@misc{peterson_lee_barton_epps_parsons_2021, title={Fibre-based composites from the integration of metal-organic frameworks and polymers}, volume={6}, ISSN={["2058-8437"]}, url={https://doi.org/10.1038/s41578-021-00291-2}, DOI={10.1038/s41578-021-00291-2}, number={7}, journal={NATURE REVIEWS MATERIALS}, author={Peterson, Gregory W. and Lee, Dennis T. and Barton, Heather F. and Epps, Thomas H., III and Parsons, Gregory N.}, year={2021}, month={Jul}, pages={605–621} } @article{lee_dai_peterson_hall_pomerantz_hoffman_parsons_2021, title={Highly Breathable Chemically-Protective MOF-Fiber Catalysts}, volume={10}, ISSN={["1616-3028"]}, DOI={10.1002/adfm.202108004}, abstractNote={Abstract}, journal={ADVANCED FUNCTIONAL MATERIALS}, author={Lee, Dennis T. and Dai, Zijian and Peterson, Gregory W. and Hall, Morgan G. and Pomerantz, Natalie L. and Hoffman, Nicole and Parsons, Gregory N.}, year={2021}, month={Oct} } @article{lee_jamir_peterson_parsons_2020, title={Protective Fabrics: Metal-Organic Framework Textiles for Rapid Photocatalytic Sulfur Mustard Simulant Detoxification}, volume={2}, ISSN={["2590-2385"]}, DOI={10.1016/j.matt.2019.11.005}, abstractNote={Metal-organic frameworks (MOFs) can catalyze toxic chemical decontamination, but new MOF materials and synthesis strategies are needed to improve performance, particularly in field-usable MOF-textile formats. This article reports for the first time the exceptional photocatalytic reactivity of Al-PMOF (Al-porphyrin-based MOF), composed of an earth-abundant metal-containing Al(OH)O4 cluster bridged by H2TCPP (5,10,15,20-tetrakis(4-carboxyphenyl)porphyrin) chromophores, against the toxic sulfur mustard simulant 2-chloroethyl ethyl sulfide (CEES) under visible-light irradiation. Furthermore, Al-PMOF is strongly immobilized into polymeric fibers via well-controlled Al2O3 solid film conversion using dimethylformamide/water cosolvent. The approach enables a secure integration of conformal Al-PMOF films onto polymer fibers at a relatively low synthesis temperature (120°C). In addition, on a per-unit mass of MOF basis, the surface-bound Al-PMOF films enable extremely rapid CEES detoxification turnover frequency, up to 170 molCEESmolchromophore−1min−1, more than 10-fold faster than the best MOF powders and 2-fold better than MOF films reported to date.}, number={2}, journal={MATTER}, author={Lee, Dennis T. and Jamir, Jovenal D. and Peterson, Gregory W. and Parsons, Gregory N.}, year={2020}, month={Feb}, pages={404–415} } @article{pomerantz_anderson_dugan_hoffman_barton_lee_oldham_peterson_parsons_2019, title={Air, Water Vapor, and Aerosol Transport through Textiles with Surface Functional Coatings of Metal Oxides and Metal-Organic Frameworks}, volume={11}, ISSN={["1944-8252"]}, url={https://doi.org/10.1021/acsami.9b04091}, DOI={10.1021/acsami.9b04091}, abstractNote={Currently, air permeable chemical/biological (CB) protective garments are based on activated carbon technology, which reduces moisture vapor transport needed for evaporative cooling and has potential to absorb and concentrate toxic materials. Researchers are exploring classes of sorbent materials that can selectively accumulate and decompose target compounds for potential to enhance protective suits and allow for novel filtration devices. Here, the metal-organic frameworks (MOFs) UiO-66-NH2 and HKUST-1 have been identified as such materials. To better understand how MOFs can perform in future CB protective systems, atomic layer deposition (ALD) and solution deposition were used to modify nonwoven polypropylene and flame-resistant fabrics with HKUST-1 and UiO-66-NH2. Air permeation, water vapor transport, filtration efficiency, and chemical reactivity against chemical agent simulants were assessed in relation to ALD thickness and MOF crystal size. MOF deposition on substrates decreased both air and chemical permeation while increasing filtration efficiency and chemical sorption. Moisture vapor transport was not affected by MOF growth on substrates, which is promising when considering thermal properties of protective garments. Future work should continue to explore how MOF deposition onto fiber and textile substrates impacts transport properties and chemical absorbance.