Publication
Optimizing Mesostructured Silver Catalysts for Selective Carbon Dioxide Conversion into Fuels
Related publications (38)
Operando Observation of (Bi)carbonate Precipitation during Electrochemical CO2 Reduction in Strongly Acidic Electrolytes
Corsin Battaglia, Nukorn Plainpan, Alessandro Senocrate
Precipitation of (bi)carbonate salts during the electrochemical CO2 reduction (CO2RR) has been identified as a major cause of degradation and one of the main challenges to be overcome before implementing this technology on the industrial scale. Recently, t ...
Amer Chemical Soc2024In Situ Monitoring of the Surface Evolution of a Silver Electrode from Polycrystalline to Well-Defined Structures
Capturing the surface-structural dynamics of metal electrocatalysts under certain electrochemical environments is intriguingly desired for understanding the behavior of various metal-based electrocatalysts. However, in situ monitoring of the evolution of a ...
AMER CHEMICAL SOC2022Effect of alkali, aluminium and equilibration time on calcium-silicate-hydrates
Calcium silicate hydrate (C-S-H) is the main hydration product in Portland and blended cements, and greatly affects durability and mechanical properties of the hydrated cement. In the presence of Al-rich supplementary cementitious materials (SCMs), C-(A-)S ...
EPFL2022Effect of alkali hydroxide on calcium silicate hydrate (C-S-H)
Karen Scrivener, Barbara Lothenbach, Yu Yan, Émilie Michèle L'Hôpital, Sheng-Yu Yang
This paper investigates the effect of KOH and NaOH on C-S-H structure and solubility. Both KOH and NaOH have a similar effect, they increase pH values and silicon concentrations, and decrease calcium concentrations. At higher alkali hydroxide concentration ...
PERGAMON-ELSEVIER SCIENCE LTD2022Al uptake in calcium silicate hydrate and the effect of alkali hydroxide
Karen Scrivener, Barbara Lothenbach, Yan Yan
The effect of Al and of pH on the structure of calcium silicate hydrate (C-S-H), the most important hydration product in Portland and blended cement, was studied at Ca/Si similar to 1.0. The presence of Al led to higher amounts of secondary phases, larger ...
PERGAMON-ELSEVIER SCIENCE LTD2022The effect of sodium hydroxide on Al uptake by calcium silicate hydrates (C S H)
Christian Ludwig, Barbara Lothenbach, Sonya Barzgar, Mohamed Tarik, Alessio Di Giacomo
To reduce the CO2 emissions from cement production, Portland cement (PC) is partially replaced by supplementary cementitious materials (SCM). Reactions of SCM with PC during hydration leads to the formation of CSH with more silicon and aluminum than in PC, ...
2020Electrochemical Stability of the Reconstructed Fe3O4(001) Surface
Establishing the atomic-scale structure of metal-oxide surfaces during electrochemical reactions is a key step to modeling this important class of electrocatalysts. Here, we demonstrate that the characteristic (root 2x root 2)R45 degrees surface reconstruc ...
WILEY-V C H VERLAG GMBH2020Transforming Phosphogypsum Waste into Products with Market Value
Vast amounts of phosphogypsum (PG) which is a by-product of phosphorous acid production from apatite rock using sulphuric acid, are deposited in large piles at many locations worldwide. PG materials are added at rates of the order of megatonnes (Mt) per an ...
Paul Scherrer Institute, World Resources Forum2019