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诊断近端食管及喉咽非酸性反流发作的多通道腔内阻抗检测的应用

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中国医学文摘（耳鼻咽喉科学） 2010年第5期25卷 266-268页

作者： Radu Tutuian donald O.castell美国南卡罗来纳州查尔斯顿市南卡罗来纳医科大学胃肠和肝胆科李广华美国南卡罗来纳州查尔斯顿市南卡罗来纳医科大学胃肠和肝胆科北美医学基金会

移动食管内p H监测是诊断胃食管反流性疾病（gastroesophageal reflux disease,GERD）的＂金标准＂。该监测基于假设胃食管反流（gastroesophageareflux,GER）患者在没有接受酸抑制剂治疗时,由于食管下括约肌（lower esophageal sphinct... 详细信息

移动食管内p H监测是诊断胃食管反流性疾病（gastroesophageal reflux disease,GERD）的＂金标准＂。该监测基于假设胃食管反流（gastroesophageareflux,GER）患者在没有接受酸抑制剂治疗时,由于食管下括约肌（lower esophageal sphincter,LES）压力降低而导致酸性物质反流到食管内。

关键词：食管(Esophagus) 胃食管反流(Gastroesophageal Reflux) 食管pH监测(Esophageal pH Monitoring) 多通道腔内阻抗(multichannel intralumminal impedance)

Suitability of Blends from Virgin and Reprocessed Polylactide: Performance and Energy Valorization Kinet

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Journal of Renewable Materials 2018年第4期6卷 370-382页

作者： O.Gil-castell J.D.Badia A.Ribes-Greus Instituto de Tecnología de Materiales(ITM) Universitat Politècnica de ValènciaCamino de Vera s/n46022 ValènciaSpain Departament d’Enginyeria Química Escola Tècnica Superior d’EnginyeriaUniversitat de ValènciaAv.de la Universitat s/n46100 BurjassotSpain

A blending strategy of virgin and reprocessed polylactide may be postulated as an alternative to reduce the material cost at industrial level,and as a valorization route to plastic waste management of production *** performance of blends prepared from virgin polylactide and polylactide mechanically reprocessed up to two cycles(PLA-V/R)was assessed in terms of thermo-oxidative stability,morphology,viscoelasticity and thermal kinetics for energetic ***-V/R blends showed appropriate thermo-oxidative *** amorphous nature of polylactide was preserved after *** viscoelastic properties showed an increment of the mechanical blend effectiveness,which suggested the feasibility of using PLA-V/R blends under similar mechanical conditions to those of virgin PLA ***,it was shown that the energetic valorization of PLA-V/R blends would result in a more feasible process,due to the lower required activation energy,thus highlighting the advantages of the energetic demand for the *** conclusion,PLA-V/R blends showed similar processability,service performance and valorization routes as virgin PLA and therefore could be relevant in the sustainable circular industry of bioplastics.

关键词： Polylactide (PLA) mechanical recycling reprocessing energetic valorisation thermal analysis

Beyond public engagement

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Beyond public engagement

Relationship between surface area and crystal size of pure and doped cerium oxides

作者： Ruiz-castell Pedro 等

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Journal of Rare Earths 2010年第5期28卷 647-653页

作者： C. Bueno-Ferrer S. Parres-Esclapez D. Lozano-castelló A. Bueno-López Analytical Chemistry Nutrition & Food Sciences Department Inorganic Chemistry Department University of Alicante Ap. 99 E-03080 Alicante Spain

Pure and Zr, La or Pr-doped cerium oxides were characterised by transmission electron microscopy (TEM), N2 adsorption-desorption at –196 oC and X-ray diffraction (XRD). For crystal sizes calculation, the Scherrer and Williamson-Hall equations were compared, and the relationship between surface area and crystal size was critically discussed. It was demonstrated that the Williamson-Hall equation must be used instead of the Scherrer equation to calculate crystal sizes, since the latter equation underestimated ...

