The Apparent Activation Energy of a Novel Low-Calcium Silicate Hydraulic Binder. [PDF]
Materials (Basel), 2021 In this work, the apparent activation energy (Ea) of a novel low-calcium binder was, for the first time, experimentally determined, using a calorimetric approach. Additionally, a correlation between the Ea, measured at the acceleration period with the C/S ratio of the hydration product is proposed.
Antunes M +5 more
europepmc +4 more sources
On Apparent Activation Energy of Structure Sensitive Heterogeneous Catalytic Reactions [PDF]
Catalysis Letters, 2019 The notion of apparent activation energy is discussed in relation to structure sensitivity of complex heterogeneous catalytic reactions comprising several steps. The cases of nonuniform surfaces (intrinsic and induced) are considered, showing that the apparent activation energy depends on the cluster size and surface coverage.
Dmitry Yu Murzin
exaly +2 more sources
Evaluation of Strength Development in Concrete with Ground Granulated Blast Furnace Slag Using Apparent Activation Energy. [PDF]
Materials (Basel), 2020 Yang HM +5 more
europepmc +2 more sources
Analysis and theory of gas transport in microporous sol-gel derived ceramic membranes [PDF]
, 1995 Sol-gel modification of mesoporous alumina membranes is a very successful technique to improve gas separation performance. Due to the formed microporous top layer, the membranes show activated transport and molecular sieve-like separation factors.
Burggraaf, A.J. +4 more
core +7 more sources
In situ surface coverage analysis of RuO2-catalysed HCl oxidation reveals the entropic origin of compensation in heterogeneous catalysis [PDF]
, 2012 In heterogeneous catalysis, rates with Arrhenius-like temperature dependence are ubiquitous. Compensation phenomena, which arise from the linear correlation between the apparent activation energy and the logarithm of the apparent pre-exponential factor ...
Farra, R. +10 more
core +2 more sources
Using Apparent Activation Energy as a Reactivity Criterion for Biomass Pyrolysis [PDF]
Energy & Fuels, 2016 The reactivity of chemically isolated lignocellulosic blocks, namely, α-cellulose, holocellulose, and lignin, has been rationalized on the basis of the dependence of the effective activation energy (Eα) upon conversion (α) determined via the popular isoconversional kinetic analysis, Friedman’s method.
Carrier, Marion +3 more
openaire +3 more sources
Interpretation of the apparent activation energy of glass transition
Journal of Physics Communications, 2021 Abstract The temperature dependence of the viscosity of glass is a major concern in glass research. The apparent activation energies obtained from Arrhenius plots often show unusual values larger than bond energies, which makes the interpretation of the activation energy difficult.
openaire +2 more sources
On the Apparent Activation Energy for Clustering in Dilute Al-Zn Alloys [PDF]
, 1978 The clustering phenomenon was observed when dilute Al-Zn alloys were annealed at temperatures higher than the solvus of the G.P.zones. In this report the apparent activation energy for clustering is estimated and compared with the experimental results ...
Kobayashi, Toshinori +2 more
core +1 more source
Apparent activation energy during surface evolution by step formation and flow [PDF]
, 2006 During growth and etching by step flow as examples of anisotropic surface processing the apparent activation energy of the growth/etch rate depends on orientation, increasing gradually as a principal, terrace-rich surface is approached. This behaviour is
Cheng, D. +3 more
core +2 more sources
Effect of amylose content on estimated kinetic parameters for a starch viscosity model. [PDF]
, 2013 The apparent viscosity profile of starches during gelatinization varies with different amylose content. This study focused on the influence of amylose content on the kinetic parameters of a starch viscosity model for corn starches.
Dolan, Kirk D., Sulaiman, Rabiha
core +1 more source