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You searched for: Journal ACS applied materials Remove constraint Journal: ACS applied materials Publication Year 2016 Remove constraint Publication Year: 2016 Source 2016 v.8 no.36 Remove constraint Source: 2016 v.8 no.36
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1. Aluminum Titania Nanoparticle Composites as Nonprecious Catalysts for Efficient Electrochemical Generation of H2

Author:
Amin, Mohammed A.; Ahmed, Emad M.; Mostafa, Nasser Y.; Alotibi, Mona M.; Darabdhara, Gitashree; Das, Manash R.; Wysocka, Joanna; Ryl, Jacek; Abd El-Rehim, Sayed S.
Source:
ACS applied materials 2016 v.8 no.36 pp. 23655-23667
ISSN:
1944-8252
Subject:
chemical composition; platinum; X-ray photoelectron spectroscopy; X-ray diffraction; hydrogen production; mixing; sulfuric acid; titanium dioxide; catalysts; nanocomposites; particle size; electrochemistry; carbon; aluminum; hydrogen; nanotubes; cost effectiveness; nanoparticles; catalytic activity; X-radiation
Abstract:
... In this paper, we demonstrated, for the first time, aluminum titania nanoparticle (Al-TiO₂ NP) composites with variable amounts of TiO₂ NPs as nonprecious active catalysts for the electrochemical generation of H₂. These materials were synthesized by mixing desired amounts of hydrogen titanate nanotubes (TNTs), fabricated here by a cost-effective approach at moderate hydrothermal conditions, with a ...
DOI:
10.1021/acsami.6b05630

2. A Smorgasbord of Carbon: Electrochemical Analysis of Cobalt–Bis(benzenedithiolate) Complex Adsorption and Electrocatalytic Activity on Diverse Graphitic Supports

Author:
Eady, Shawn C.; MacInnes, Molly M.; Lehnert, Nicolai
Source:
ACS applied materials 2016 v.8 no.36 pp. 23624-23634
ISSN:
1944-8252
Subject:
adsorption; aqueous solutions; catalysts; cobalt; electrochemistry; electrolysis; glassy carbon electrode; graphene; hydrogen production; pH; platinum
Abstract:
... Heterogeneous dihydrogen production manifolds comprised of bulk graphite, pencil graphite, graphite powder in Nafion films, graphene, and glassy carbon electrodes with adsorbed proton reduction catalyst TBA[Co(S₂C₆Cl₂H₂)₂] have been prepared and tested for their efficiency to generate dihydrogen in acidic aqueous media. The catalyst adsorbed on these inexpensive graphitic surfaces consistently dis ...
DOI:
10.1021/acsami.6b05159

3. Biodegradation and Osteosarcoma Cell Cultivation on Poly(aspartic acid) Based Hydrogels

Author:
Juriga, Dávid; Nagy, Krisztina; Jedlovszky-Hajdú, Angéla; Perczel-Kovách, Katalin; Chen, Yong Mei; Varga, Gábor; Zrínyi, Miklós
Source:
ACS applied materials 2016 v.8 no.36 pp. 23463-23476
ISSN:
1944-8252
Subject:
adhesion; amines; aspartic acid; biodegradability; biodegradation; cell culture; collagenase; crosslinking; culture media; disulfide bonds; hydrogels; osteosarcoma; polymers; thiols; viability
Abstract:
... Development of novel biodegradable and biocompatible scaffold materials with optimal characteristics is important for both preclinical and clinical applications. The aim of the present study was to analyze the biodegradability of poly(aspartic acid)-based hydrogels, and to test their usability as scaffolds for MG-63 osteoblast-like cells. Poly(aspartic acid) was fabricated from poly(succinimide) a ...
DOI:
10.1021/acsami.6b06489

4. Considerations of the Effects of Naphthalene Moieties on the Design of Proton-Conductive Poly(arylene ether ketone) Membranes for Direct Methanol Fuel Cells