关键词： ceria XRD N2 adsorption crystal size surface area rare earths

Stable NiO-CeO_(2) nanoparticles with improved carbon resistance for methane dry reforming

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Journal of Rare Earths 2022年第1期40卷 57-62页

作者： Andrea Cárdenas-Arenas Esther Bailón-García Dolores Lozano-castelló Patrick Da Costa Agustín Bueno-López Department of Inorganic Chemistry University of AlicanteCarretera de San Vicente s/nE03080AlicanteSpain Sorbonne Universite Institut Jean Le Rond d'AlembertCNRS UMR 71902 place de la gare de ceinture78210Saint Cyr L'EcoleFrance

High surface area mixed oxide 8.7%NiO-CeO_(2) nanoparticles(122 m2/g;6-7 nm)were prepared using a reversed microemulsion method,and were tested for dry methane reforming(DRM).The catalytic activity of these nanoparticles remains stable under the severe conditions of DRM(700℃),and they show better carbon resistance than conventional NiO-CeO_(2) catalysts prepared without control of the *** activity and selectivity of nanoparticles and reference catalyst are similar,but nanoparticles reduce the accumulation of carbon by 63%during the DRM tests,which is a key feature for this *** and H_(2)-TPR suggest that the improved carbon resistance of the nanoparticles is due to the better interaction and cooperation between NiO and CeO_(2) mixed *** nanoparticles,the participation of cerium cations in the redox processes taking place during DRM stabilizes cationic species of *** the contrary,the catalyst prepared without control of the size suffers segregation of Ni during DRM reaction,and segregated Ni explains the higher catalytic formation of carbon.

关键词： Methane dry reforming Nickel Ceria Nanoparticle Rare earths

Influence of the Molecular Weight on PVA/GO Composite Membranes for Fuel Cell Applications

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Journal of Renewable Materials 2020年第9期8卷 1171-1180页

作者： C.González-Guisasola O.Gil-castell R.Teruel-Juanes A.Ribes-Greus Instituto de Tecnología de Materiales(ITM) Universitat Politècnica de ValènciaValencia46022Spain Departament d’Enginyeria Química Universitat de ValènciaBurjassot46100Spain

Composite polymer electrolyte membranes were prepared with poly(vinyl alcohol)(PVA).Two different molecular weight(Mw),67·103 and 130·103 g·mol−1 were selected,cross-linked with sulfosuccinic acid(SSA)and doped graphene oxide(GO).The effects on the membranes obtained from these polymers were characterized in order to evaluate the fuel cell *** microscopy showed a proper nanoparticle distribution in the polymer *** chemical structure was evaluated by Fourier transform infrared *** absence of a crystalline structure and the enhancement on the thermal stability with the addition of 1%of GO was demonstrated by thermal *** transference number and protonic conductivity were correlated to the performance of a hydrogen fuel ***,a power increase in the composite membranes with lower molecular weight was *** polymer chains may improve protonic conductivity and consequently the fuel cell performance.

关键词： Fuel cell graphene oxide polarization poly(vinyl alcohol) polyelectrolyte

Functionalised Poly(Vinyl Alcohol)/Graphene Oxide as Polymer Composite Electrolyte Membranes

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Journal of Renewable Materials 2019年第7期7卷 655-665页

作者： O.Gil-castell R.Cerveró R.Teruel-Juanes J.D.Badia A.Ribes-Greus Instituto de Tecnología de Materiales(ITM) Universitat Politècnica de València(UPV)Camino de Vera s/nValenciaSpain Departament d’Enginyeria Química Escola Tècnica Superior d’EnginyeriaUniversitat de València(UV)Av.de la Universitat s/nBurjassotSpain

Crosslinked poly(vinyl alcohol)(PVA)based composite films were prepared as polyelectrolyte membranes for low temperature direct ethanol fuel cells(DEFC).The membranes were functionalised by means of the addition of graphene oxide(GO)and sulfonated graphene oxide(SGO)and crosslinked with sulfosuccinic acid(SSA).The chemical structure was corroborated and suitable thermal properties were *** the addition of GO and SGO slightly decreased the proton conductivity of the membranes,a significant reduction of the ethanol solution swelling and crossover was encountered,more relevant for those functionalised with *** general,the composite membranes were stable under simulated service *** addition of GO and SGO particles permitted to buffer the loss and almost retain similar proton conductivity than prior to *** membranes are alternative polyelectrolytes,which overcome current concerns of actual commercial membranes such as the high cost or the crossover phenomenon.

