Results 131 to 140 of about 1,029,754 (340)

Performance of clinoptilolite zeolite after milling as a pretreatment on hydration kinetics, shrinkage, and alkali-silica reaction of cementitious materials

open access: yesCement, 2023
Natural clinoptilolite zeolite has been a popular supplementary cementitious material (SCM) due to its acceptable pozzolanic performance and the overall lower environmental footprint.
M. Shariful Islam, Benjamin J. Mohr
doaj  

THE ACTION OF SEA-WATER UPON HYDRAULIC CEMENTS. [PDF]

open access: green, 1897
Walter Michaelis, Walter F. Reid
openalex   +1 more source

The Cement Industry [PDF]

open access: yesScientific American, 1905
n ...
openaire   +1 more source

The Haber Bosch Catalyst from Solid state Chemistry to Mesotechnology

open access: yesAdvanced Energy Materials, EarlyView.
A comprehensive, multi‐scale, multi‐modal study of the structural diversity of a technical multi‐promoted Haber Bosch catalyst for ammonia synthesis is provided. The different contributions of ammonia Fe are revealed and the presence of cement phases that have yet not been incorporated into discussions on the function of this catalyst system is shown ...
Kassiogé Dembélé   +20 more
wiley   +1 more source

Selective Electrochemical Reduction of CO2 to Metal Oxalates in Nonaqueous Solutions Using Trace Metal Pb on Carbon Supports Enhanced by a Tailored Microenvironment

open access: yesAdvanced Energy Materials, EarlyView.
Encapsulating trace lead (Pb) in carbon electrodes with a fluoropolymer tailors the microenvironment for carbon dioxide (CO2) reduction. This enhances efficiency and selectivity, offering a tunable approach to guide reaction pathways and improve product outcomes in electrochemical CO2 conversion.
Rowan S. Brower   +13 more
wiley   +1 more source

Comparative Analysis of Hydrogen Production and Economic Feasibility: Direct versus Indirect Coupling of Photovoltaic Systems with Electrolyzers

open access: yesAdvanced Energy and Sustainability Research, EarlyView.
This article examines the efficiency and cost‐effectiveness of green hydrogen production strategies: direct and indirect, with and without battery. Results show that the indirect configuration with battery yields the highest hydrogen production and profitability. The study discusses technical, energetic, and economic trade‐offs, providing insights into
Alfonso González del Valle   +2 more
wiley   +1 more source

Catalytic Approaches for CO2 Conversion to Value‐Added Products: An Overview of Life Cycle Assessment Studies

open access: yesAdvanced Energy and Sustainability Research, EarlyView.
The catalytic conversion of CO2 into value‐added products provides an emerging strategy for reducing carbon emissions and improving environmental performance. This review compares different Life Cycle Assessment studies to evaluate the environmental impacts of CO2 conversion, focusing on the main challenges, technical limitations, and potential ...
Anastasia Pappa   +3 more
wiley   +1 more source

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