Authors:Ágnes Szegedi, Margarita Popova, and Károly Lázár
Nitrogen physisorption measurements were carried out at 77 K using Quantachrome NOVA Automated Gas Sorption Instrument. The pore-sizedistributions were calculated from the desorption isotherms with the BJH method.
Authors:Yue Yao, Jianhong Wang, Yanyan Deng, and Jun Wang
N 2 adsorption–desorption isotherm, poresizedistribution and pore volume
Fig. 3a presents the N 2 adsorption–desorption isotherms for the three catalysts. It can be seen that the steep rise started from P/P 0 = 0 and the
Authors:L. E. Muresan, E.-J. Popovici, E. Bica, A. I. Cadis, I. Perhaita, and L. Barbu Tudoran
adsorption and desorption techniques. The pore-sizedistributions of precursors and phosphors are compared in Fig. 4 . It is obvious that, the thermal treatment leads to a significant increase of pore diameter together with decrease of their volume. Powder
Authors:Jiří Kučerík, Petra Bursáková, Alena Průšová, Lucie Grebíková, and Gabriele Ellen Schaumann
drying and wetting cycles, hydration time, and the type of water binding [ 10 ]. The quality of studied organic material and its poresizedistribution plays a significant role in hydration kinetics as well [ 12 ]. After the absorption of water, size of
. However, one shortcoming has not been solved perfectly, that is relatively low early strength of blended cements [ 2 ].
It is generally accepted that the properties of hardened cement paste are closely related to its porosity and poresize
Authors:K. Bachari, R. M. Guerroudj, and M. Lamouchi
volumetric adsorption analyzer at −196 °C. A sample was degassed in vacuum at 300 °C for 12 h before measurement. The surface area was calculated based on the BET (Brunner–Emmett–Teller) method, while poresizedistribution was computed using the BJH (Barrett
Authors:Hailiang Yin, Tongna Zhou, Yunqi Liu, Yongming Chai, and Chenguang Liu
electron dispersive x-ray spectroscopy (EDS). Specific BET surface area and poresizedistribution were determined with a Micromeritics TriStar 3000 model by nitrogen adsorption at 77 K. Samples were degassed under flowing Ar at 573 K for 5 h before N 2