The application of a chromium layer to packaging steel is essential for providing a protective layer on the steel packaging’s external surface area, which prevents corrosion during its use....master thesis 2021
- document
-
Pipintakos, Georgios (author), Soenen, Hilde (author), Ching, H. Y.Vincent (author), Velde, Christophe Vande (author), Doorslaer, Sabine Van (author), Lemière, Filip (author), Varveri, Aikaterini (author), Van den bergh, Wim (author)Understanding the fundamental mechanisms of oxidative ageing in bitumen is considered of paramount importance in order to take steps towards durable binders able to tackle distresses related to this phenomenon which deteriorates the asphalt performance. This paper focuses on the identification of the intermediate and final oxygenated products...journal article 2021
- document
-
Kundarapu, Laxman Kumar (author), Choudhury, Satyajeet (author), Acharya, Sriprasad (author), Vatti, Anoop Kishore (author), Pandiyan, Sudharsan (author), Gadag, Shivaprasad (author), Nayak, Usha Yogendra (author), Dey, P. (author)The aggregation behavior of asphaltene in the toluene-hexane mixture is systematically investigated using experimental techniques such as optical microscopy and Fourier-transform infrared spectroscopy (FTIR) combined with molecular dynamics (MD) simulations. The optical images of various asphaltene concentrations are processed to determine...journal article 2021
- document
-
Pipintakos, Georgios (author), Ching, H. Y.Vincent (author), Mühlich, Uwe (author), Soenen, Hilde (author), Van Doorslaer, Sabine (author), Sjövall, Peter (author), Varveri, Aikaterini (author), Vande Velde, Christophe (author), Lu, Xiaohu (author)Oxidative ageing in bituminous materials is considered to be one of the most important factors for distress types in road applications. The increasing interest in oxidative ageing has highlighted the need for a thorough understanding of the oxidation mechanisms at molecular level. This paper offers some insight in the validity of the proposed...book chapter 2021
- document
-
Firet, N.J. (author)Fossil resources are being depleted, while the concentration of CO2 in the atmosphere rises. There clearly is a strong and immediate need for a radical energy transition. Renewable energy is growing strongly as supplier of fossil-free electricity, but it needs large-scale and long-term storage options in order to be able to make a real impact on...doctoral thesis 2020
- document
-
Fockaert, L.I. (author), Pletincx, S. (author), Ganzinga-Jurg, D. (author), Boelen, B. (author), Hauffman, T. (author), Terryn, H.A. (author), Mol, J.M.C. (author)In this work, in-situ ATR-FTIR in the Kretschmann configuration is proposed as an interfacial sensitive technique able to probe molecular processes at the buried interface of an industrial relevant polyester primer. Zinc, aluminium and magnesium oxide were used to represent oxides present at galvanized steel sheets used in coil coating. Two...journal article 2020