Author:
Wang, Baolong; Hong, Lihua; Li, Yunfeng; Zhao, Liang; Wei, Yuxue; Zhao, Chengji; Na, Hui
Source:
ACS applied materials 2016 v.8 no.36 pp. 24079-24088
ISSN:
1944-8252
Subject:
condensation reactions; electrolytes; fuel cells; ion exchange; ketones; methanol; naphthalene; permeability; polymers
Abstract:
... Novel sulfonated poly(arylene ether ketones) (SDN-PAEK-x), consisting of dual naphthalene and flexible sulfoalkyl groups, were prepared via polycondensation, demethylation, and sulfobutylation grafting reaction. Among them, SDN-PAEK-1.94 membrane with the highest ion exchange capacity (IEC = 2.46 mequiv·g–¹) exhibited the highest proton conductivity, which was 0.147 S· cm–¹ at 25 °C and 0.271 S·cm ...
DOI:
10.1021/acsami.6b06983

5. Contacting ZnO Individual Crystal Facets by Direct Write Lithography

Author:
Petkov, Nikolay; Volk, János; Erdélyi, Róbert; Lukács, István Endre; Nagata, Takahiro; Sturm, Chris; Grundmann, M.
Source:
ACS applied materials 2016 v.8 no.36 pp. 23891-23898
ISSN:
1944-8252
Subject:
crystals; electronic equipment; energy; geometry; mechanical stress; zinc oxide
Abstract:
... Many advanced electronic devices take advantage of properties developed at the surface facets of grown crystals with submicrometer dimensions. Electrical contacts to individual crystal facets can make possible the investigations of facet-dependent properties such as piezoelectricity in ZnO or III-nitride crystals having noncentrosymmetric structure. However, a lithography-based method for developi ...
DOI:
10.1021/acsami.6b05687

6. Controlled Dealloying of Alloy Nanoparticles toward Optimization of Electrocatalysis on Spongy Metallic Nanoframes

Author:
Li, Guangfang Grace; Villarreal, Esteban; Zhang, Qingfeng; Zheng, Tingting; Zhu, Jun-Jie; Wang, Hui
Source:
ACS applied materials 2016 v.8 no.36 pp. 23920-23931
ISSN:
1944-8252
Subject:
alloy nanoparticles; ambient temperature; annealing; copper; electrochemistry; gold; leaching; ligaments; methanol; models; thermodynamics
Abstract:
... Atomic-level understanding of the structural transformations of multimetallic nanoparticles triggered by external stimuli is of vital importance to the enhancement of our capabilities to fine-tailor the key structural parameters and thereby to precisely tune the properties of the nanoparticles. Here, we show that, upon thermal annealing in a reducing atmosphere, Au@Cu₂O core–shell nanoparticles tr ...
DOI:
10.1021/acsami.6b07309

7. Depth-Profiling Electronic and Structural Properties of Cu(In,Ga)(S,Se)2 Thin-Film Solar Cell

Author:
Chiang, Ching-Yu; Hsiao, Sheng-Wei; Wu, Pin-Jiun; Yang, Chu-Shou; Chen, Chia-Hao; Chou, Wu-Ching
Source:
ACS applied materials 2016 v.8 no.36 pp. 24152-24160
ISSN:
1944-8252
Subject:
X-ray diffraction; copper; electrical properties; gallium; indium; manufacturing; models; molybdenum; photovoltaic cells; selenium; spectroscopy; sulfides; sulfur; thermodynamics
Abstract:
... Utilizing a scanning photoelectron microscope (SPEM) and grazing-incidence X-ray powder diffraction (GIXRD), we studied the electronic band structure and the crystalline properties of the pentanary Cu(In,Ga)(S,Se)₂ (CIGSSe) thin-film solar cell as a function of sample depth on measuring the thickness-gradient sample. A novel approach is proposed for studying the depth-dependent information on thin ...
DOI:
10.1021/acsami.6b03869

