简介：Theadsorptionisothermsofcaffeinefromaqueoussolutionontothreehydrogendonatingadsorbents-hydroxypolystyrene,polystryene-azo-pyrogallol,andD72resin-weremeasured.TheadsorptionenthalpiescalculatedfromtheisothermsaccordingtotheClausisu-Clapeyronequationwere-24-36kJ/mol,-32-37kJ/mol,and-19-24kJ/molrespectively.Thesevaluesimpliedthattheadsorptionprocesseswerebasedonhydrogenbonding.Furthermore.themechanismoftheadsorptionofcaffeineontoD72resinwasstudiedbyIRspectraandthesmallmolecularmodelexperiments,andtheresultsshowedthattheadsorptionofcaffeineontohydrogendonatingadsorbentswasbasedonhydrogenbonding.

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简介：ThehydrogenstoragepropertiesofTi1.2Fe+xCa(x=1%,3%and5%inmassfraction)alloyswasinvestigated.ResultsshowthatthemodifiedalloyscanbeactivatedwithoutanythermaltreatmentatroomtemperatureduetotheadditionofCaandexcessTiinthealloys.HydrogenstoragepropertiesofthesemodifiedalloysvarywithCaamountandreactiontemperature.Inaddition,theinfluencemechanismoftheadditionofCaandexcessiveTiontheactivationbehaviorandhydrogenstoragecapacityofthealloyswasdiscussed.

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简介：HydrogenabsorptionsofLaFe11.5Si1.5compoundin1-atmhydrogengasatdifferenttemperaturesareinvestigated.Thehydrogencontentinthehydrogenatedsampledoesnotincreasewiththeincreaseoftemperatureofhydrogenabsorptionbutchangescomplicatedly.Thecharacteristicoffirst-ordertransitioninLaFe11.5Si1.5compoundisweakenedafterhydrogenabsorption.Itleadsthepeaksofmagneticentropytobecomewiderandthehysteresislosstoreducesignificantly,butrelativecoolingpower(RCP)isnotchangedconsiderably.

简介：为高coercivityNdDyFeCoNbCuBsintered体积磁铁的氢吸收和解吸附作用特征被学习，由微分扫描热量测定(DSC)测量和加氢动力学测量。DSC大小证明Nd富有的阶段的加氢发生在40185戠瑵眠瑩?畦瑲敨?湩牣慥敳漠?慌挠湯整瑮?桴?慭潪?桰獡?景琠敨愠?慣瑳愠汬祯?档湡敧?的温度范围湩潴?乡????瀠慨敳?桔牥慭?瑳'L汩瑩?景琠敨愠?灳湵愠汬祯?慷?瑳摵敩?祢搠晩敦敲瑮慩?諟熻鷸{挠污牯浩瑥祲?卄??桳睯湩?桴瑡猠楰湮湩?慲整眠獡愠渠来楬楧汢?慦瑣牯漠?桴?牣獹慴汬穩瑡潩?整灭牥瑡牵?景琠敨愠潭灲潨獵瀠慨敳?桔?票牤杯湥愠獢牯瑰潩?湡?敤潳灲楴湯欠湩瑥捩?景琠敨愠?慣瑳愠摮愠?灳湵愠汬祯?敷敲洠慥?敲?獵湩?湡愠瑵浯瑡捩污祬挠湯牴汯敬摥琠敨猠牵慦散漠?污浵湩浵愠汬祯挠浯汰瑥汥?楷桴湩猠潨瑲瀠潨灳慨楴杮琠浩？

简介：原则，设计，构造和表演安培计并且为通过金属设备的墙测量氢的浸透率的potentiometric传感器被调查以便与高精确性开发氢传感器的一种新类型。在一个给定的收费条件下面的氢浸透的短暂曲线被采用评估氢传感器的二种类型的表演。在一样的条件下面与传感器的二种类型检测的氢集中的相对偏差从3.0%～13%变化了。精确性，反应时间，重制度，和安装被讨论并且比较。potentiometric传感器(电子传感器)的反应时间比安培计的传感器(我传感器)的短。传感器的两种类型展出了好重制度。由包含高电的电导率和强壮的粘附的二功能的一种质子导体粘合剂或非液体电解质组成的我传感器的开发将是有希望的前景以便在高温度测量氢浸透。

简介：在铝的氢内容融化在不同温度被检测。在铝的结构融化被分子的动力学调查模拟。关联功能，原子协作数字和铝的粘性融化的对的第一个山峰位置在一样的温度范围反常地被计算，他们变化了。氢吸收的机制被讨论了。从分子的动力学计算，互相依赖在之间融化结构的性质和氢吸收被获得。

简介：Ultrasonicattenuationinliquidhydrogenhasbeenmessuredwiththepulse-echotechniqueasafunctionoftemperaturefrom13.84Kto20.50K,at45MHz.Theresultsindicatethatthetemperaturedependenceofultrasonicattenuationinliquidhydrogenismainlydeterminedbyvolumeviscosityeffect.Ultrasonicattenuatinduetovolumeviscosityisgettingmoreandmorewithcooling.Theratiobetweenvolumeviscouscoefficientandshearviscouscoefficientisfrom1.4to4.2withinthemeasuredtempera-tureregion.

