NMR

Understanding Carbon-13 Isotope in Three Minutes

by
Understanding Carbon-13 Isotope in Three Minutes

Carbon is the core element that constitutes life and organic matter. Its isotopic composition, especially the ratio of stable isotopes C¹² and C¹³, contains rich information about physical, chemical, and biological processes. Unlike radioactive isotopes C¹⁴, C¹³ poses no radiation hazard, allowing for safe use in in vivo studies and long-term experiments. Below is a … Read more

Atomic-Level Structure of Cementitious Calcium Aluminate Silicate Hydrate

by
Atomic-Level Structure of Cementitious Calcium Aluminate Silicate Hydrate

Academic Paper Sharing The Atomic-Level Structure of Cementitious Calcium Aluminate Silicate Hydrate DOI：10.1021/jacs.0c02988 Summary / Abstract Despite the extensive use of aluminum-rich blended cements for over 30 years, the structural nature of aluminum in the primary hydration product, calcium aluminate silicate hydrate (C-A-S-H), remains unclear. Through first-principles calculations, we predict that aluminum will incorporate into … Read more