}, number={27}, journal={ACS APPLIED MATERIALS & INTERFACES}, publisher={American Chemical Society (ACS)}, author={Pomerantz, Natalie L. and Anderson, Erin E. and Dugan, Nicholas P. and Hoffman, Nicole F. and Barton, Heather F. and Lee, Dennis T. and Oldham, Christopher J. and Peterson, Gregory W. and Parsons, Gregory N.}, year={2019}, month={Jul}, pages={24683–24690} } @article{hill_lee_williams_needham_dandley_oldham_parsons_2019, title={Insight on the Sequential Vapor Infiltration Mechanisms of Trimethylaluminum with Poly(methyl methacrylate), Poly(vinylpyrrolidone), and Poly(acrylic acid)}, volume={123}, ISSN={["1932-7447"]}, url={https://doi.org/10.1021/acs.jpcc.9b02153}, DOI={10.1021/acs.jpcc.9b02153}, abstractNote={The sequential vapor infiltration (SVI) method, based on atomic layer deposition chemistry, allows the creation of a polymer–inorganic hybrid material through the diffusion of metal–organic vapor reagents into a polymer substrate. This study investigates the reactivity of the ester, amide, and carboxylic acid functional groups of poly(methyl methacrylate) (PMMA), poly(vinylpyrrolidone) (PVP), and poly(acrylic acid) (PAA), respectively, in the presence of trimethylaluminum (TMA) vapor. This work explores the possible reaction mechanisms of these functional groups through in situ Fourier transform infrared spectroscopy and ab initio quantum chemical analysis. At temperatures of ≤100 °C, TMA physisorbs to the carbonyl groups of PMMA. As the temperature is increased, TMA forms a covalent bond with PMMA. TMA physisorbs to PVP and then partially desorbs in the presence of water for all studied temperatures of ≤150 °C. PAA readily reacts with TMA to form a covalent bond with the carbonyl group at 60 °C. This inc...}, number={26}, journal={JOURNAL OF PHYSICAL CHEMISTRY C}, publisher={American Chemical Society (ACS)}, author={Hill, Grant T. and Lee, Dennis T. and Williams, Philip S. and Needham, Craig D. and Dandley, Erinn C. and Oldham, Christopher J. and Parsons, Gregory N.}, year={2019}, month={Jul}, pages={16146–16152} } @article{lee_jamir_peterson_parsons_2019, title={Water-Stable Chemical-Protective Textiles via Euhedral Surface-Oriented 2D Cu-TCPP Metal-Organic Frameworks}, volume={15}, ISSN={["1613-6829"]}, url={https://doi.org/10.1002/smll.201805133}, DOI={10.1002/smll.201805133}, abstractNote={Abstract}, number={10}, journal={SMALL}, publisher={Wiley}, author={Lee, Dennis T. and Jamir, Jovenal D. and Peterson, Gregory W. and Parsons, Gregory N.}, year={2019}, month={Mar} } @article{lee_chung_park_kim_lee_cho_yoo_han_shin_kim_2018, title={Effect of semiconductor polymer backbone structures and side-chain parameters on the facile separation of semiconducting single-walled carbon nanotubes from as-synthesized mixtures}, volume={429}, ISSN={["1873-5584"]}, DOI={10.1016/j.apsusc.2017.06.137}, abstractNote={Semiconducting single-walled carbon nanotubes (SWNTs) show promise as core materials for next-generation solar cells and nanoelectronic devices. However, most commercial SWNT production methods generate mixtures of metallic SWNTs (m-SWNTs) and semiconducting SWNT (sc-SWNTs). Therefore, sc-SWNTs must be separated from their original mixtures before use. In this study, we investigated a polymer-based, noncovalent sc-SWNT separation approach, which is simple to perform and does not disrupt the electrical properties of the SWNTs, thus improving the performance of the corresponding sc-SWNT-based applications. By systematically investigating the effect that different structural features of the semiconductor