晶格氧

钙钛矿型La0.8Sr0.2FeO3中的晶格氧用于甲烷选择氧化制取合成气

Selective Oxidation of Methane to Synthesis Gas Using Lattice Oxygen from Perovskite La_ 0.8 Sr_ 0.2 FeO_3 Catalyst

CH转化率的大小与固体表面材料晶格氧活泼性及其对CH4的吸附能力有关。

The conversion of CH_4 depends on the lattice oxygen activity and CH_4 adsorption ability of the surface materials .

TPD-质谱研究稀土氧化镨晶格氧及其与H2和CO的反应性能

Desorption and reactivity of lattice oxygen species in praseodymium oxide studied by tpd-mass spectroscopy

V2O5表面氧和晶格氧的热脱附性能

Thermal desorption properties of the surface and lattice oxygen of v_2o_5

Fe2O3中的晶格氧用于甲烷在熔融盐中的催化燃烧（Ⅰ）催化剂的制备及性能表征

Methane Combustion in Molten Salt Bath Using the Lattice Oxygen in Fe_2O Catalyst (ⅰ) Preparation and Characterizations of Fe_2O_3 Catalyst

催化剂在H2气氛下活化后，产生了有利于晶格氧传递的氧空缺，提高了NO和C3H6的催化转化活性。

Pretreatment in H2 increased the conversion of NO and propene by inducing oxygen vacancy , which would be favorable for the transportation of lattice oxygen species .

用无氧脉冲法发现La2O3之晶格氧不参与甲醇的氧化反应。

Investigation by pulse technique has shown that , ( 1 ) the lattice oxygen of La_2O_3 does not take part in the oxidation of CH_3OH .

结果表明：Fe2O3/SnO2膜表面，晶格氧的结合能为529.85eV，热处理前有大量吸附氧存在，在600℃退火后，大部分羟基、羰基形态的吸附氧解吸；

There are a lot of adsorbed oxygen on the surface of unannealed Fe2O3 / SnO2 bilayer and a few adsorbed oxygen left on the surface after annealing .

VPO催化剂的再生性质及其对晶格氧选择氧化丙烷的影响

Studies on Regeneration of VPO Catalyst for Selective Oxidation of Propane by Lattice Oxygen

通常，晶格氧参与主反应生成目的产物，气相或吸附氧导致（或主要导致）副反应生成有机副产物、COx和H2O。

Based on the general understanding , only surface lattice oxygen is responsible for selective reaction , while gas phase and adsorbed oxygen ( mainly ) provides for complete oxidation of the hydrocarbon to CO_x and H_2O .

结果表明：催化剂表面的选择氧化能够有效抑制深度产物CO2，CO的生成量，选择氧化的活性中心是催化剂表面的晶格氧。

The selective oxidation of isobutene over catalyst surface effectively controls deep oxidation products of isobutene such as carbon dioxide and carbon monoxide . The centers of active sites of selective oxidation are surface lattice oxygens .

这种处理的CuO催化剂活性高的原因是CO氧化催化机理为O2优先吸附反应机理，以及表面上形成的反应性活泼的与铜成键强度弱的晶格氧〔O2－〕。

It is found that the CO oxidation catalytic activity of the CuO catalysts increases and the Cu O bond strength weakens on treatment with pre reduction or reduction oxidation .

对于I类阳极Pt，当阳极电位大于2.0V时，除对氯苯酚的直接氧化反应外，晶格氧的氧化作用成为整个降解过程的主导因素；

For Pt anode (" I "), besides the direct oxidation of p-CP , oxygen transfer reaction was the main cause for the removal of p-CP when anodic potential was higher than 2.0 V ;

研究结果表明，Na-W-Mn/SiO2催化剂活化甲烷的活性氧物种是W和Mn提供的、高温下易于流动的表面晶格氧（O2-）。

The experimental results indicate that the active oxygen species over Na W Mn / SiO 2 catalysts for activating methane is the mobile surface lattice oxygen ( O 2 - ) supplied by tungsten and manganese oxides .

结果表明，FeAlPO催化剂呈非晶态，是具有均匀分布的超细粒子（10nm），其比表面积大（238m2/g），晶格氧活性高。

The results showed that the Fe-Al-P-O catalyst is non-crystal phase and well-distributed ultrafine particles ( 10 nm ), having a high specific surface area ( 238 m 2 / g ) and high lattice oxygen activity .

在XPS谱中，两类湿敏材料的O（1s）峰都是由晶格氧Ol和吸附氧Oa两峰构成。

In the XPS spectra , O ( 1s ) peaks of the two materials are both composed of two peaks of the lattice oxygen Ol and the adsorption oxygen Oa .

