Index Catalog // ScholarsArchive@OSU

Visible-light-sensitive nanoscale Au-ZnO photocatalysts

Creator:: Kim, Ki-Joong, Kreider, Peter B., Chang, Chih-Hung, Park, Chul-Min, and Ahn, Ho-Geun
Abstract:: The role of gold nanoparticles supported on ZnO in photocatalytic activity for dye degradation was investigated. To do this, gold nanoparticles supported on ZnO (Au-ZnO) were prepared using a simple co-precipitation method. The prepared nanocatalyst was characterized by high resolution transmission electron microscopy, X-ray diffraction, temperature programmed reduction, X-ray photoelectron...
Resource Type:: Article
Full Text:: ):121-125 Yu H, Chen M, Rice PM, Wang SX, White RL, Sun S (2005) Dumbbell-like bifunctional Au-Fe304

Continuous precipitation of ceria nanoparticles from a continuous flow micromixer

Creator:: Tseng, Chih Heng T., Paul, Brian K., Chang, Chih-Hung, and Engelhard, Mark H.
Abstract:: Cerium oxide nanoparticles were continuously precipitated from a solution of cerium(III) nitrate and ammonium hydroxide using a static microchannel T-mixer. Tmixer synthesis results were compared with synthesis results from batch precipitation. Findings show that the method of mixing is important in the ceria precipitation process. Uniform porous film structures and...
Resource Type:: Article
Full Text:: of recipes based on the work of Chang and Chen [31]. For batch mixing, reactants were mixed in a

Nanostructured ZnO as Biomimetic Anti-reflective Coatings on Textured Silicon Using a Continuous Solution Process

Creator:: Han, Seung-Yeol, Paul, Brian K., and Chang, Chih-hung
Abstract:: A novel table-top, microreactor-assisted nanomaterial deposition (MAND™) process, which combines the merits of microreaction technology with solution-phase nanomaterial synthesis and film deposition, was used to grow a nanostructured ZnO anti-reflective coating on a textured silicon substrate from aqueous solution. The subwavelength, anti-reflective nanostructures mimicked the structure and performance of the...
Resource Type:: Article
Full Text:: . J. Y. Chen and K. W. Sun, Thin Solid Films, 2011, 519, 5194. 24. K. Tadanaga, N. Yamaguchi, Y

HanKatherineChemBiolEnvironEngineeringNumericalModelingSub-Wavelength.pdf

Creator:: Han, Katherine and Chang, Chih-Hung
Abstract:: This paper reviews the current progress in mathematical modeling of anti-reflective subwavelength structures. Methods covered include effective medium theory (EMT), finite-difference time-domain (FDTD), transfer matrix method (TMM), the Fourier modal method (FMM)/rigorous coupled-wave analysis (RCWA) and the finite element method (FEM). Time-based solutions to Maxwell’s equations, such as FDTD, have...
Full Text:: data storage constraints. Nanomaterials 2014, 4 104 Chen et al. [7,8] produced two studies

XingZhenyuChemistryReducingCO2DenseNanoporous.pdf

Creator:: Xing, Zhenyu, Wang, Bao, Gao, Wenyang, Pan, Changqing, Halsted, Joshua K., Chong, Elliot S., Lu, Jun, Wang, Xingfeng, Luo, Wei, Chang, Chih-Hung, Wen, Youhai, Ma, Shengqian, Amine, Khalil, and Ji, Xiulei
Abstract:: Converting CO2 to valuable materials is attractive.Herein, we report using simple metallothermic reactions to reduce atmospheric CO2 to dense nanoporous graphene. By using a Zn/Mg mixture as a reductant, the resulted nanoporous graphene exhibits highly desirable properties: high specific surface area of 1900 m2/g, a great conductivity of 1050 S/m...
Full Text:: , D.R. Rolison, R.M. Stroud, J.W. Long, Nano Lett. 7 (2007) 281–286. [16] L.B. Hu, W. Chen, X. Xie, N.A

Synthesis of colloidal PbSe nanoparticles using a microwave-assisted segmented flow reactor

Creator:: Hostetler, Eric B., Kim, Ki-Joong, Oleksak, Richard P., Fitzmorris, Robert C., Peterson, Daniel A., Padmavathi, Chandran, Chang, Chih-Hung, Paul, Brian K., Schut, David M., and Herman, Gregory S.
Abstract:: Colloidal lead selenide nanoparticles (PbSe NPs) were synthesized using a microwave-assisted continuous flow reactor. Rapid heating of precursors was performed in the microwave reaction zone to initiate nucleation and was followed by an oil bath growth zone. In this study we have evaluated the effect of the nucleation temperature on...
Resource Type:: Article
Full Text:: -501. [8] Zhu J-J, Wang H, Xu S, Chen H-Y. Sonochemical method for the preparation of monodisperse

