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https://www.readbyqxmd.com/read/29651597/a-two-dimensional-model-of-disrupted-body-integrity-initial-evaluation-in-head-and-neck-cancer
#1
Kenneth Mah, Sophie Lebel, Jonathan Irish, Andrea Bezjak, Ada Y M Payne, Gerald M Devins
PURPOSE: This cross-sectional study presents an initial psychometric evaluation of a two-dimensional (perceptual and evaluative) conceptualization and measure of disrupted body integrity (DBI)-illness-related disruption of the sense of the body as an integrated, smoothly functioning whole. METHODS: Male and female head and neck cancer (HNC) outpatients (N = 98) completed a questionnaire package prior to outpatient visits. MAIN OUTCOME MEASURES: The Disrupted Body Integrity Scale (DBIS) was developed to measure the perceptual and evaluative facets of DBI...
April 13, 2018: Supportive Care in Cancer: Official Journal of the Multinational Association of Supportive Care in Cancer
https://www.readbyqxmd.com/read/29648436/towards-high-performance-lithium-sulfur-batteries-upcycling-of-ldpe-plastic-into-sulfonated-carbon-scaffold-via-microwave-promoted-sulfonation
#2
Patrick J Kim, Harif D Fontecha, Kyungho Kim, Vilas G Pol
Lithium sulfur batteries have been intensively explored during last decades as next-generation batteries due to the high energy density of 2600 Wh kg-1 and low cost. However, systemic challenges, mainly associated polysulfide shuttling and low Coulombic efficiency, plague the practical utilization of sulfur cathode in battery market. In order to address the issues mentioned above, many approaches have been investigated by tailoring the surface characterisitics and porosities of carbon scaffold. In this article, we first present a facile and effective strategy of preparing porous sulfonated carbon (PSC) from low density polyethylene (LDPE) plastic via microwave-promoted sulfonation...
April 12, 2018: ACS Applied Materials & Interfaces
https://www.readbyqxmd.com/read/29644778/high-performance-sodium-metal-anodes-enabled-by-a-bi-functional-potassium-salt
#3
Qiuwei Shi, Yiren Zhong, Min Wu, Hongzhi Wang, Hailiang Wang
Developing Na metal anodes that can be deeply cycled with high efficiency for a long time is a prerequisite for rechargeable Na metal batteries to be practically useful despite their notable advantages in theoretical energy density and potential low cost. High chemical reactivity with electrolyte and tendency for dendrite formation are two major issues limiting the reversibility of Na metal electrodes. In this work, we for the first time introduce potassium bis(trifluoromethylsulfonyl)imide (KTFSI) as a bi-functional electrolyte additive to stabilize Na metal electrodes, where the TFSI- anions decompose into lithium nitride and oxynitrides to render a desirable solid electrolyte interphase layer while the K+ cations preferentially adsorb on Na protrusions and provide electrostatic shielding to suppress dendritic deposition...
April 12, 2018: Angewandte Chemie
https://www.readbyqxmd.com/read/29629030/household-food-insecurity-diet-quality-and-weight-status-among-indigenous-women-mah-meri-in-peninsular-malaysia
#4
Chong Su Pei, Geeta Appannah, Norhasmah Sulaiman
BACKGROUND/OBJECTIVES: This cross-sectional study assessed household food security status and determined its association with diet quality and weight status among indigenous women from the Mah Meri tribe in Peninsular Malaysia. SUBJECTS/METHODS: The Radimer/Cornell Hunger and Food Insecurity Instrument and the Malaysian Healthy Eating Index (HEI) were used to assess household food security status and diet quality, respectively. Information on socio-demographic characteristics and 24-hour dietary recall data were collected through face-to-face interview, and anthropometric measurements including weight, height, and body mass index (BMI) were obtained from 222 women...
