AlP-regulated phosphorus vacancies over Ni–P compounds promoting efficient and durable hydrogen generation in acidic media

Abstract

Engineering anion vacancy catalysts have exhibited speedy activity in the field of electrocatalysis due to their tunable electronic structure and moderate free energy of adsorbed intermediates. Herein, we have demonstrated...

Dual Promoting Effects of Hereditary Mn Doping and Oxygen Vacancies on Porous CuCo2O4 for Electrocatalytic Oxygen Generation

“…With rational analysis, the Mn element is versatile in this study and could not only serve as a pore former to improve the dynamic processes of 3a illustrates the copresence of Cu, Co, Mn, O, and C. Thereinto, C may be attributed to carbon pollution from atmospheric contact. 29 Especially, the peaks of Mn have again verified the speculation that there is dealloying residual Mn in nanoporous materials.…”

Dealloying‐Derived Porous Spinel Oxide for Bifunctional Oxygen Electrocatalysis and Rechargeable Zinc‐Air Batteries: Promotion of Activity Via Hereditary Al‐Doping

“…In the full survey spectrum (Figure 1b), the typical peaks of Ni, Co, Al, O, and C can be detected. Among them, C should be ascribed to the carbon pollution from air contacting [16] . In the high‐resolution Ni 2p spectrum (Figure 1c), two spin‐orbit doublets and two shakeup satellites are displayed.…”

“…Among them, C should be ascribed to the carbon pollution from air contacting. [16] In the high-resolution Ni 2p spectrum (Figure 1c), two spin-orbit doublets and two shakeup satellites are displayed. The peaks at binding energies of 852.2 and 872.5 eV represent Ni 2 + , while the fitting peaks at 855.4 and 874.0 eV are assigned to Ni 3 + , in good agreement with previous reports on NiCo 2 O 4 .…”

“…in which E * is the total energy of clean catalyst substrate, while E *OOH , E *O and E *OH are the total energies of adsorbed surfaces by OOH*, O*, and OH* species, respectively. Subsequently, the Gibbs free energy (ΔG) of each step can be obtained by Equation ( 16): [42] DG ¼ DE þ DE ZPE À TDS (16) where ΔE, ΔE ZPE , and ΔS represent the total energy difference of intermediates, zero-point energy correction, and entropy change of the reaction, respectively.…”

Nickel foam deposited with borophene sheets used as a self-supporting binder-free anode for lithium-ion batteries

“…Three pieces of 40 × 20 mm 2 NF strips were put into the center of a small corundum tube with a diameter of 30 mm and then put into the T 2 zone. To improve the quality of borophene, as-prepared NF strips in the T 2 zone were first annealed under an Ar atmosphere at 800 °C for 2 h. Three experimental conditions were set up in this study, including the temperatures of the T 1 zone (1000, 1040, 1080, and 1100 °C), the temperatures (500 and 600 °C) and deposition times (10,20,30,60, and 120 min) of T 2 zone. These experimental parameters were optimized, and the programming temperature curve is shown in Fig.…”