A researcher who studied direct production of carbon nanotube fibers by chemical vapor deposition. In this process, growing nanotubes collect into an aerogel that can be drawn continuously into a fiber. The study examined how trace sulfur and the timing of carbon availability affect nanotube structure and fiber properties, showing why chemical process control matters to a macroscopic material.[ref]
Spinning of carbon nanotube fibres using the floating catalyst high temperature route: purity issues and the critical role of sulphur by T. S. Gspann and others. Abstract: integrated growth and spinning, sulfur control and single-wall nanotubes
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