关键词： Direct ethanol fuel cell graphene oxide poly(vinyl alcohol) proton exchange membranes proton conductivity

A review of recent advances of kesterite thin films based on magnesium,iron and nickel for photovoltaic application:insights into synthesis,characterization and optoelectronic properties

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Clean Energy 2024年第2期8卷 217-238页

作者： Nelson Mauricio Espinel Pérez Enrique Vera López Jairo Alberto Gómez Cuaspud Juan Bautista Carda castelló Grupo de Investigación en Integridad y Evaluación de Materiales(GIEM).Instituto para la Investigación e Innovación en Ciencia y Tecnología de Materiales(INCITEMA).Universidad Pedagógica y Tecnológica de Colombia Av.Central del Norte 39-115.Tunja-BoyacáColombia Servicio Nacional de Aprendizaje(Sena).Centro Minero.Vereda MorcáSector Batá.Sogamoso-Boyacá Colombia Universidad Jaume I.Grupo de Química Inorgánica y Orgánica.castellón de la Plana Campus del Riu Sec.Castellón de la PlanaEspaña

This review emphasizes the recent advancements and prospects of thin-film kesterite-based photovoltaic(PV)applications using magnesium,iron and *** quest for novel materials employed in solar cells has resulted in incorporating these elements into the composition of kesterite as substitutes or modifiers(dopants)for *** integration has induced notable repercussions on the structural,optoelectronics and morphological properties,which are *** first section of this paper offers a comprehensive review of the general characteristics of kesterite *** crucial materials exhibit a high absorption coefficient(104 cm-1)and an optical band gap of 1.0-1.8 ***,they are free of critical raw materials,non-toxic and *** second section depicts the substitution or modification of zinc by magnesium in ***,this paper provides a comprehensive review of the quaternary and pentanary systems Cu_(2)MgSn(S,Se)_(4) and Cu_(2)Zn_(1-x)Mg_(x)SnS_(4),highlighting their advantages and *** the last section,a review of the quaternary or pentanary systems is conducted,namely Cu_(2)ZnxFe_(1-x)SnS_(4) and Cu_(2)ZnxNi_(1-x)SnS_(4),along with their effects on optoelectronic *** conclusion,various methods for obtaining modified or substituted kesterite materials using magnesium,iron and nickel have demonstrated sustainability,scalability for industrial production and potential candidacy as substitutes for conventional PV *** prospects for pentanary materials(Cu_(2)Zn_(1-x)Mg_(x)SnS_(4),Cu_(2)Zn_(1-x)FexSnS_(4) and Cu_(2)Zn_(1-x)NixSnS_(4))are to overcome the efficiency record of kesterite reported in 2014,which was 12.6%for Cu_(2)ZnSn(S,Se)_(4),and to enhance its optoelectronic properties through synthesis conditions that comply with the principles of green chemistry.

关键词： kesterite thin film magnesium iron nickel substitutes or modifiers novel materials sustainability

Highly graphitized carbon nanosheets with embedded Ni nanocrystals as anode for Li-ion batteries

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Nano Research 2020年第1期13卷 86-94页

作者： Francisco Javier Soler-Piña Celia Hernández-Rentero Alvaro Caballero Julián Morales Enrique Rodríguez-castellón Jesús Canales-Vázquez Dpto.Química Inorgánica e Ingeniería Química Instituto de Química Fina y NanoquímicaUniversidad de Córdoba14071CórdobaSpain Dpto.Química Inorgánica Cristalografía y MineralogíaFacultad de CienciasUniversidad de Málaga29071MálagaSpain Instituto de Energías Renovables Universidad de Castilla-La ManchaPaseo de La Investigación 102071AlbaceteSpain

A C/Ni composite was prepared via thermal decomposition of a nickel oleate complex at 700℃,yielding disperse Ni nanocrystals with an average size of 20 nm,encapsulated by carbon nanosheets as deduced from transmission electron microscopy(TEM)images and confirmed from X-ray photoelectron spectroscopy(XPS).Furthermore,the X-ray diffraction pattern revealed a good ordering of the carbon layers,forced by the Ni encapsulation to adopt a bending *** the close interaction between the graphitized framework and the metallic nanoparticles we have studied the properties of the composite as an anode for Li-ion *** with other nanostructured synthetic carbons,this carbon composite has a low voltage hysteresis and a modest irreversible capacity value,properties that play a significant role in its behaviour as electrodes in full cell *** moderate rate values,0.25 C,the electrode delivers an average capacity value around 723 mAh·g^−1 on cycling,among the highest values so far reported for this carbon *** higher rate values,1 C,the average capacity values delivered by the cell on cycling decrease,around 205 mAh·g^−1,but it maintains good capacity retention,a coulombic efficiency close to 100%after the first cycles and recovery of the capacity values when the rate is restored from 3 to 0.1 C.

关键词： carbon nanosheets nickel nanoparticles anode lithium batteries