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Karsten Wittek

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Articles by Karsten Wittek

Recent progress in carbonaceous materials for the hydrogen cycle: Electrolytic water splitting, hydrogen storage and fuel cells

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By Ming Ding, Karsten Wittek, A.L. Ivanovskii, Tianming Man
| ScienceDirect Verified
Section snippets Graphene As displayed in Fig. 1, graphene can be prepared by both “top-down” and “bottom-up” approaches. As for “top-down” approaches, the mechanical stripping method was first proposed to gain graphene with high quality in 2004 [34]. However, it is time-consuming and hard to control the number of layers and size of graphene causing single layer graphene to be difficult to identify and separate from multiple layer graphene.
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New injector makes gas injection system for internal combustion engines more efficient

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By Karsten Wittek
| Dispatchist
Extensive series of tests were completed on the injection nozzle test bench and on the engine test bench.The concept was realized as a prototype and extensive series of tests were completed on the injection nozzle test bench and on the engine test bench.Credit: Karsten Wittek, HS Heilbronn Zero-emission hydrogen engines, like all internal combustion engines, require a mixture formation system, i.Karsten Wittek have developed a novel LP-DI system for gaseous fuels.
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