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- Title
Towards the Efficient Catalytic Valorization of Chitin to N -Acylethanolamine over Ni/CeO 2 Catalyst: Exploring the Shape-Selective Reactivity.
- Authors
Zheng, Yifan; Lu, Lijun; Chen, Wei; Zheng, Anmin; Lei, Aiwen; Dutta Chowdhury, Abhishek
- Abstract
Global warming and rising waste content collectively accelerate the development of renewable-derived 'low-carbon' chemical technologies. Among all abundant renewables, marine-/food-waste-derived chitin, the only nitrogen-containing sustainable biomass, contains the unique N-acetylglucosamine units, which could be synthetically manipulated to a plethora of organonitrogen chemicals. Herein, we report the efficient one-step catalytic valorization of chitin to N-acylethanolamine over cost-effective Ni/CeO2-based materials, which interestingly demonstrate shape-based reactivity based on CeO2 supports. In general, all three catalysts (Ni on cubic-, rod-, and polyhedral-shaped CeO2 supports) were active for this reaction, but they differed in their catalytic efficiency and time-monitored reaction profiles. Herein, Ni on cubic-shaped CeO2 delivered relatively better and stable catalytic performance, along with its rod-shaped counterpart, while the polyhedral CeO2-based material also delivered decent performance. Such interesting catalytic behavior has been corroborated by their physicochemical properties, as revealed by their characterization studies. Herein, to establish an appropriate structure-property-reactivity relationship, multimodal characterization techniques and control mechanistic experiments have been performed. This work demonstrates a concept to reduce the consumption of primary carbon resources and increase the utilization of secondary waste materials to facilitate a smooth transition from a linear economy (cf. cradle-to-grave model) to a circular economy (cf. cradle-to-cradle model).
- Subjects
CERIUM oxides; CHITIN; WASTE recycling; WASTE products; INDUSTRIAL chemistry; GLOBAL warming
- Publication
Catalysts (2073-4344), 2022, Vol 12, Issue 5, p460
- ISSN
2073-4344
- Publication type
Article
- DOI
10.3390/catal12050460