Potential production of carbon nanotubes from liquid aromatic hydrocarbons over Fe and Ni on alumina powder via catalytic chemical vapor deposition

San, Myat Thiri; Prachakittikul, Pensiri; Chainarong, Kanjanaphon; Sripisarn, Tanaporn; Kerdnawee, Konrat; Suttiponparnit, Komkrit; Charinpanitkul, Tawatchai; Koo‐Amornpattana, Wanida; Srifa, Atthapon; Ratchahat, Sakhon; Chaiwat, Weerawut

doi:10.1016/j.diamond.2023.110130

Cited by 2 publications

(1 citation statement)

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“…According to the formation of CNTs, several renewable carbon sources, particularly bioethanol, have been investigated as alternative carbon sources, replacing petroleum-derived hydrocarbons. 47 However, CNT growth from bioethanol at high temperatures often suffers from cracking, aromatization, and dehydrogenation, 48 eventually leading to the production of carbon fiber (Figure S8) and byproducts, namely acetaldehyde, methane, ethane, and ethyl benzene (Table S6). These factors hinder the production of highly qualified CNTs.…”

Section: Synthesis and Characterization Of The Fe Single Sitesmentioning

confidence: 99%

Rational Design of Fe Single Sites Supported on Hierarchical Zeolites via Atomic Layer Deposition for Few-Walled Carbon Nanotube Production

Chaipornchalerm,

Nunthakitgoson,

Mano

et al. 2024

ACS Appl. Mater. Interfaces

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Metal single-site catalysts have recently played an essential role in catalysis due to their enhanced activity, selectivity, and precise reaction control compared to those of conventional metal cluster catalysts. However, the rational design and catalytic application of metal single-site catalysts are still in the early stages of development. In this contribution, we report the rational design of Fe single sites incorporated in a hierarchical ZSM-5 via atomic layer deposition (ALD). The designer catalysts demonstrated highly dispersed Fe species, predominantly stabilized by oxygen atoms in the zeolite framework at terminal, isolated, and vicinal silanol groups within the micropores and external surfaces of the zeolite. The successful incorporation of highly thermally stable and uniform Fe single sites into hierarchical zeolite through ALD represents a significant advancement in few-walled carbon nanotube production. The inner and outer diameters of produced CNTs are approximately 4.4 ± 2.4 and 8.6 ± 1.8 nm, respectively, notably smaller than those produced via traditional impregnated catalysts. This example emphasizes the concept of rational design of a single Fe site dispersed on a hierarchical ZSM-5 surface, which is anticipated to be a promising catalyst for advancing catalytic applications.

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Section: Synthesis and Characterization Of The Fe Single Sitesmentioning

confidence: 99%