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Energy

17 available technologies

System for Stabilizing Phase of a Picosecond Laser Sysem to an RF Accelerator

The invention relates to an improved method and system for synchronizing signals in a particle accelerator system. In one embodiment, a method and system is disclosed whereby a phase of laser pulses are monitored, and a high-frequency signal is adjusted as necessary to be substantially in-phase with the laser pulses. In another embodiment, a method and system is disclosed whereby a phase of an electromagnetic field in an electron gun is monitored, and a high-frequency signal is adjusted as necessary to be substantially in-phase with the electromagnetic field.

Nanostructured Molybdenum (IV) disulfide (MoS2) Electrodes

The most common counter electrode materials used for in Quantum dot sensitized solar cells (QDSSCs) quickly become poisoned by sulfide, resulting in significant current drops, which lowers solar cell efficiencies and makes them unsuitable for long-term use in a device. Also, some of these materials are rare and expensive, so replacing them with an inexpensive, earth-abundant material is a desirable goal. This invention uses a Mo foil to produce the desired uniform growth of Molybdenum (IV) disulfide (MoS2) petals from the Mo foil, making the foil both the source of Mo as well as the substrate. This petaled MoS2 electrode shows a vastly improved polysulfide reduction compared to Glassy Carbon, ordinary Mo foil, Pt and Au. The petaled MoS2 electrode lost only 0.63% of its initial current density at -1 V whereas Pt lost 13.58% after only five scans, indicating the petaled MoS2 films are highly stable as cathodes. The technology was tested in a solar device setting, using standard photoanodes to test the efficiency of a device employing petaled MoS2 as its cathode. Devices in which a petaled MoS2 cathode was used achieved nearly fivefold improvement in efficiency over those employing a Pt cathode.

Ordered Mesoporous Silica- Metal Organic Composite Adsorbent

Vanderbilt researchers have developed a novel biphasic adsorbent material that is useful for the removal of contaminant molecules, including toxic light gases, from gases and liquids. This revolutionary material provides enhanced adsorption capacity and stability for a broad range of chemicals compared to conventional commercial and research grade adsorbent materials.

Dispersed Detonation Nanodiamond Composites

Researchers at Vanderbilt University have developed a revolutionary method for incorporating nanodiamond particles into an existing polymer matrix. The resulting composite materials have greatly enhanced mechanical and chemical properties that can be tailored during this process.

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