April 2018: Nutrition Research and Practice
https://www.readbyqxmd.com/read/29627536/monocyclic-aromatic-hydrocarbons-production-from-catalytic-cracking-of-pine-wood-derived-pyrolytic-vapors-over-ce-mo-2-n-hzsm-5-catalyst
#5
Qiang Lu, Hao-Qiang Guo, Min-Xing Zhou, Zhen-Xi Zhang, Min-Shu Cui, Yuan-Yuan Zhang, Yong-Ping Yang, Lai-Bao Zhang
A series of Mo2 N/HZSM-5 and transition metal modified Mo2 N/HZSM-5 catalysts were prepared for the catalytic upgrading of pine wood-derived pyrolytic vapors for the selective production of monocyclic aromatic hydrocarbons (MAHs), while restraining the formation of polycyclic aromatic hydrocarbons (PAHs). Pyrolysis-gas chromatography/mass spectrometry (Py-GC/MS) experiments were performed to determine the effects of several factors on selective MAHs production, including Mo2 N loading on HZSM-5, transition metal (Fe, Ce, La, Cu, Cr) modification of Mo2 N/HZSM-5, pyrolysis temperature, and catalyst-to-biomass ratio...
April 5, 2018: Science of the Total Environment
https://www.readbyqxmd.com/read/29618793/in-situ-cutting-of-graphene-into-short-nanoribbons-with-applications-to-ni-zn-batteries
#6
Chao Cui, Mingqiang Li, Xiaoliang Zhang
Rechargeable Ni-Zn batteries, with high safety, low cost and nontoxicity, can be expected to compete with lithium-ion batteries for market share. However, the issue of dissolution of zinc electrode largely limit the battery cycle life and remains unsolved. We designed a kind of graphene-ZnO hybrid electrode in which in-situ cutting of graphene into short nanoribbons can effectively anchor plenty of zinc atoms onto the surface of graphene. This not only thoroughly fixes the issue of dissolution of zinc electrode but also increases the specific surface areas of zinc and promotes chemical reaction rate of the charge-discharge processes...
April 4, 2018: Scientific Reports
https://www.readbyqxmd.com/read/29617114/high-capacity-mg-organic-batteries-based-on-nanostructured-rhodizonate-salts-activated-by-mg-li-dual-salt-electrolyte
#7
Jing Tian, Dunping Cao, Xuejun Zhou, Jiulin Hu, Minsong Huang, Chilin Li
Magnesium battery is a promising candidate for large-scale transportation and stationary energy storage due to the security, low coat, abundance and high volumetric energy density of Mg anode. But there are still some obstacles retarding the wide application of Mg batteries, including poor kinetics of Mg-ion transport in lattices and low theoretical capacity in inorganic framework. Mg-Li dual-salt electrolyte enables the kinetic activation by dominant intercalation of Li-ions instead of Mg-ion in cathode lattices without the compromise of stable Mg anode process...
April 4, 2018: ACS Nano
https://www.readbyqxmd.com/read/29616986/homogeneous-growth-of-tio-sub-2-sub-based-nanotubes-on-nitrogen-doped-reduced-graphene-oxide-and-its-enhanced-performance-as-a-li-ion-battery-anode
#8
Shayan Mehraeen, Adnan Tasdemir, Selmiye Alkan Gürsel, Alp Yürüm
Pursuing a promising replacement candidate for graphite as Li-ion battery anode, which can satisfy both engineering criteria and market needs has been the target of researchers for more than two decades. In this work, we have investigated the synergistic effect of nitrogen doped reduced graphene oxide (NrGO) and nanotubular TiO<sub>2</sub> to achieve high rate capabilities with high discharge capacities through a simple, one-step and scalable method. First, nanotubes of hydrogen titanate were hydrothermally grown on the surface of NrGO sheets, then converted to a mixed phase of TiO<sub>2</sub>-B and anatase (TB) by thermal annealing...
