| http://www.w3.org/ns/prov#value | - For example, silica and non-conductive carbon, titania and non-conductive carbon, etc. sol-gel titanates, mixed titanates, ion exchange resins, lithium-containing ceramics, hollow glass microspheres, carbon-based materials such as carbon, activated charcoal, carbon black, furnace black, ketchem black, diamond powder, and elastomers, such as polybutadiene, polysiloxane, and semi-metals, ceramic fil
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