A reusable, impurity-tolerant and noble metal-free catalyst for hydrocracking of waste polyolefins.
A reusable, impurity-tolerant and noble metal-free catalyst for hydrocracking of waste polyolefins.
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DOI:
10.1126/sciadv.adg5332
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发表时间:
2023-06-23
期刊:
影响因子:
13.6
通讯作者:
Lin, Bo-Lin
中科院分区:
文献类型:
--
作者:
Qiu, Zetian;Lin, Siyu;Chen, Zhuo;Chen, Anqi;Zhou, Yitian;Cao, Xudong;Wang, Yu;Lin, Bo-Lin
One-step conversion of low-purity polyolefins to value-added products without pretreatments represents a great opportunity for chemical recycling of waste plastics. However, additives, contaminants, and heteroatom-linking polymers tend to be incompatible with catalysts that break down polyolefins. Here, we disclose a reusable, noble metal–free and impurity-tolerant bifunctional catalyst, MoSx-Hbeta, for hydroconversion of polyolefins into branched liquid alkanes under mild conditions. The catalyst works for a wide scope of polyolefins, including different kinds of high–molecular weight polyolefins, polyolefins mixed with various heteroatom-linking polymers, contaminated polyolefins, and postconsumer polyolefins with/without cleaning under 250°C and 20 to 30 bar H2 in 6 to 12 hours. A 96% yield of small alkanes was successfully achieved even at a temperature as low as 180°C. These results demonstrate the great potentials of hydroconversion in practical use of waste plastics as a largely untapped carbon feedstock. MoSx-Hbeta efficiently catalyzes the hydroconversion of low-purity polyolefins to valuable alkanes under mild conditions.
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影响因子:
13.6
作者:
Geyer R;Jambeck JR;Law KL
通讯作者:
Law KL
DOI:
10.1016/j.jiec.2021.04.003
发表时间:
2021-04-24
影响因子:
6.1
作者:
Ali, Syed A.;Almulla, Faisal M.;Alasiri, Hassan S.
通讯作者:
Alasiri, Hassan S.
影响因子:
5.5
作者:
Galland, GB;de Souza, RF;Nunes, FF
通讯作者:
Nunes, FF
影响因子:
5.5
作者:
Hackler, Ryan A.;Lamb, Jessica V.;Delferro, Massimiliano
通讯作者:
Delferro, Massimiliano
影响因子:
5.2
作者:
bin Jumah, Abdulrahman;Tedstone, Aleksander A.;Garforth, Arthur A.
通讯作者:
Garforth, Arthur A.