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Catalyst-TiO(OH)2 could drastically reduce the energy consumption of CO2 capture

https://doi.org/10.1038/s41467-018-05145-0

Lai, Qinghua ; Toan, Sam ; Assiri, Mohammed A. ; Cheng, Huaigang ; Russell, Armistead G. ; Adidharma, Hertanto ; Radosz, Maciej ; Fan, Maohong ( July 2018 , Nature Communications)

Abstract
Implementing Paris Climate Accord is inhibited by the high energy consumption of the state-of-the-art CO₂capture technologies due to the notoriously slow kinetics in CO₂desorption step of CO₂capture. To address the challenge, here we report that nanostructured TiO(OH)₂as a catalyst is capable of drastically increasing the rates of CO₂desorption from spent monoethanolamine (MEA) by over 4500%. This discovery makes CO₂capture successful at much lower temperatures, which not only dramatically reduces energy consumption but also amine losses and prevents emission of carcinogenic amine-decomposition byproducts. The catalytic effect of TiO(OH)₂is observed with Raman characterization. The stabilities of the catalyst and MEA are confirmed with 50 cyclic CO₂sorption and sorption. A possible mechanism is proposed for the TiO(OH)₂-catalyzed CO₂capture. TiO(OH)₂could be a key to the future success of Paris Climat e Accord.

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Green, safe, fast, and inexpensive removal of CO2 from aqueous KHCO3 solutions using a nanostructured catalyst TiO(OH)2: A milestone toward truly low-cost CO2 capture that can ease implementation of the Paris Agreement

https://doi.org/10.1016/j.nanoen.2018.09.009

Toan, Sam ; Lai, Qinghua ; O’Dell, William ; Sun, Zhao ; Song, Huiping ; Zhao, Ying ; Radosz, Maciej ; Adidharma, Hertanto ; Russell, Christopher ; Yao, Hongbao ; et al ( November 2018 , Nano Energy)

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Progress in catalytic synthesis of advanced carbon nanofibers

https://doi.org/10.1039/C7TA02007D

Lu, Wenyang ; He, Ting ; Xu, Bang ; He, Xin ; Adidharma, Hertanto ; Radosz, Maciej ; Gasem, Khaled ; Fan, Maohong ( January 2017 , Journal of Materials Chemistry A)

Carbon nanofibers (CNFs) have wide applications in various high-tech areas. The demand for CNFs can exponentially increase due to the rapid development of advanced functional materials. Accordingly, a transformational progress is being made in synthesizing CNFs, especially functionalized CNFs. A dominant CNF synthesis pathway is catalytic chemical vapor deposition (CCVD). Therefore, the goal of this work is to review the most recent progress in CCVD synthesis of functional CNFs and to understand how the process conditions and catalysts, especially metal catalysts, affect the physical and chemical properties of the produced CNFs.
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