@article{wang_shim_he_pourdeyhimi_gao_2021, title={Modeling the Triboelectric Behaviors of Elastomeric Nonwoven Fabrics}, volume={11}, ISSN={["1521-4095"]}, url={https://doi.org/10.1002/adma.202106429}, DOI={10.1002/adma.202106429}, abstractNote={Theoretical modeling of triboelectric nanogenerators (TENGs) is fundamental to their performance optimization, since it can provide useful guidance on the material selection, structure design, and parameter control of relevant systems. Built on the theoretical model of film‐based TENGs, here, an analytical model is introduced for conductor‐to‐dielectric contact‐mode nonwoven‐based TENGs, which copes with the unique hierarchical structure of nonwovens and details the correlation between the triboelectric output (maximum transferred charge density) and nonwoven structural parameters (thickness, solidity, and average fiber diameter). A series of styrene–ethylene–butylene–styrene nonwoven samples are fabricated through a melt‐blowing process to map nonwoven structural features within certain ranges, while an ion‐injection protocol is adopted to quantify the triboelectric output with superior consistency and reproducibility. With a database containing structural features and triboelectric output of 43 nonwoven samples, a good model fitting is achieved via nonlinear regression analysis in Python, which also shows good predictive power and suggests the existing of tribo‐output maxima at a specific thickness, solidity, or average fiber diameter when other structural parameters are fixed. The model is also successfully applied to a group of polypropylene meltblown nonwovens, which verifies its universality on meltblown‐nonwoven‐based TENGs.}, journal={ADVANCED MATERIALS}, publisher={Wiley}, author={Wang, Yanan and Shim, Eunkyoung and He, Nanfei and Pourdeyhimi, Behnam and Gao, Wei}, year={2021}, month={Nov} }
 @article{dong_wang_lei_tian_qi_wu_2020, title={Hierarchical mesoporous titania nanoshell encapsulated on polyimide nanofiber as flexible, highly reactive, energy saving and recyclable photocatalyst for water purification}, volume={253}, ISSN={["1879-1786"]}, DOI={10.1016/j.jclepro.2020.120021}, abstractNote={Titania is well known for its outstanding photocatalytic performance and widely applied in contaminants removal, air purification and water disinfection. However, directly using of titania powders in these applications will bring several drawbacks, such as low light utilization, costly separation recovery and human health concerns. Hence, numerous efforts have been tried for immobilization of titania on various substrates in order to overcome the aforementioned issues. Moreover, traditional methods for immobilization of titania on polymer substrates also have the disadvantages of surface area reduction, titania leaching and polymer degradation by oxidative radicals. Thus, in this work, a novel hierarchical mesoporous titania [email protected] nanofiber is constructed via the in-situ complexation-hydrolysis strategy by utilizing titanium oxysulfate as the precursor of titania and sulfuric acid as the crystal structure regulator. Benefited from the hierarchical mesoporous titania nanoshell and ultrafine electrospun polyimide nanofiber, a superior high reactive surface area is achieved (213 m2/g) via the stacking of nanopores (pore size distribution: 2–4 nm, 41.4%; 4–10 nm, 36.7%; 10–20 nm, 21.9%), leading to the excellent photocatalytic activity. Additionally, this buoyant PI nanofiber supported photocatalyst exhibits superb flexibility, and is highly reactive and energy saving since it can be easily recovered from the contaminated water without costly separation compared to the traditional titania slurry. More importantly, this unique photocatalyst demonstrates admirable photocatalytic efficiency retention (88%) after 10 cycles, which makes it a recyclable and economical photocatalytic material.}, journal={JOURNAL OF CLEANER PRODUCTION}, author={Dong, Guoqing and Wang, Yanan and Lei, Huanyu and Tian, Guofeng and Qi, Shengli and Wu, Dezhen}, year={2020}, month={Apr} }
 @article{dong_liu_kong_wang_tian_qi_wu_2019, title={Neoteric Polyimide Nanofiber Encapsulated by the TiO2 Armor As the Tough, Highly Wettable, and Flame-Retardant Separator for Advanced Lithium-Ion Batteries}, volume={7}, ISSN={["2168-0485"]}, DOI={10.1021/acssuschemeng.9b03525}, abstractNote={Nowadays, separators with superior properties have drawn widespread attention for the development of advanced and safe large-scale lithium-ion batteries (LIBs). Yet it is still a great challenge for improving overall the thermostability, flame endurance, wetting property, and ion-transport resistance of the polymer-based separators. Herein, a novel and green strategy is reported to address the aforementioned issue by means of the advanced nanostructured surface configuration design in which polyimide (PI) nanofibers are encapsulated by titania (TiO2) nanolayer via dipping in the titanium oxysulfate (TiOSO4) solution, which serves as the source of TiO2. Unlike conventional ceramics-coating methods, this distinctive TiO2@PI core–shell nanostructure is fabricated by the in situ hydrolysis deposition process, and the TiO2 nanoshell thickness can be controlled via simply changing the soaking time in TiOSO4 solution. After being encapsulated by the uniform TiO2 nanolayer, the PI-TiO2 core–shell separator manife...}, number={21}, journal={ACS SUSTAINABLE CHEMISTRY & ENGINEERING}, author={Dong, Guoqing and Liu, Bingxue and Kong, Lushi and Wang, Yanan and Tian, Guofeng and Qi, Shengli and Wu, Dezhen}, year={2019}, month={Nov}, pages={17643–17652} }
 @article{qu_he_patil_wang_banerjee_gao_2019, title={Screen Printing of Graphene Oxide Patterns onto Viscose Nonwovens with Tunable Penetration Depth and Electrical Conductivity}, volume={11}, ISSN={["1944-8252"]}, url={http://dx.doi.org/10.1021/acsami.9b00715}, DOI={10.1021/acsami.9b00715}, abstractNote={Graphene-based e-textiles have attracted great interest because of their promising applications in sensing, protection, and wearable electronics. Here, we report a scalable screen-printing process along with continuous pad-dry-cure treatment for the creation of durable graphene oxide (GO) patterns onto viscose nonwoven fabrics at controllable penetration depth. All the printed nonwovens show lower sheet resistances (1.2-6.8 kΩ/sq) at a comparable loading, as those reported in the literature, and good washfastness, which is attributed to the chemical cross-linking applied between reduced GO (rGO) flakes and viscose fibers. This is the first demonstration of tunable penetration depth of GO in textile matrices, wherein GO is also simultaneously converted to rGO and cross-linked with viscose fibers in our processes. We have further demonstrated the potential applications of these nonwoven fabrics as physical sensors for compression and bending.}, number={16}, journal={ACS APPLIED MATERIALS & INTERFACES}, publisher={American Chemical Society (ACS)}, author={Qu, Jiangang and He, Nanfei and Patil, Shradha V. and Wang, Yanan and Banerjee, Debjyoti and Gao, Wei}, year={2019}, month={Apr}, pages={14944–14951} }