polymer have on the separation of sc-SWNTs, we discovered that the length and configuration of the alkyl side chains and the rigidity of the backbone structure exert significant effects on the efficiency of sc-SWNT separation. We also found that electron transfer between the semiconductor polymers and sc-SWNTs is strongly affected by their energy-level alignment, which can be tailored by controlling the donor-acceptor configuration in the polymer backbone structures. Among the polymers investigated, the highly planar P8T2Z-C12 semiconductor polymer showed the best sc-SWNT separation efficiency and unprecedentedly strong electronic interaction with the sc-SWNTs, which is important for improving their performance in applications.}, journal={APPLIED SURFACE SCIENCE}, author={Lee, Dennis T. and Chung, Jong Won and Park, Geonhee and Kim, Yun-Tae and Lee, Chang Young and Cho, Yeonchoo and Yoo, Pil J. and Han, Jae-Hee and Shin, Hyeon-Jin and Kim, Woo-Jae}, year={2018}, month={Jan}, pages={264–271} } @article{barton_davis_lee_parsons_2018, title={Solvothermal Synthesis of MIL-96 and UiO-66-NH2 on Atomic Layer Deposited Metal Oxide Coatings on Fiber Mats}, volume={6}, ISSN={["1940-087X"]}, DOI={10.3791/57734}, abstractNote={Metal-organic frameworks (MOFs), which contain reactive metal clusters and organic ligands allowing for large porosities and surface areas, have proven effective in gas adsorption, separations, and catalysis. MOFs are most commonly synthesized as bulk powder, requiring additional processes to adhere them to functional devices and fabrics that risk decreasing the powder porosity and adsorption capacity. Here, we demonstrate a method of first coating fabrics with metal oxide films using atomic layer deposition (ALD). This process creates conformal films of controllable thickness on each fiber, while providing a more reactive surface for MOF nucleation. By submerging the ALD coated fabric in solution during solvothermal MOF synthesis, the MOFs create a conformal, well-adhered coating on the fibers, resulting in a MOF-functionalized fabric, without additional adhesion materials that may block MOF pores and functional sites. Here we demonstrate two solvothermal synthesis methods. First, we form a MIL-96(Al) layer on polypropylene fibers using synthetic conditions that convert the metal oxide to MOF. Using initial inorganic films of varying thicknesses, diffusion of the organic linker into the inorganic allows us to control the extent of MOF loading on the fabric. Second, we perform a solvothermal synthesis of UiO-66-NH2 in which the MOF nucleates on the conformal metal oxide coating on polyamide-6 (PA-6) fibers, thereby producing a uniform and conformal thin film of MOF on the fabric. The resulting materials can be directly incorporated into filter devices or protective clothing and eliminate the maladroit qualities of loose powder.}, number={136}, journal={JOVE-JOURNAL OF VISUALIZED EXPERIMENTS}, author={Barton, Heather F. and Davis, Alexandra K. and Lee, Dennis T. and Parsons, Gregory N.}, year={2018}, month={Jun} } @article{lee_zhao_peterson_parsons_2017, title={Catalytic "MOF-Cloth" Formed via Directed Supramolecular Assembly of UiO-66-NH2 Crystals on Atomic Layer Deposition-Coated Textiles for Rapid Degradation of Chemical Warfare Agent Simulants}, volume={29}, ISSN={["1520-5002"]}, DOI={10.1021/acs.chemmater.7b00949}, abstractNote={Highly tunable metal–organic framework (MOF) materials, including, for example, UiO-66-NH2, are known to be effective catalysts to degrade chemical warfare agents (CWAs) with half-lives near 1 min. Therefore, many researchers have been actively working on producing supported MOF materials to improve application effectiveness by using relatively slow solvothermal synthesis or repetitious stepwise layer-by-layer methods. Herein, we demonstrate a facile route to rapidly assemble presynthesized UiO-66-NH2 crystals onto nonwoven polypropylene (PP) fibrous mats at ambient temperature. Crystal assembly is chemically directed using β-cyclodextrin (β-CD) and cetyltrimethylammonium bromide (CTAB) as surfactant assembly agents, where the agents quickly (within 5 min) self-assemble on the crystal surface and promote physically robust chemical surface attachment while simultaneously impeding solution-phase crystal agglomeration. Furthermore, we find that when the PP is preconditioned using conformal metal oxide thin f...