Question

谁帮我翻译下面一段英文文献！非常感谢！！1

Catalysts were prepared by impregnation of _-Al2O3, La RocheVersal TD250 (BET surface area 233m2/g after calcination at 1073K for 6 h) with a solution of rare earth nitrates (Ce(NO3)3•6H2O, Aldrich 99.99%, Pr(NO3)3•6H2O,and Tb(NO3)3•5H2O, Aldrich 99.9%) to obtain a support doped with 0–25 wt.% of rare earth oxides (REO) (weight percentage was calculated assuming REO is CeO2, Tb4O7 and Pr6O11). After impregnation, the samples were dried overnight at 393K and calcined at 1073K (fresh support). The fresh supports were then calcined at temperatures in the
range of 1273–1473K for 6 h. Supports containing 15 wt.% of REO were impregnated with a solution of Pd(NO3)2 (Aldrich) to obtain a catalyst with a nominal Pd loading of 10 wt.%. Catalysts containing Pd were dried overnight at 393K and calcined at 1073K for 6 h. Temperature programmed combustion experiments (TPC) were carried out in a quartz tubular reactor (i.d.: 6 mm,l: 300 mm) with a gas hourly space velocity (GHSV) of 180 000 h−1 and a gas flow composition of 0.5 vol.% CH4, 2 vol.% O2 in He; total flowrate was 0.18 l/min. The gas apparatus consisted of three mass flow controllers which supplied reaction gases to the reactor; upstream of reactor a gas scrubber was positioned in order to ensure complete gas mixing. The powdered catalyst was loaded after being pressed and sieved (50 _m < Ø < 100 _m) and supported in the reactor on a quartz-wool bed. The sample was heated
up to 1173K at a heating rate of 10 K/min then cooled to room temperature. Downstream of reactor the measurements of product concentration were carried out with an on-line mass spectrometer (Hyden Analytical).

Answer 1

人物是由impregnation_-al2o3的、rocheversaltd250(赌面积233m2/Gcalcination1073k后在6H)解决方案的难得人间nitrates(行政(no3)36h2o，奥尔德里奇99。99，公关(no3)36h2o，结核病(no3)35h2o，奥尔德里奇99。9)获得的支持和0中

Answer 2

催化剂是被_-Al2O3固定唱法时之 A 音 RocheVersal TD250 BET 表面区域233m2/g的怀孕准备，在1073K的为6 h 的有一稀土在中的溶液的煅烧用硝酸处理 Ce NO3 3•6H2O Aldrich 99.99% Pr NO3 3•6H2O和 Tb NO3 之后3•5H2O Aldrich 99.9%，为得到用0C25 wt.% 给稀土氧化物 REO 的 a) 技术支持吃迷幻药的加上的重量平衡百分比是是精心设计认为 REO 是 CeO2 Tb4O7 和 Pr6O11在怀孕以后样品是被在393K整夜弄干和在1073K煅烧新技术支持新技术支持是那时被在温度方面煅烧在中 1273C1473K的为6 h 的范围。含有15 wt.% 的 REO 的支持被用一 Pd(NO3）2(Aldrich）用一微不足道 Pd 为得到一催化剂装载的10 wt.% 的在中的溶液使渗透。被为6 h 在393K整夜弄干含有 Pd 的催化剂和在1073K煅烧。温度为编制程序燃烧试验(TPC）在一个石英管的起反应的人身上被实行 i.d。6毫米,l：有一180 000 h−1 的气体每小时空间速度(GHSV）和一个0.5卷%CH4,2卷%O2 的气体流动成分的300毫米进入他；总 flowrate 是0.18 l/分钟。气体装置由为提供对起反应的人反作用气体的三个主体流动审计员构成；逆流地起反应的人的一个气体擦洗者被安放与混合，为了保证能得到完整气体。撒有粉的催化剂被装载，在被敦促和筛之后50_m<Ø；<100_m和在一个石英羊毛床上的起反应的人身上支撑。样品是是激烈在一10 K 的暖气速度方面的向上的移动向1173K那时分钟向室温使冷下来。顺流地起反应的人的产品集中的度量被用一支联机主体分光计实行(Hyden 分析的）。