Abstract
Carbon nanotubes (CNTs) that are derived from coordination polymers (CPs) and which have controllable structures have served as a significant class of sorbents in renewable materials. However, it is difficult to achieve efficient conversion of CPs to small-diameter CNTs (SDCNTs) via chemical vapor deposition (CVD). As described herein, we first report the large-scale growth of SDCNTs from a Co-based CP. The oxygen atoms of trimesic acid (BTC) which surround the Co-based CP crystals impede the aggregation of Co nanocatalysts so that they effectively serve as a unique “sieve” which allows the catalyst to promote the formation of SDCNTs during the CVD process. CNTs with a diameter of ∼14 nm evolved from the pristine CP architecture. This strategy is novel and provides a new approach for the large-scale preparation of SDCNTs, and it that may facilitate the development of high performance and inexpensive sorbents as well as photocatalysts for water treatment.
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