Dual-Functional Ice/Water Interface Allows High-Yield
Formation of Al13 with Low Energy
Version 3 2018-02-10, 00:18
Version 2 2017-10-17, 18:52
Version 1 2017-08-29, 19:38
Posted on 2018-02-10 - 00:18
Keggin Al13[(AlO4Al12(OH)24(H2O)12]7+ is a well-known
efficient coagulant widely used in water purification and treatment.
The production of high-content Al13 is still costly, and
it is therefore essential to develop new eco-efficient and low energy
demand synthesis methods for practical application. Solid–water
interfaces play a dominant role in heterogeneous reactions, which
can be utilized in various processes through rationally designed interfaces.
Here, we designed an Al3+ and OH– interface
by using NaOH-doped ice as a solid and AlCl3 solution as
liquid for Al13 production. This system provides a natural
and renewable solid–water interface through ice melting, while
simultaneously minimizing external energy input and maintaining an
effective heterogeneous interface reaction for production of high-quality
Al13 species. The dual-function of ice/water interface
enables the formation of Al13 with a high yield of up to
90% compared to initial total Al. Moreover, global areas with cold
winter climate conditions may exploit this process reducing the need
for external artificial energy. As AlCl3 can be obtained
with low cost, this method may have great potential for industrial
mass production of Al13.
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Kuang, Liang; Li, Ning; Jefferson, William A.; Bai, Yaohui; Ji, Qinghua; Liu, Huijuan; et al. (2017). Dual-Functional Ice/Water Interface Allows High-Yield
Formation of Al13 with Low Energy. ACS Publications. Collection. https://doi.org/10.1021/acssuschemeng.7b01630
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AUTHORS (7)
LK
Liang Kuang
NL
Ning Li
WJ
William A. Jefferson
YB
Yaohui Bai
QJ
Qinghua Ji
HL
Huijuan Liu
JQ
Jiuhui Qu