An experimental study has been conducted on the effectiveness of two types of flow-altering countermeasures placed around a cylindrical pier under clear water condition, which include sacrificial piles and submerged vanes. Their arrangements follow the optimal configurations recommended in the published articles with some modification. The temporal evolution of maximum scour depth and its equil...

Nickel-catalyzed cross-electrophile coupling (XEC) is an efficient method to form carbon-carbon bonds and has become important tool for building complex molecules. While XEC most often used stoichiometric metal reductants, these transformations can also be driven electrochemically. Electrochemical (eXEC) attractive because it increase the greenness of this potential resulted in numerous advance...

A low-cost bio-mass-derived carbon substrate has been employed to synthesize MoS₂@carbon composites through a hydrothermal method. Carbon fibers derived from natural cotton provide a three-dimensional and open framework for the uniform growth of MoS₂ nanosheets, thus hierarchically constructing coaxial architecture. The unique structure could synergistically benefit fast Li-ion and electron tra...

The effect of Mg addition on the microstructure and sacrificial anode protection performance a hot-dip Al-5Zn-4Si-xMg coating was studied by scanning electron microscopy (SEM-EDS), an X-ray diffractometer, electrochemical workstation. results showed that Al-Zn-Si alloy composed Al-rich phase Zn-rich phase. MgZn2 appears after addition. When increased to 0.15 wt.%, Mg2Si began appear in alloy. c...

In this study, the sacrificial anode cathodic protection system, which is one of electrical methods in prevention corrosion ships, was examined. Within scope potential effects current density, an important parameter for design, were studied. The study includes calculations a bulker with protected hull area 9406 m2 and general cargo ship 1770 m2. As result, it estimated that each 1 mA/m2 change ...

Aluminum and aluminum alloys can be protected against corrosion by various methods of surface modification (e.g., metal finishing, anodizing, chromate conversion coatings, metallic cladding with Alclad, corrosion protection compounds, and solution phase inhibitors). The desire to deploy environmentally compliant multi-functional coatings has created the need for new concepts that can protect Al...

Li-mediated electrochemical ammonia synthesis (LiMEAS), a potential alternative to conventional thermochemical synthesis, is enabled by non-aqueous electrolytes with precisely controlled proton activity. However, the effects of generating anode reactions, such as hydrogen or electrolyte oxidation, unknown but crucially important for enabling steady-state LiMEAS without need sacrificial sources....