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简介：关于常规石块的普遍使用的有害效果增强担心一般来说在海洋的领域里并且在内燃机造成，导致了努力并且向研究指导大大写的投资的广阔数量，持续其他的精力的开发采购原料。最答应之一并且这些来源丰富是氢。第一，当前的石块燃料的使用被讨论集中于排出物和经济方面作为一种合适的可能的选择与氢的特别参考为新、更干净、可更新的燃料强调需要。氢性质，生产和存储方法然后从节俭的观点与它的适用性一起被考察。最后，为在内燃机的氢的使用的费用分析被执行为柴油机作为代替说明它的使用的好处。这的结果花费了98%大写的开销被设备消费的分析表演，并且设备的68.3%全部的费用在太阳的光电的房间上被花。因为它是大约10亿的高起始的费用，氢植物作为一个大投资工程被分类US$；但是因为氢以一个完全绿的方法被生产，这被认为正当。当氢被用作燃料时，没有有害排出物被获得。

简介：I.StatusofChineseREHydrogenStorageAlloys1.R&DofREHydrogenStorageAlloysinChinaAB5hydrogenstoragematerials,takingrareearthmischmetalsasrawmaterials,developedrapidlyinChinainrecentyears.Today,differentcountriesattachimportancetothedevelopmentandapplicationofthenewenvironmental

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简介：2.CharactersofNiMHpowerbatteryandrequirementsonnegativeelectrodehydrogenstoragematerialsIncontrastwithordinarysmallNiMHbattery,NiMHpowerbatteryforautosworksinthemoreharshconditions.Hence,requirementsonthecomprehensiveperformancesofNiMHpowerbatteryarestrict.MaindifferencesbetweenNiMHpowerbatteryandordinaryNiMHbatteryinclude:

简介：Theeffectofhydrogenpassivationonmulticrystallinesilicon(mc-Si)usedforsolarcellsisdescribed,andthemechanismofhydrogendiffusionandpassivationisalsoinvestigated.Then,thehydrogenpassivationprocessesappliedinindustriesandresearchlaboratoriesareintroduced.Finallytheexistingproblemsandtheprospectsofhydrogenpassivationarereviewed.

简介：Itiswellknownthatvanadiumalloywillfacetostrongneutronirradiationandhydrogenenvironmentsasastructuralmaterialinafusionreactor.Someresearcheshavereportedthatvanadiumalloytookstronglyhardeningafteranexposuretohydrogenenvironmentandirradiationbyneutronatatemperaturelowerthan400℃.Theductilityofthealloywaslostlargely,evenentirelybrittlefractureoccurredsometimesintensionloadingofthealloy.Therefore,it'stogettheknowledgeofthehardeningmechanismandthefracturemechanicalforthepurposetoimprovetheperformancesofthealloyunderthecircumstances.

简介：Basedonthetheoryofthepassivehydrogenmaser,alongwiththetechnologyoffrequencymodulationandmodulationtransferspectroscopy,thetheoreticalexpressionofthesinglefrequencymodulationforthepassivehydrogenmaserandthefunctionofthecavityandHlineerrorsignalsseparationarederived,whicharebasicallycoincidentwiththeexperiment.Theabsorptionanddispersionspectrumcurveswithdifferentresonancewidthsshowthatthecavityandhydrogentransitionserveasdiscriminators,andthetwoerrorsignalscanbeseparated.Throughthecalculationsofthetwoerrorsignalsinthepassivehydrogenmaser,itanalyzesthetraditionalmethodofthetwoerrorsignalsseparation,andthendescribesanewimprovedmethodforthepassivehydrogenservoloopsconsistingintheuseofasinglemodulationfrequencyandfrequencydiscrimination.Anullinteractionofthetwoerrorsignalsforthenewselectionofthephasesettingisdeducedtheoreticallyandvalidatedbythesimulation.Thepreliminaryexperimentalresultconfirmsthefeasibilityofthisnewapproach,whichcanreducetheinfluencefromthecavityfrequencyvarietyonthecrystaloscillatorandcontributesignificantlytothelongtermperformanceofthepassivehydrogenmaser.

简介：Afteraconciseintroductionofhydrogenbondingeffectsinsolute-soluteandsolute-solventbonding,thedesignofpolymericadsorbentsbasedonhydrogenbonding,selectivityinadsorptionthroughhydrogenbonding,andcharacterizationofhydrogenbondinginadsorptionandseparationwerereviewedwith28references.

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