Results 31 to 40 of about 1,612,123 (209)
Zhejiang Daxue xuebao. Lixue ban, 2002 以Ce(NO3)3·6H2O和Zr(NO3)4·5H2O为原料,采用共沉淀法,合成了高比表面积的Ce-Zr-O复合氧化物.实验结果表明表面活性剂的添加量, 溶液的pH值及陈化时间等对比表面积的增加影响较大.当表面活性剂的添加量为70%, pH值为9.5, 陈化时间为120 h, 923 K焙烧2 h后, 样品的比表面积达到279.69 m2/g.FT-IR分析显示, 样品经923 K焙烧后,Ce-Zr-O上残留的活性剂已基本除去.
JIANGXiao-yuan(蒋晓原) +5 more
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Rare Metals, Volume 45, Issue 4, April 2026.ABSTRACT Diabetic wound infections are a common complication of diabetes, which severely impact patients' quality of life. Effective treatment of diabetic wound infections remains one major challenge in the clinic, partially due to the formation of bacterial biofilm and antibiotic resistance.
Liang Zhou +8 more
wiley +1 more source
Study on gas-liquid mass transfer of toluene in an emulsion liquid membrane(甲苯在乳化液膜中的气液传质研究)
Zhejiang Daxue xuebao. Lixue ban, 2011 研究了温度、液相搅拌速度、表面活性剂体积分数等因素对乳化液膜吸收甲苯气体的气液传质影响，实验发现甲苯在乳化液膜体系中的气液传质系数随着温度的上升而增大，随液相搅拌速度的增大而增大；表面活性剂会增大气液传质阻力，减小气液传质系数，表面活性剂体积分数2%时对甲苯气液传质产生的阻力占总传质阻力的31.9%.
CHENGJi(程吉) +2 more
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Rare Metals, Volume 45, Issue 4, April 2026.ABSTRACT Thermally driven hydrogenation of CO2 to light olefins (C2=–C4=) using metal oxide‐zeolite tandem catalysts is an effective strategy for achieving carbon neutrality. However, progress in this area is constrained by zeolite pore transport limitations, acid‐site inactivation, and surface carbon poisoning.
Haifeng Tian +10 more
wiley +1 more source
四川大学学报. 自然科学版, 2010 以芘（Py）为荧光探针,氯化十六烷基吡啶（CPC）为猝灭剂,芘的饱和水溶液为溶剂配制的新型二聚季铵盐表面活性剂溶液,根据芘的荧光强度比(I373/I383)随表面活性剂水溶液浓度的变化而变化,用稳态荧光探针法测定了该二聚季铵盐表面活性剂的临界胶束浓度（cmc）、胶束聚集数（N）.结果表明,在25℃时该二聚季铵盐表面活性剂的cmc为0.711 mmol·L-1,与用表面张力法测定的结果基本一致.在猝灭剂氯化十六烷基吡啶浓度为0.16～0.24mmol·L-1（25 ...
胡元, 梁麟霖, 刘凡, 汤毅
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Rare Metals, Volume 45, Issue 4, April 2026.ABSTRACT To address the issues of aluminum (Al) powder agglomeration during combustion and low oxidizer decomposition efficiency in composite solid propellants, this study utilized in situ self‐assembly technology to prepare cobalt‐based hybrid‐coated modified Al powder (Al@CZ).
Chong Chen +11 more
wiley +1 more source
, 2018 一、项目简介烷基糖苷(APG)是新一代环境友好绿色表面活性剂,其生产所需原料是可再生的自然资源淀粉(或葡萄糖)和脂肪醇。APG虽属于非离子型表面活性剂,但还同时具有阴离子表面活性剂的特征,与其它种类的表面活性剂复配使用时增效作用十分明显,是最优秀的一类新型表面活性剂之一。APG具有优良的表面活性、去污力强、复配性能极佳、无毒 ...
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Gongye shui chuli, 2000 用表面活性剂为洗脱剂,做丙纶纤维脱油再生方面的定性定量研究,当用阴离子型PT活性剂/NaCl或NaOH/水=01～10g/20g或15g/100g比例配方时,纤维表面残留油量在13mg/g纤维以下,洗净率达99%以上。并从理论上探讨了PT活性剂从纤维表面除油污的过程机理。
武哲, 刘凡清, 郗丽娟, 谢世权
doaj
Rare Metals, Volume 45, Issue 4, April 2026.ABSTRACT Metal oxide‐based catalysts for oxygen reduction reaction (ORR) have drawn great attention in recent years. However, it remains technically challenging for the precise regulation of the overall performance due to the trade‐off effect among the activity, selectivity, and stability of electrocatalysts. Herein, a balancing strategy to control the
Haoran Ma +7 more
wiley +1 more source
四川大学学报. 自然科学版, 1998 应用１．５级反应的热动力学时间变量法，研究了阳、阴、非、两性离子表面活性剂胶束溶液中ＮａＨＳＯ３为单组分引发剂的丙烯酰胺聚合反应．结果表明，离子型（ＣＴＡＢ，ＴＴＡＢ，ＤＴＡＢ，ＳＤＳ）和两性型表面活性剂（ＳＬＳ）对该聚合反应有催化作用，非离子型表面活性剂（Ｂｒｉｊ３５）对该反应有微弱禁阻作用．这些作用是由于表面活性剂影响了引发剂生成自由基的反应，与胶束Ｓｔｅｒｎ层对ＨＳＯ－３的影响有关，而与胶束内部结构无关．
陈民助 +5 more
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