Li Li

Some Results on Spectra and Energy of Edge-Connectivity Matrices of Graphs

The spectrum of a matrix refers to the multiset of its eigenvalues, and its spectral radius refers to the maximum absolute value of its eigenvalues. The energy of a matrix is defined as the sum of the absolute values of all its eigenvalues. For a connected graph [Formula: see tex...

Atomic Scale Origin of the OER Activity–Stability Trade-Off in NiFe Layered Double Hydroxides: Lattice-Site Oxygen Triggers Fe Leaching

Abstract NiFe layered double hydroxide (NiFe-LDH) is a representative non-precious-metal catalyst for the alkaline oxygen evolution reaction (OER), yet its long-term stability is compromised by Fe leaching under OER conditions. Herein, using density functional theory calculations...