Simulation of Secondary Ion Position on the Detector for Three-dimensional Shave-off Method

Abstract

The concept of three-dimensional (3D) shave-off secondary ion mass spectrometry (SIMS) is that enables to obtain the depth information of the sample simultaneously with the mass information using the vertical axis of a two-dimensional position-sensitive detector in the mass analyzer. In this study, we simulated the trajectory of secondary ions sputtered from a virtual sample in the 3D shave-off SIMS system and investigated the magnification ratio of the ions. The simulation results showed that we could distinguish the depth position of the secondary ions sputtered from a sample by the detected position in our concept of 3D shave-off SIMS.

3D Printed Microlattices of Transition Metal/Metal Oxides for Highly Stable and Efficient Water Splitting

“…For additional context, we highlight that this result is even lower than that observed for the benchmark RuO 2 (1.42 V vs RHE at 10 mA cm −2 ) and lower than the overpotential of leading PGM‐free electrocatalysts. [ 39–42 ] This finding that both HER and OER electrocatalyst performance can be enhanced via 3D microlattice integration reveals the advantage of these architectures in producing a greater number of active sites and reducing the resistance at the interface between the electrolyte and electrode. This superiority can be attributed to the synergistic effect of a directional 3D structure and reduction of cobalt oxide to cobalt and cobalt oxide interfaces, which facilitates the diffusion of electrolytes and improves the kinetics for OER activity.…”

CoS2/MoS2 Hollow Heterostructure as High‐efficiency Bifunctional Electrocatalyst for Overall Water Splitting

“…[4][5][6] At present, hydrogen production still relies on fossil fuels, and the hydrogen produced by steam methane reforming and coal gasification is usually called "gray hydrogen". [7][8][9] In contrast, electrolysis of water using lowvoltage electricity that comes from solar or wind energy could produce "green hydrogen" from water. [10][11][12] Nevertheless, due to the large overpotential for electrolysis of water, H 2 derived from splitting of water is expensive.…”

“…However, the hydrogen society is still very far away, and one of the main obstacles is the preparation of hydrogen [4–6] . At present, hydrogen production still relies on fossil fuels, and the hydrogen produced by steam methane reforming and coal gasification is usually called “gray hydrogen” [7–9] . In contrast, electrolysis of water using low‐voltage electricity that comes from solar or wind energy could produce “green hydrogen” from water [10–12] .…”