April 4, 2018: Nanotechnology
https://www.readbyqxmd.com/read/29616799/investigation-of-the-na-storage-property-of-one-dimensional-cu2-xse-nanorods
#9
He Li, Jiali Jiang, Jianxing Huang, Yunhui Wang, Yueying Peng, Yiyong Zhang, Bing-Joe Hwang, Jinbao Zhao
In this study, one-dimensional Cu2-xSe nanorods synthesized by a simple water evaporation induced self-assembly approach are served as anode material for Na-ion batteries (NIBs) for the first time. The Cu2-xSe electrode exhibits outstanding electrochemical performance. The initial discharge capacity is 149.3 mAh g-1 at the current density of 100 mA g-1, and the discharge capacity can maintain at 106.2 mAh g-1 after 400 cycles. Even at a high current density of 2000 mA g-1, the discharge capacity of Cu2-xSe electrode still maintains at 62...
April 4, 2018: ACS Applied Materials & Interfaces
https://www.readbyqxmd.com/read/29616796/the-synergetic-effects-of-multifunctional-composite-with-more-efficient-polysulfide-immobilization-and-ultrahigh-sulfur-content-in-lithium-sulfur-batteries
#10
Manfang Chen, Shouxin Jiang, Cheng Huang, Jing Xia, Xianyou Wang, Kaixiong Xiang, Peng Zeng, Yan Zhang, Sidra Jamil
A high-sulfur-loading cathode is the most crucial component for lithium-sulfur batteries (LSBs) to obtain considerable energy density for commercialization applications. The major challenges associated with high-sulfur-loading electrode are poor material utilization caused via the nonconductivity of the charged product (S) and the discharged product (Li2S), poor stability arisen from dissolution of lithium polysulfides (LiPSs) into most organic electrolytes and pulverization and structural damage of the electrode caused by large volumetric expansion...
April 4, 2018: ACS Applied Materials & Interfaces
https://www.readbyqxmd.com/read/29616556/triaxial-nanocables-of-conducting-polypyrrole-sns2-carbon-enabling-significantly-enhanced-li-ion-storage
#11
Jian-Gan Wang, Huanhuan Sun, Huanyan Liu, Dandan Jin, Xing-Rui Liu, Xu Li, Feiyu Kang
Two-dimensional (2D) SnS2 materials represent a class of high-capacity candidates as anodes of Li-ion batteries (LIBs), however, they are limited by inferior rate and cycling performance. Herein, we demonstrate unique triaxial nanocables of conducting polypyrrole@SnS2@carbon nanofiber (PPy@SnS2@CNF) prepared via a facile combination of hydrothermal method and vapor phase polymerization. The PPy@SnS2@CNF manifests a strong synergistic effect from its hierarchical nanoarchitecture, which provides enlarged electrode/electrolyte contact interfaces, highly electrical conductive pathways, sufficient electrolyte ingress/transport channels, as well as an intimate mechanical/electrochemical safeguard for fast electrode kinetics and good structural stability...
April 4, 2018: ACS Applied Materials & Interfaces
https://www.readbyqxmd.com/read/29616554/a-novel-sulphur-host-comprised-of-cobalt-and-porous-graphitic-carbon-derived-from-mofs-for-the-high-performance-li-s-battery
#12
Yanqiu Lu, Yijin Wu, Tian Sheng, Xinxing Peng, Zhenguang Gao, Shaojian Zhang, Li Deng, Rui Nie, Jolanta Swiatowska, Jun-Tao Li, Yao Zhou, Ling Huang, Xiaodong Zhou, Shi-Gang Sun
A composite consisting of cobalt and graphitic porous carbon (Co@GC-PC) is synthesized from bimetallic-metal-organic frameworks (MOFs) and employed as the sulfur host for high-performance Li-S batteries. Due to the presence of a large surface area (724 m2 g-1) and an abundance of macro/meso pores, the Co@GC-PC electrode is able to alleviate the debilitating effect originating from the volume expansion/contraction of sulfur species during the cycling process. Our In situ UV/Vis analysis indicates that the existence of Co@GC-PC promotes the adsorption of polysulfides during the discharge process...