Effects of Fluid Flow on the Growth and Assembly of ZnO Nanocrystals in a Continuous Flow Microreactor

Creator:: Choi, Chang-Ho, Su, Yu-Wei, and Chang, Chih-hung
Abstract:: Assembly of nanocrystals is considered one of the most promising approaches to design nano-, microstructures, and complex mesoscopic architectures. A variety of strategies to induce nanocrystal assembly have been reported, including directed assembly methods that apply external forces to fabricate assembled structures. In this study ZnO nanocrystals were synthesized in...
Resource Type:: Article
Full Text:: . T. Tan, B. J. Chen, X. W. Sun, W. J. Fan, H. S. Kwok, X. H. Zhang and S. J. Chua, Journal of

Oxide dispersion strengthened 304L stainless steel produced by ink jetting and laser powder bed fusion

Creator:: Paul, Brian K., Lee, Kijoon, He, Yujuan, Ghayoor, Milad, Chang, Chih-hung, and Pasebani, Somayeh
Abstract:: This paper discusses the fundamentals of a novel hybrid method to synthesize oxide dispersion strengthened (ODS) 304 L stainless steel (SS) alloy using a modified laser powder bed fusion (LPBF) machine. Previously, ODS metal matrix composites have been produced by LPBF via ball-milling, which is expensive to scale. Here, we selectively...
Resource Type:: Article
Full Text:: Annals 47/2:525–540. [2] Zhao C, Fezzaa K, Cunningham RW, Wen H, De Carlo F, Chen L, et al. Real-time

Ultrashort Near-Infrared Fiber-Optic Sensors for Carbon Dioxide Detection

Creator:: Chong, Xinyuan, Kim, Ki-Joong, Ohodnicki, Paul R., Li, Erwen, Chang, Chih-Hung, and Wang, Alan X.
Abstract:: In this paper, we report a fiber-optic carbon dioxide (CO₂) near-infrared (IR) absorption sensor with only 8-cm sensing length that is coated with nanoporous metalorganic framework material Cu-BTC (BTC = benzene-1,3, 5-tricarboxylate). The multimode optical fiber was etched by hydrofluoric acid to remove the cladding and part of the core,...
Resource Type:: Article
Full Text:: . 2002. [7] W.-C. Lai, S. Chakravarty, X. Wang, C. Lin, and R. T. Chen, “On-chip methane sensing by near

Formation of zinc oxide films using submicron zinc particle dispersions

Creator:: Rajachidambaram, Meena S., Varga, Tamas, Kovarik, Libor, Sanghavi, Rahul, Shutthanandan, Vaithiyalingam, Thevuthasan, Suntharampillai, Han, Seung-Yeol, Chang, Chih-Hung, and Herman, Gregory S.
Abstract:: The thermal oxidation of submicron metallic Zn particles was studied as a method to form nanostructured ZnO films. The particles used for this work were characterized by electron microscopy, x ray diffraction, and thermal analysis to evaluate the Zn-ZnO core shell structure, surface morphology, and oxidation characteristics. Significant nanostructural changes...
Resource Type:: Article
Full Text:: Sponsored Fellowship. 1B. Sun and H. Sirringhaus, Nano Lett. 5, 2408 (2005). 2B. L. Zhu, C. S. Xie, A. H

ScholarsArchive@OSU

Visible-light-sensitive nanoscale Au-ZnO photocatalysts

Continuous precipitation of ceria nanoparticles from a continuous flow micromixer

Nanostructured ZnO as Biomimetic Anti-reflective Coatings on Textured Silicon Using a Continuous Solution Process

HanKatherineChemBiolEnvironEngineeringNumericalModelingSub-Wavelength.pdf

XingZhenyuChemistryReducingCO2DenseNanoporous.pdf

Synthesis of colloidal PbSe nanoparticles using a microwave-assisted segmented flow reactor

Effects of Fluid Flow on the Growth and Assembly of ZnO Nanocrystals in a Continuous Flow Microreactor

Oxide dispersion strengthened 304L stainless steel produced by ink jetting and laser powder bed fusion

Ultrashort Near-Infrared Fiber-Optic Sensors for Carbon Dioxide Detection

Formation of zinc oxide films using submicron zinc particle dispersions

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