Browsing by Author "Al-Muhtaseb, Shaheen"
Now showing items 1-20 of 34
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A rapid method for low temperature microencapsulation of phase change materials (Pcms) using a coiled tube ultraviolet reactor
Ansari, Jawaad A.; Al-Shannaq, Refat; Kurdi, Jamal; Al-Muhtaseb, Shaheen A.; Ikutegbe, Charles A.; Farid, Mohammed M.... more authors ... less authors ( MDPI , 2021 , Article)Microencapsulation of phase change materials (PCMs) remain a suitable option within building materials, as they contribute to the thermal mass and provide an energy buffer, an added benefit. This paper presents a novel ... -
A review on the solid-liquid-vapor phase equilibria of acid gases in methane
Ababneh, Hani; Al-Muhtaseb, Shaheen A. ( John Wiley and Sons Inc , 2022 , Article Review)In spite of the increasing levels of greenhouse gases in the atmosphere, and their impact on the environment, the demand for natural/biogas will increase significantly in the coming few decades. To cover this demand, the ... -
Adsorption and desorption equilibria of nitrogen, methane, ethane, and ethylene on date-pit activated carbon
Al-Muhtaseb, Shaheen A. ( American Chemical Society , 2010 , Article)Date pits were used to produce a highly porous activated carbon. The resulting date-pit activated carbon was used in a volumetric adsorption apparatus to measure the vapor-phase adsorption and desorption of nitrogen, ... -
Adsorption energy and pore-size distributions of activated carbons calculated using Hill's model
Ben Torkia, Yosra; Bouaziz, Nadia; Al-Muhtaseb, Shaheen A.; Ben Lamine, Abdelmottaleb ( Multi-Science Publishing Co. Ltd , 2014 , Article)An integral equation derived using a statistical physics treatment by considering the adsorption energy distribution (AED) was used to model the adsorption of ethylene and ethane on resorcinol-formaldehyde-based activated ... -
Adsorption of Carbon Dioxide, Methane, and Nitrogen Gases onto ZIF Compounds with Zinc, Cobalt, and Zinc/Cobalt Metal Centers
Awadallah, Ahmed; Hillman, Febrian; Al-Muhtaseb, Shaheen A.; Jeong, Hae-Kwon ( Hindawi Limited , 2019 , Article)ZIF-8, Co-ZIF-8, and Zn/Co-ZIF-8 are utilized in adsorbing nitrogen (N2), methane (CH4), and carbon dioxide (CO2) gases at temperatures between 25 and 55 C and pressures up to 1 MPa. Equilibrium adsorption isotherms and ... -
Advances in Tailoring Resorcinol-Formaldehyde Organic and Carbon Gels
ElKhatat, Ahmed M.; Al-Muhtaseb, Shaheen A. ( WILEY-VCH Verlag , 2011 , Article)An overview on the preparation and properties of resorcinol-formaldehyde (RF) organic and carbon gels reveals the fascinating and remarkably flexible properties of RF carbon and organic gels and how these properties are ... -
An empirical correlation-based model to predict solid-fluid phase equilibria and phase separation of the ternary system CH4-CO2-H2S
Ababneh, Hani; Al-Muhtaseb, Shaheen A. ( Elsevier , 2021 , Article)To cover the expected increased demand for natural gas, energy industry has to exploit sour gas reserves located around the world. However, acid gases have to be removed before the natural gas produced from these fields ... -
Carbon dioxide sequestration and methane removal from exhaust gases using resorcinol-formaldehyde activated carbon xerogel
Awadallah-F, Ahmed; Al-Muhtaseb, Shaheen A. ( Springer , 2013 , Article)The world is faced with intrinsic environmental issues. Among these issues, the minimization of greenhouse gas emission to acceptable levels presents a high priority. This study seeks to help to reduce the greenhouse effect ... -
Collective osmotic shock in ordered materials
Zavala-Rivera, Paul; Channon, Kevin; Nguyen, Vincent; Sivaniah, Easan; Kabra, Dinesh; Friend, Richard H.; Nataraj, S. K.; Al-Muhtaseb, Shaheen A.; Hexemer, Alexander; Calvo, Mauricio E.; Miguez, Hernan... more authors ... less authors ( Nature Publishing Group , 2012 , Article)Osmotic shock in a vesicle or cell is the stress build-up and subsequent rupture of the phospholipid membrane that occurs when a relatively high concentration of salt is unable to cross the membrane and instead an inflow ... -
Controlled thermal oxidative crosslinking of polymers of intrinsic microporosity towards tunable molecular sieve membranes
Song, Qilei; Cao, Shuai; Pritchard, Robyn H.; Ghalei, Behnam; Al-Muhtaseb, Shaheen A.; Terentjev, Eugene M.; Cheetham, Anthony K.; Sivaniah, Easan... more authors ... less authors ( Nature Publishing Group , 2014 , Article)Organic open frameworks with well-defined micropore (pore dimensions below 2 nm) structure are attractive next-generation materials for gas sorption, storage, catalysis and molecular level separations. Polymers of intrinsic ... -