April 4, 2018: ACS Applied Materials & Interfaces
https://www.readbyqxmd.com/read/29616547/synergistically-enhanced-interfacial-interaction-to-polysulfide-via-n-o-dual-doped-highly-porous-carbon-microrods-for-advanced-lithium-sulfur-batteries
#13
Nana Wang, Zhongfei Xu, Xun Xu, Ting Liao, Bin Tang, Zhongchao Bai, Shi Xue Dou
Lithium-sulfur (Li-S) batteries have received tremendous attention due to their extremely high theoretical capacity (1672 mAh g-1) and energy density (2600 Wh kg-1). Nevertheless, the commercialization of Li-S batteries has been blocked by the shuttle effect of lithium polysulfide intermediates, the insulating nature of sulfur, and the volume expansion during cycling. Here, hierarchical porous N, O dual doped carbon microrods (NOCMs) were developed as sulfur host materials with large pore volume (1.5 cm3 g-1) and high surface area (1147 m2 g-1)...
April 4, 2018: ACS Applied Materials & Interfaces
https://www.readbyqxmd.com/read/29611283/in-situ-electrochemically-derived-amorphous-li-2-s-for-high-performance-li-2-s-graphite-full-cell
#14
Fangmin Ye, Meinan Liu, Xue Yan, Jia Li, Zhenghui Pan, Hongfei Li, Yuegang Zhang
High-capacity Li2 S cathode (1166 mAh g-1 ) is regarded as a promising candidate for the next-generation lithium ion batteries. However, its high potential barrier upon the initial activation process leads to a low utilization of Li2 S. In this work, a Li2 S/graphite full cell with the zero activation potential barrier is achieved through an in situ electrochemical conversion of Li2 S8 catholyte into the amorphous Li2 S. Theoretical calculations indicate that the zero activation potential for amorphous Li2 S can be ascribed to its lower Li extraction energy than that of the crystalline Li2 S...
April 3, 2018: Small
https://www.readbyqxmd.com/read/29608847/crystallization-induced-morphological-tuning-towards-denim-like-graphene-nanosheets-in-a-kcl-copolymer-solution
#15
Yaxin Chen, Liluo Shi, Qiong Yuan, Ang Li, Shaozhuan Huang, Hui Ying Yang, Xiaohong Chen, Jisheng Zhou, Huaihe Song
Although nucleation and crystallization in solution-processed materials synthesis is a natural phenomenon, the morphology design of graphene nanosheets by controlling the dual crystallization has not been established. In this work, we systematically demonstrate how the dual crystallization of ice and potassium chloride induces the morphological variation of the freeze-dried scaffold from fractal structure towards stepped sheet-like structure. Denim-like graphene nanosheet (DGNS) has been fabricated by annealing the F127-coated stepped sheet-like scaffold in nitrogen...
April 2, 2018: ACS Nano
https://www.readbyqxmd.com/read/29608285/magnesium-hydride-nanoparticles-self-assembled-on-graphene-as-anode-material-for-high-performance-lithium-ion-batteries
#16
Baoping Zhang, Guanglin Xia, Dalin Sun, Fang Fang, Xuebin Yu
MgH2 nanoparticles (NPs) uniformly anchored on graphene (GR) are fabricated based on a bottom-up self-assembly strategy as anode materials for lithium-ion batteries (LIBs). Monodisperse MgH2 NPs with an average particle size of ~13.8 nm are self-assembled on the flexible GR, forming interleaved MgH2/GR (GMH) composite architectures. Such nanoarchitecture could effectively constrain the aggregation of active materials, buffer the strain of volume changes, and facilitate the electron/lithium ion transfer of the whole electrode, leading to a significant enhancement of the lithium storage capacity of the GMH composite...