8. Differential Collective- and Single-Cell Behaviors on Silicon Micropillar Arrays

Author:
Jahed, Zeinab; Zareian, Ramin; Chau, Yeung Yeung; Seo, Brandon B.; West, Mary; Tsui, Ting Y.; Wen, Weijia; Mofrad, Mohammad R. K.
Source:
ACS applied materials 2016 v.8 no.36 pp. 23604-23613
ISSN:
1944-8252
Subject:
branching; neuroglia; pseudopodia; silicon
Abstract:
... Three-dimensional vertically aligned nano- and micropillars have emerged as promising tools for a variety of biological applications. Despite their increasing usage, the interaction mechanisms of cells with these rigid structures and their effect on single- and collective-cell behaviors are not well understood for different cell types. In the present study, we examine the response of glioma cells ...
DOI:
10.1021/acsami.6b08668

9. Efficiency-Enhanced Planar Perovskite Solar Cells via an Isopropanol/Ethanol Mixed Solvent Process

Author:
Mao, Peng; Zhou, Qing; Jin, Zhiwen; Li, Hui; Wang, Jizheng
Source:
ACS applied materials 2016 v.8 no.36 pp. 23837-23843
ISSN:
1944-8252
Subject:
dimethyl sulfoxide; ethanol; isopropyl alcohol; photovoltaic cells; solvents
Abstract:
... Solution processable perovskite solar cells traditionally employed isopropanol as the solvent of CH₃NH₃I in a two-step method. One of the largest issues of this technique is the uncontrollable morphology of the perovskite film. In this study, a homogeneous and dense PbI₂ film was prepared by introducing DMSO as an additive into DMF and then reacting the mixture with CH₃NH₃I dissolved in an isoprop ...
DOI:
10.1021/acsami.6b08863

10. Electret Polyvinylidene Fluoride Nanofibers Hybridized by Polytetrafluoroethylene Nanoparticles for High-Efficiency Air Filtration

Author:
Wang, Shan; Zhao, Xinglei; Yin, Xia; Yu, Jianyong; Ding, Bin
Source:
ACS applied materials 2016 v.8 no.36 pp. 23985-23994
ISSN:
1944-8252
Subject:
air; electrical charges; electrostatic interactions; energy; filtration; governance; nanofibers; nanoparticles; particulates; pollution; polytetrafluoroethylene; thermoplastics
Abstract:
... Airborne particulate matter (PM) pollution has become a severe environmental concern calling for electret fibrous materials with high filtration efficiency and low pressure drop. However, restraining the dissipation of the electric charges in service to ensure the stabilized electrostatic force of the fibers for effectively adsorbing particles is extremely important and also challenging. Herein, w ...
DOI:
10.1021/acsami.6b08262

11. Electron-Beam-Induced Antiphase Boundary Reconstructions in a ZrO2-LSMO Pillar-Matrix System

Author:
Zhou, Dan; Sigle, Wilfried; Kelsch, Marion; Habermeier, Hanns-Ulrich; van Aken, Peter A.
Source:
ACS applied materials 2016 v.8 no.36 pp. 24177-24185
ISSN:
1944-8252
Subject:
fuel cells; irradiation; manganese; oxygen; spectroscopy; transmission electron microscopy
Abstract:
... The availability of aberration correctors for the probe-forming lenses makes simultaneous modification and characterization of materials down to atomic scale inside a transmission electron microscopy (TEM) realizable. In this work, we report on the electron-beam-induced reconstructions of three types of antiphase boundaries (APBs) in a probe-aberration-corrected TEM. With the utilization of high-a ...
DOI:
10.1021/acsami.6b06621

12. Electro-response of MoS2 Nanosheets-Based Smart Fluid with Tailorable Electrical Conductivity

Author:
Lee, Seungae; Kim, Yun Ki; Hong, Jin-Yong; Jang, Jyongsik
Source:
ACS applied materials 2016 v.8 no.36 pp. 24221-24229
ISSN:
1944-8252
Subject:
annealing; electrical conductivity; models; molybdenum disulfide; nanosheets; temperature
Abstract:
... The correlation between electrical conductivity and electro-responsive behavior is identified by introducing few-layer molybdenum disulfide (MoS₂) nanosheets to electrorheological (ER) fluid. Few-layer MoS₂ nanosheets are successfully fabricated, with a high yield of above 60%, using a straightforward method, and applied to an electro-responsive smart fluid. The electrical conductivity of MoS₂ is ...
DOI:
10.1021/acsami.6b07887

