2020
DOI: 10.1021/acsapm.0c00391
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Polymer Framework with Continuous Pores for Hydrogen Getters: Molding and a Boost in Getter Rate

Abstract: The hydrogen getter consisting of 1,4-bis­[phenylethynyl]­benzene (DEB) and a carbon-supported palladium catalyst (Pd/C) is limited by its powder forms in practical application. Development of the molded DEB-Pd/C is thus highly demanded. To solve the contradiction between molding and hydrogen-getter rate, herein, we prepared a porous polymer matrix composite for DEB-Pd/C by a facile one-phase removal method of their cocontinuous polymer matrices. Such a porous composite exhibits excellent hydrogen-getter activ… Show more

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Cited by 15 publications
(14 citation statements)
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“…To facilitate these materials, we developed a new silicone polymer getter composite resin having a high DEB-Pd/C content (up to 50 wt %), improved rheology for DIW, and minimal side reactions between the silicone polymer resin and DEB. In addition to the high hydrogen absorption capacity, these materials have good mechanical properties (good flexibility) even with a high getter content (50 wt %) unlike the previous reported literature where the composite became brittle above 30 wt % of the getter. To our knowledge, this is the first report of 3D-printed hydrogen getter polymer composites with high DEB-Pd/C getter content (up to 50 wt %) and high hydrogen absorption capacity (100.2 mL of hydrogen per gram of the getter composite) with good mechanical flexibility.…”
Section: Introductionmentioning
confidence: 93%
“…To facilitate these materials, we developed a new silicone polymer getter composite resin having a high DEB-Pd/C content (up to 50 wt %), improved rheology for DIW, and minimal side reactions between the silicone polymer resin and DEB. In addition to the high hydrogen absorption capacity, these materials have good mechanical properties (good flexibility) even with a high getter content (50 wt %) unlike the previous reported literature where the composite became brittle above 30 wt % of the getter. To our knowledge, this is the first report of 3D-printed hydrogen getter polymer composites with high DEB-Pd/C getter content (up to 50 wt %) and high hydrogen absorption capacity (100.2 mL of hydrogen per gram of the getter composite) with good mechanical flexibility.…”
Section: Introductionmentioning
confidence: 93%
“…In conclusion, Raman spectra indicated that GO was converted into SGO and Pd nanoparticles were supported on the SGO surface. In order to further explore the chemical composition of GO and SGO, X-ray photoelectron spectroscopy (XPS) analysis was applied to investigate their elemental composition and states [7]. Table 2 shows the C, O, N, and Si atomic ratios for each sample.…”
Section: Synthesis and Characterization Of Sgomentioning
confidence: 99%
“…Therefore, polymer getters were developed to solve this problem. Polymer getters will work better in certain conditions because they can be easily fabricated into various shapes and forms due to their processability [4,7]. A common polymer getter is composed of polydimethylsiloxane (PDMS), Pd/C, and DEB [4].…”
Section: Introductionmentioning
confidence: 99%
“…[16][17][18][19][20][21][22] The unsaturated organic molecule and catalyst mixture is termed a 'getter' (or scavenger) and is commonly used as a ller in chemically reactive composites. [23][24][25][26] The high hydrogen absorption efficiency of the organic molecule (from unsaturated to saturated) dictates a relatively porous hosting polymer such as polydimethylsiloxane (PDMS) silicone rubber. 27 Our choice of a porous matrix allows exploring the effect of the unsaturated organic molecules on hydrogen absorption in relatively short testing times (<24 hours).…”
Section: Introductionmentioning
confidence: 99%