}, number={11}, journal={CHEMISTRY OF MATERIALS}, author={Lee, Dennis T. and Zhao, Junjie and Peterson, Gregory W. and Parsons, Gregory N.}, year={2017}, month={Jun}, pages={4894–4903} } @article{lee_zhao_oldham_peterson_parsons_2017, title={UiO-66-NH2 Metal Organic Framework (MOF) Nucleation on TiO2, ZnO, and Al2O3 Atomic Layer Deposition-Treated Polymer Fibers: Role of Metal Oxide on MOF Growth and Catalytic Hydrolysis of Chemical Warfare Agent Simulants}, volume={9}, ISSN={["1944-8244"]}, url={https://doi.org/10.1021/acsami.7b15397}, DOI={10.1021/acsami.7b15397}, abstractNote={Metal-organic frameworks (MOFs) chemically bound to polymeric microfibrous textiles show promising performance for many future applications. In particular, Zr-based UiO-66-family MOF-textiles have been shown to catalytically degrade highly toxic chemical warfare agents (CWAs), where favorable MOF/polymer bonding and adhesion are attained by placing a nanoscale metal-oxide layer on the polymer fiber preceding MOF growth. To date, however, the nucleation mechanism of Zr-based MOFs on different metal oxides and how product performance is affected are not well understood. Herein, we provide new insight into how different inorganic nucleation films (i.e., Al2O3, ZnO, or TiO2) conformally coated on polypropylene (PP) nonwoven textiles via atomic layer deposition (ALD) influence the quality, overall surface area, and the fractional yield of UiO-66-NH2 MOF crystals solvothermally grown on fiber substrates. Of the materials explored, we find that TiO2 ALD layers lead to the most effective overall MOF/fiber adhesion, uniformity, and a rapid catalytic degradation rate for a CWA simulant, dimethyl p-nitrophenyl phosphate (DMNP) with t1/2 = 15 min, 580-fold faster than the catalytic performance of untreated PP textiles. Interestingly, compared to ALD TiO2 and Al2O3, ALD ZnO induces a larger MOF yield in solution and mass loading on PP fibrous mats. However, this larger MOF yield is ascribed to chemical instability of the ZnO layer under MOF formation condition, leading to Zn2+ ions that promote further homogeneous MOF growth. Insights presented here improve understanding of compatibility between active MOF materials and substrate surfaces, which we believe will help advanced MOF composite materials for a variety of useful functions.}, number={51}, journal={ACS APPLIED MATERIALS & INTERFACES}, publisher={American Chemical Society (ACS)}, author={Lee, Dennis T. and Zhao, Junjie and Oldham, Christopher J. and Peterson, Gregory W. and Parsons, Gregory N.}, year={2017}, month={Dec}, pages={44847–44855} } @article{zhao_lee_yaga_hall_barton_woodward_oldham_walls_peterson_parsons_2016, title={Ultra-Fast Degradation of Chemical Warfare Agents Using MOF-Nanofiber Kebabs}, volume={55}, ISSN={["1521-3773"]}, url={http://gateway.webofknowledge.com/gateway/Gateway.cgi?GWVersion=2&SrcAuth=ORCID&SrcApp=OrcidOrg&DestLinkType=FullRecord&DestApp=WOS_CPL&KeyUT=WOS:000385799200053&KeyUID=WOS:000385799200053}, DOI={10.1002/anie.201606656}, abstractNote={Abstract}, number={42}, journal={ANGEWANDTE CHEMIE-INTERNATIONAL EDITION}, author={Zhao, Junjie and Lee, Dennis T. and Yaga, Robert W. and Hall, Morgan G. and Barton, Heather F. and Woodward, Ian R. and Oldham, Christopher J. and Walls, Howard J. and Peterson, Gregory W. and Parsons, Gregory N.}, year={2016}, month={Oct}, pages={13224–13228} }