13. Electrospun Poly(acrylic acid)/Silica Hydrogel Nanofibers Scaffold for Highly Efficient Adsorption of Lanthanide Ions and Its Photoluminescence Performance

Author:
Wang, Min; Li, Xiong; Hua, Weikang; Shen, Lingdi; Yu, Xufeng; Wang, Xuefen
Source:
ACS applied materials 2016 v.8 no.36 pp. 23995-24007
ISSN:
1944-8252
Subject:
Fourier transform infrared spectroscopy; X-ray photoelectron spectroscopy; acrylic acid; adsorption; biocompatible materials; color; crosslinking; europium; fluorescence; hydrogels; ions; lanthanum; models; nanofibers; pH; photoluminescence; polyacrylic acid; sorption isotherms
Abstract:
... Combined with the features of electrospun nanofibers and the nature of hydrogel, a novel choreographed poly(acrylic acid)–silica hydrogel nanofibers (PAA-S HNFs) scaffold with excellent rare earth elements (REEs) recovery performance was fabricated by a facile route consisting of colloid-electrospinning of PAA/SiO₂ precursor solution, moderate thermal cross-linking of PAA-S nanofiber matrix, and f ...
DOI:
10.1021/acsami.6b08294

14. Fabrication of Large-Scale Microlens Arrays Based on Screen Printing for Integral Imaging 3D Display

Author:
Zhou, Xiongtu; Peng, Yuyan; Peng, Rong; Zeng, Xiangyao; Zhang, Yong-ai; Guo, Tailiang
Source:
ACS applied materials 2016 v.8 no.36 pp. 24248-24255
ISSN:
1944-8252
Subject:
color; image analysis; polymers
Abstract:
... The low-cost large-scale fabrication of microlens arrays (MLAs) with precise alignment, great uniformity of focusing, and good converging performance are of great importance for integral imaging 3D display. In this work, a simple and effective method for large-scale polymer microlens arrays using screen printing has been successfully presented. The results show that the MLAs possess high-quality s ...
DOI:
10.1021/acsami.6b08278

15. Facile Fabrication of a Polyethylene Mesh for Oil/Water Separation in a Complex Environment

Author:
Zhao, Tianyi; Zhang, Dongmei; Yu, Cunming; Jiang, Lei
Source:
ACS applied materials 2016 v.8 no.36 pp. 24186-24191
ISSN:
1944-8252
Subject:
adhesion; durability; gravity; hydrophobicity; oil spills; oils; pollutants; polyethylene; wettability
Abstract:
... Low cost, eco-friendly, and easily scaled-up processes are needed to fabricate efficient oil/water separation materials, especially those useful in harsh environments such as highly acidic, alkaline, and salty environments, to deal with serious oil spills and industrial organic pollutants. Herein, a highly efficient oil/water separation mesh with durable chemical stability was fabricated by simply ...
DOI:
10.1021/acsami.6b07432

16. Ferroelectric Resistive Switching in High-Density Nanocapacitor Arrays Based on BiFeO3 Ultrathin Films and Ordered Pt Nanoelectrodes

Author:
Lu, Zengxing; Fan, Zhen; Li, Peilian; Fan, Hua; Tian, Guo; Song, Xiao; Li, Zhongwen; Zhao, Lina; Huang, Kangrong; Zhang, Fengyuan; Zhang, Zhang; Zeng, Min; Gao, Xingsen; Feng, Jiajun; Wan, Jianguo; Liu, Junming
Source:
ACS applied materials 2016 v.8 no.36 pp. 23963-23968
ISSN:
1944-8252
Subject:
databases; electrodes; films (materials); platinum
Abstract:
... Ferroelectric resistive switching (RS), manifested as a switchable ferroelectric diode effect, was observed in well-ordered and high-density nanocapacitor arrays based on continuous BiFeO₃ (BFO) ultrathin films and isolated Pt nanonelectrodes. The thickness of BFO films and the lateral dimension of Pt electrodes were aggressively scaled down to <10 nm and ∼60 nm, respectively, representing an ultr ...
DOI:
10.1021/acsami.6b07792

