Results 21 to 30 of about 1,555,927 (98)
Rare Metals, Volume 45, Issue 11, November 2026.ABSTRACT Bismuth vanadate (BiVO4) has emerged as a promising photoanode for photoelectrochemical (PEC) water splitting, but its efficiency is severely limited by rapid charge recombination and sluggish water oxidation kinetics. Herein, we demonstrated that depositing an amorphous nickel‐iron phosphate (NiFePOx) layer on BiVO4 could promote the surface ...
Li Xu +10 more
wiley +1 more source
Gongye shui chuli, 2005 采用溶胶-凝胶方法,经过数次浸渍制备成负载型纳米TiO2光催化剂,研究光催化氧化降解酸性玫瑰红B(简写为AR)。考察了浸渍次数和煅烧温度对光催化活性的影响,表明浸渍3次和煅烧温度为550℃时催化剂的活性最好。研究了掺杂镧的催化剂活性并与P25作了比较,掺杂镧后,催化剂活性明显提高,光催化活性比P25高出13.5%。同时进行了负载型TiO2/硅胶的动力学研究,表明光催化降解AR过程符合伪一级反应动力学模型。
杨玉旺 +6 more
doaj +2 more sources
Rare Metals, Volume 45, Issue 11, November 2026.ABSTRACT In this study, we developed a novel photothermal fluidized bed (PTFB) for the fabrication of Pd‐CeO2‐TiO2 nanoparticles modified on 13X molecular sieves (PCT@13X). 13X powder impregnated with hydroxides and H2O2 was used as the precursor for PTFB preparation.
Liangzhuan Wu +7 more
wiley +1 more source
Rare Metals, Volume 45, Issue 11, November 2026.ABSTRACT The high‐value conversion of biomass platform molecules is a key pathway for substituting fossil resources with renewables and promoting sustainable green chemical manufacturing. However, conventional thermocatalytic processes suffer from harsh reaction conditions, high energy consumption, and poor selectivity, whereas photocatalysis enables ...
Tingting Dong +4 more
wiley +1 more source
Progress and Future Prospect of Electrolyte Additives in Aqueous Zinc‐Ion Battery
Rare Metals, Volume 45, Issue 11, November 2026.ABSTRACT Aqueous zinc‐ion batteries (AZIBs) have been regarded as a strong candidate for a new generation of electrochemical energy storage systems because of their high safety, environmental friendliness, low cost and relatively high energy density. However, there are still many challenges for practical application, especially the uncontrolled growth ...
You‐Cun Bai +2 more
wiley +1 more source
Rare Metals, Volume 45, Issue 10, October 2026.ABSTRACT Improving the efficiency and stability of oxygen evolution electrocatalysts remains essential for advancing water splitting technologies. Although in situ surface reconstruction into active phases is desirable, it often leads to uncontrolled structural degradation.
Beirong Ye +11 more
wiley +1 more source
四川大学学报. 自然科学版, 2008 以石油焦为原料,浓硫酸为磺化剂,通过磺化反应制得了磺化石油焦新型酸催化剂.在乙酸乙酯的合成反应中考察了该催化剂的催化活性.结果表明:在优化条件下(反应温度90℃,反应时间2.5 h,催化剂0.5 g,乙酸0.15 mol,醇酸摩尔比1.5∶1,环己烷10 mL),酯化率可达96.2%.与K2641强酸性阳离子交换树脂相比,磺化石油焦酸催化剂表现出较高的催化活性,循环使用5次后,催化剂活性基本保持不变.
李峰峰 +5 more
doaj
Gongye shui chuli, 2022 在高效催化臭氧氧化煤化工废水过程中，水中的硅酸盐会使催化剂失活。本研究以ZSM-5分子筛为载体，使用等体积浸渍的方法成功制备了一系列抗硅催化剂，考察了活性组分种类、前驱体盐溶液种类、焙烧温度和活性组分负载量等相关工艺参数对催化剂抗硅性能和催化臭氧氧化降解含硅间甲酚模型废水效果的影响，并对抗硅催化剂进行了表征分析。结果表明，ZSM-5分子筛以Fe（NO3）3·9H2O作为前驱体盐浸渍，500 ℃焙烧，活性组分Fe负载量为3%（质量分数）时的抗硅催化剂呈现出优异的空间结构 ...
陈晓飞 +5 more
doaj
Rare Metals, Volume 45, Issue 10, October 2026.ABSTRACT Lithium‐rich manganese‐based cathodes (LRM) deliver high discharge capacities beyond 250 mAh g−1, but their practical deployment is restricted by irreversible oxygen redox, structural reconstruction, sluggish kinetics and unstable cathode‐electrolyte interfaces (CEI). Here, we develop a colloid‐assisted anchoring‐diffusion engineering strategy
Jia‐Nan Hao +13 more
wiley +1 more source
, 2004 一种用于直接选择氧化邻甲酚的催化剂，其载体为活性氧化铝、活性炭、多孔硅胶或氧化锆；其活性组分中主剂为钴或/和锰，助剂为银、铁、镍、锌和铈中的一种或几种。其中活性组分的含量按氧化物计为催化剂载体质量的7-11％，活性组分中钴与锰的摩尔比为0∶5-5∶0，助剂与活性组分总量的摩尔比为0-60∶100。将活性组分与助剂水溶液混合后，加入有机或无机化合物为添加剂，经过浸渍、烘干和焙烧得到选择氧化催化剂。在该催化剂的作用下，以氧气或空气为氧化剂，催化选择氧化邻甲酚合成水杨醛(醇)。与其它方法相比较 ...
徐杰, 王峰
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