Degradation analysis in mixed (MAPbI3 and MAPbBr3) perovskite solar cells under thermal stress
Ahmad, Zubair; Shikoh , Ali Sehpar; Paek , Sanghyun; Nazeeruddin , M. K.; Al-Muhtaseb, Shaheen A.; Touati, Farid; Bhadra , J.; Al-Thani, Noora J.... more authors ... less authors ( Springer New York LLC , 2019 , Article)The current study provides an insight into the thermal stability of perovskite solar cells (PSCs) and the factors causing their degradation. To this end, a systematic stability study was carried out on n-i-p type perovskite ... -
Dopant-free hole-transporting materials for stable and efficient perovskite solar cells
Paek, Sanghyun; Qin, Peng; Lee, Yonghui; Cho, Kyung Taek; Gao, Peng; Grancini, Giulia; Oveisi, Emad; Gratia, Paul; Rakstys, Kasparas; Al-Muhtaseb, Shaheen A.; Ludwig, Christian; Ko, Jaejung; Nazeeruddin, Mohammad Khaja... more authors ... less authors ( Wiley-VCH Verlag , 2017 , Article)Molecularly engineered novel dopant-free hole-transporting materials for perovskite solar cells (PSCs) combined with mixed-perovskite (FAPbI3)0.85(MAPbBr3)0.15 (MA: CH3NH3+, FA: NH=CHNH3+) that exhibit an excellent power ... -
Efficacy of using slurry of metal-coated microencapsulated PCM for cooling in a micro-channel heat exchanger
Roberts, Nathan S.; Al-Shannaq, Refat; Kurdi, Jamal; Al-Muhtaseb, Shaheen A.; Farid, Mohammed M. ( Elsevier , 2017 , Article)This paper provides a method of heat transfer enhancement using microencapsulated phase change material (MPCM) slurries, utilizing the latent heat of PCM during melting. The values of heat transfer coefficient obtained for ... -
Energetic investigation of the adsorption process of CH4, C 2H6 and N2 on activated carbon: Numerical and statistical physics treatment
Ben Torkia, Yosra; Ben Yahia, Manel; Khalfaoui, Mohamed; Al-Muhtaseb, Shaheen A.; Ben Lamine, Abdelmottaleb ( Elsevier , 2014 , Article)The adsorption energy distribution (AED) function of a commercial activated carbon (BDH-activated carbon) was investigated. For this purpose, the integral equation is derived by using a purely analytical statistical physics ... -
Growth of MAPbBr3 perovskite crystals and its interfacial properties with Al and Ag contacts for perovskite solar cells
Najeeb, Mansoor Ani; Ahmad, Zubair; Shakoor, R.A.; Alashraf, Abdulla; Bhadra, Jolly; Al-Thani, N.J.; Al-Muhtaseb, Shaheen A.; Mohamed, A.M.A.... more authors ... less authors ( Elsevier B.V. , 2017 , Article)In this work, the MAPbBr3 perovskite crystals were grown and the interfacial properties of the poly-crystalline MAPbBr3 with Aluminum (Al) and Silver (Ag) contacts has been investigated. MAPbBr3 crystals are turned into ... -
Impact of synthesis conditions on meso- and macropore structures of resorcinol-formaldehyde xerogels
Awadallah-F, Ahmed; Elkhatat, Ahmed M.; Al-Muhtaseb, Shaheen A. ( Springer , 2011 , Article)Xerogels were prepared by the sol-gel polymerization of resorcinol with formaldehyde at different conditions. The effects of different synthesis factors (namely, resorcinol-to-formaldehyde ratio, resorcinol-to-water ratio, ... -
Influence of carbon uniformity on its characteristics and adsorption capacities of CO2 and CH4 gases
Awadallah-F, Ahmed; Al-Muhtaseb, Shaheen A. ( MDPI AG , 2021 , Article)Activated carbons of resorcinol-formaldehyde aerogels (AC-RFA) were prepared and mixed with multiwall carbon nanotubes (MWCNTs) with various ratios. Samples were characterized by different techniques. The novelty of the ... -
Influence of micro-and mesoporosity of resorcinol-formaldehyde xerogels on adsorption
Awadallah-F, Ahmed; Al-Muhtaseb, Shaheen A. ( Mary Ann Liebert , 2013 , Article)Effects of micro-and mesoporosity of resorcinol-formaldehyde xerogels (RFXs) on the adsorptive properties of crystal violet (CV) were investigated. RFXs were synthesized at different pH values, and corresponding pore ... -
Instability in CH3NH3PbI3 perovskite solar cells due to elemental migration and chemical composition changes
Ahmad, Zubair; Najeeb, Mansoor Ani; Shakoor, R. A.; Alashraf, Abdulla; Al-Muhtaseb, Shaheen A.; Soliman, Ahmed; Nazeeruddin, M. K.... more authors ... less authors ( Nature Publishing Group , 2017 , Article)Organic-inorganic halide perovskites have rapidly grown as favorable materials for photovoltaic applications, but accomplishing long-term stability is still a major research problem. This work demonstrates a new insight ... -
Membranes for CO2 Separation
Alkhouzaam, Abedalkhader; Khraisheh, Majeda; Atilhan, Mert; Al-Muhtaseb, Shaheen A.; Zaidi, Syed Javaid ( wiley , 2016 , Book chapter)Membranes are becoming popular for CO2 separation as an environmentally friendly, efficient technology. A comprehensive review of recent studies conducted on CO2 separation from different sources is essential for tracking ...