O2-TPD结果表明，掺杂Ru使催化剂表面的吸附氧和晶格氧脱附温度降低，A离子空位增加。

O 2-TPD results show that the temperature of adsorption oxygen and lattice oxygen decreased and the content of vacancy of oxygen increased .

甲醇在CeO2上容易吸附并结合其晶格氧生成甲酸盐物种，而甲醇分解的产物氢被Pd活化后，溢流到CeO2上促进了甲酸盐物种的分解。

It was found that the lattice oxygen of CeO 2 was active towards oxidation of the adsorbed methanol to form formate species , which were then reduced by the hydrogen produced and activated on Pd .

实验结果表明CH4分子的平动能和La2O3表面的晶格氧（O2－）是催化氧化CH4的两个关键因素。

The experiments show that the translation energy of methane molecule and the lattice oxygen ( O 2 - ) of La 2O 3 surface are two key factors for the catalysis .

用XPS技术对催化剂进行了测试，结果表明，催化剂表面上均存在着两类不同的表面氧种：晶格氧和吸附氧，且这两类表面氧种的相对含量与催化剂的活化方式有关。

XPS analytic results show that two distinct surface oxygen species are present over the catalysts , i.e. chemisorbed species and lattice oxygen species , moreover the relative amount of the two surface oxygen species is obviously different under the two activation modes .

采用脉冲反应器，研究了VPO催化剂的再生性质及其对晶格氧选择氧化丙烷制丙烯酸和乙酸的影响。

Studies on the regeneration of vanadium phosphorous oxides ( VPO ) catalyst for selective oxidation of propane to acrylic acid and acetic acid has been carried out using a pulse reactor .

掺杂适量的ZrO2能够提高催化剂的热稳定性和储氧能力，促进催化剂表面吸附氧向晶格氧的转化。

The addition of an appropriate quantity of ZrO_2 could improve thermal stability and oxygen storage capacity , enhance the absorbed oxygen transforming to surface lattice oxygen and facilitate the oxidation of CO simultaneously .

Fe2（MoO4）3中的Mo~（6+）吸附甲苯分子，反应时，钼酸铁的表面晶格氧和甲苯反应使之生成苯甲醛和水。

The molybdenum of Fe2 ( MoO4 ) 3 was in the form of Mo6 + , and could adsorb the molecule of toluene , and during reaction the lattice oxygen on Fe2 ( MoO4 ) 3 surface oxidized toluene to benzaldehyde and water .

Ce-Fe复合氧化物的加入，提高了复合VPO催化剂表面低温氧物种的活性，降低了晶格氧物种的TPR出峰温度；

The results of TPR show that Ce Fe complex oxides increase the activity of low temperature oxygen species on VPO surface , and decrease the TPR peak temperature of lattice oxygen .

OMS-2催化剂的晶格氧在醇类醛类氧化过程中起着重要作用，较高的晶格氧活泼性和含量有利于催化反应的进行。

Lattice oxygen played an important role in alcohol and aldehyde oxidation on OMS-2 catalysts . Facile accessibility and a high concentration of lattice oxygen benefited the oxidation process .

研究表明，低温下在γAl2O3上NO对SO2氧化吸附有促进作用，γAl2O3晶格氧直接参与了NO促进SO2氧化的反应。

The results show that , at a low temperature , NO can promote the oxidation adsorption of SO 2 over γ - Al 2O 3 , and that the lattice oxygen of γ - Al 2O 3 is directly taken part in the promotion reaction .

结果表明，溶胶-凝胶法制备的Fe-P-O催化剂为超细非晶态结构，粒子分布为10～20nm，其比表面、晶格氧的活泼性均大于共沉淀法制备的晶态Fe-P-O催化剂。

They gave a higher specific surface area and lattice oxygen activity than that of Fe P O catalyst prepared by the coprecipitation method .

而θ峰（脱附温度≥1023K）对应的氧物种为体相晶格氧，若该类O~（2-）脱附，会使结构坦塌。

The θ peak of species (≥ 1023K ) may be bulk lattice oxygen . If the last kind of oxygen species is desorbed , the structure collapses .

在氧载体恢复晶格氧的过程中，在1500s以前，空气中的O2都被氧载体所吸收，1500s以后，该过程排出气体中的O2体积分数开始上升，至2000s气体成分与空气的成分相同。

In addition , in the process of lattice oxygen recovery , all O_ 2 in air was absorbed before reaction time at 1500s . However , the volume concentration of O_ 2 increased between 1500s and 2000s .

从DTA-TG实验中观察到普通2212相和2223相失去晶格氧的量为0.8%，而含Tc>100K的2212相的样品失去晶格氧的量为～2%，说明这种2212相受氧含量影响更大。

It was also observed that weight loss of crystal oxygen of general 2212 phase and 2223 phase is about 0.8 % , but weight loss of crystal oxygen of sample for containing unusual 2212 phase is about 2 % .