April 2, 2018: ACS Nano
https://www.readbyqxmd.com/read/29608273/nanoscaled-na3ps4-solid-electrolyte-for-all-solid-state-fes2-na-batteries-with-ultra-high-initial-coulombic-efficiency-of-95-and-excellent-cyclic-performances
#17
Hongli Wan, Jean Pierre Mwizerwa, Xingguo Qi, Xiaoxiong Xu, Hong Li, Qiang Zhang, Liangting Cai, Yong-Sheng Hu, Xiayin Yao
Nano-sized Na3PS4 solid electrolyte with an ionic conductivity of 8.44×10-5 S cm-1 at room temperature is synthesized by a liquid-phase reaction. The resultant all-solid-state FeS2/Na3PS4/Na batteries show an extraordinary high initial Coulombic efficiency of 95% and demonstrate high energy density of 611 Wh kg-1 at current density of 20 mA g-1 at room temperature. The outstanding performances of the battery can be ascribed to good interface compatibility and intimate solid-solid contact at FeS2 electrode/nanosized Na3PS4 solid electrolytes interface...
April 2, 2018: ACS Applied Materials & Interfaces
https://www.readbyqxmd.com/read/29608062/metal-organic-framework-derived-core-shell-co-co-3-o-4-n-c-nanocomposites-as-high-performance-anode-materials-for-lithium-ion-batteries
#18
Ming Zhong, Wei-Wei He, Wei Shuang, Ying-Ying Liu, Tong-Liang Hu, Xian-He Bu
Metal-organic frameworks (MOFs) with diverse structures, adjustable pore sizes, and high surface areas have exhibited awesome potential in many fields. Here we report a simple carbonization strategy to obtain a series of core-shell structured Co/Co3 O4 nanoparticles encapsulated into nitrogen-doped carbon shells from cobalt-based metal-organic framework precursors at different carbonization temperatures. When it is applied as an anodes for lithium ion batteries, the Co/Co3 O4 @N-C-700 electrode delivers a maximum initial discharge capacity of 1535 mAh g-1 , the highest reversible capacity (903 mAh g-1 at a current density of 100 mA g-1 after 100 cycles), and the best rate performance (i...
April 2, 2018: Inorganic Chemistry
https://www.readbyqxmd.com/read/29608048/freestanding-mn3o4-cnf-s-paper-cathodes-with-high-sulfur-loading-for-lithium-sulfur-batteries
#19
Xin Chen, Lixia Yuan, Zhangxiang Hao, Xiaoxiao Liu, Jingwei Xiang, Zhuoran Zhang, Yunhui Huang, Jia Xie
Freestanding paper cathodes with layer-by-layer structure are synthesized for high-loading lithium-sulfur (Li-S) battery. Sulfur is loaded in a three dimensional (3D) interconnected nitrogen-doped carbonfiber (CNF) framework impregnated with Mn3O4 nanoparticles. The 3D-interconnected CNF framework creates an architecture with outstanding mechanical properties. Synergetic effects generated from physical and chemical entrapment could effectively suppress the dissolution and diffusion of the polysulfides. Electrochemical measurements suggest that the rationally designed structure endows the electrode with high utilization of sulfur and good cycle performance...
April 2, 2018: ACS Applied Materials & Interfaces
https://www.readbyqxmd.com/read/29606532/improved-properties-of-recycled-polypropylene-by-introducing-the-long-chain-branched-structure-through-reactive-extrusion
#20
Yingchun Li, Shuai Jia, Shuanli Du, Yafei Wang, Lida Lv, Jianbin Zhang
An approach originated from preparing long chain branched polypropylene (PP) was applied to modify the properties of recycled PP that involved reactive extrusion to introduce a branched chain structure onto recycled PP under the assistance of chemical reaction between maleic anhydride (MAH) monomer and glycidyl methacrylate (GMA) grafts. The results from Fourier transformed infrared spectroscopy (FTIR) indicated the reaction took place during melt mixing, and the intensity of ester increased with increasing amount of MAH...
March 29, 2018: Waste Management
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