17. Graphene Oxide-Silver Nanocomposite: Novel Agricultural Antifungal Agent against Fusarium graminearum for Crop Disease Prevention

Author:
Chen, Juanni; Sun, Long; Cheng, Yuan; Lu, Zhicheng; Shao, Kang; Li, Tingting; Hu, Chao; Han, Heyou
Source:
ACS applied materials 2016 v.8 no.36 pp. 24057-24070
ISSN:
1944-8252
Subject:
Fusarium graminearum; antibiotics; antifungal properties; bacteria; chemical reduction; disease prevention; fungal diseases of plants; fungal spores; graphene; hyphae; infection; leaf spot; leaves; minimum inhibitory concentration; nanocomposites; nanosilver; plant pathogenic fungi; reactive oxygen species; spore germination
Abstract:
... Nanoparticle-based antibacterial agents have emerged as an interdisciplinary field involving medicine, material science, biology, and chemistry because of their size-dependent qualities, high surface-to-volume ratio, and unique physiochemical properties. Some of them have shown great promise for their application in plant protection and nutrition. Here, GO-AgNPs nanocomposite was fabricated throug ...
DOI:
10.1021/acsami.6b05730

18. High Durable Ternary Nanodendrites as Effective Catalysts for Oxygen Reduction Reaction

Author:
Yang, Tao; Ma, Yanxia; Huang, Qingli; He, Maoshuai; Cao, Guojian; Sun, Xia; Zhang, Dongen; Wang, Mingyan; Zhao, Hong; Tong, Zhiwei
Source:
ACS applied materials 2016 v.8 no.36 pp. 23646-23654
ISSN:
1944-8252
Subject:
catalysts; catalytic activity; durability; nanocrystals; nanoparticles; oxygen
Abstract:
... Exploiting high catalytic activities and superior durability is significant for the lifetime and the cost of electro-catalysts for oxygen reduction reaction (ORR). Pt–Ni nanocrystals have attracted considerable attention owing to their exceptionally catalytic performance. However, the durability of Pt–Ni nanoparticles in acid media is still far below satisfaction. Consequently, improving the durab ...
DOI:
10.1021/acsami.6b05726

19. Host–Guest Self-Assembly Toward Reversible Thermoresponsive Switching for Bacteria Killing and Detachment

Author:
Shi, Zhen-Qiang; Cai, Yu-Ting; Deng, Jie; Zhao, Wei-Feng; Zhao, Chang-Sheng
Source:
ACS applied materials 2016 v.8 no.36 pp. 23523-23532
ISSN:
1944-8252
Subject:
Staphylococcus aureus; X-radiation; X-ray photoelectron spectroscopy; atomic force microscopy; bacteria; beta-cyclodextrin; chlorides; contact angle; hydrophilicity; polymerization; silicon; temperature
Abstract:
... A facile method to construct reversible thermoresponsive switching for bacteria killing and detachment was currently developed by host–guest self-assembly of β-cyclodextrin (β-CD) and adamantane (Ad). Ad-terminated poly(N-isopropylacrylamide) (Ad-PNIPAM) and Ad-terminated poly[2-(methacryloyloxy)ethyl]trimethylammonium chloride (Ad-PMT) were synthesized via atom transfer radical polymerization, an ...
DOI:
10.1021/acsami.6b07397

20. Influence of External Pressure on the Performance of Quantum Dot Solar Cells

Author:
Kim, Jaehoon; Jeong, Byeong Guk; Roh, Heebum; Song, Jiyun; Park, Myeongjin; Lee, Doh C.; Bae, Wan Ki; Lee, Changhee
Source:
ACS applied materials 2016 v.8 no.36 pp. 23947-23952
ISSN:
1944-8252
Subject:
photovoltaic cells; quantum dots; volatile organic compounds
Abstract:
... We report the influence of post-treatment via the external pressure on the device performance of quantum dot (QD) solar cells. The structural analysis together with optical and electrical characterization on QD solids reveal that the external pressure compacts QD active layers by removing the mesoscopic voids and enhances the charge carrier transport along QD solids, leading to significant increas ...
DOI:
10.1021/acsami.6b07771