Results 31 to 40 of about 1,260,898 (152)
Gongye shui chuli催化臭氧氧化技术在深度处理含酚有机废水方面具有操作简单、氧化效率高、二次污染小等优点。然而，其规模化应用依赖于开发高活性和高稳定性的非均相催化剂。介绍了催化臭氧氧化技术中非均相催化臭氧氧化反应机理。从非负载型和负载型催化剂两方面综述了催化臭氧氧化酚类化合物非均相催化剂的研究现状，重点分析了非负载型催化剂、单活性组分负载型催化剂及多组分负载型催化剂的特点及局限性，指出多组分负载型催化剂由于具有显著提升臭氧利用率、降低臭氧投放量，以及性能可优化潜力大等优势，是当前主要研究对象。针对高效催化剂开发 ...
夏龙祥, 何昊东, 吴登峰
doaj +2 more sources
Zhejiang Daxue xuebao. Lixue ban, 2023 挥发性有机废气（volatile organic compounds，VOCs）的大量排放对环境造成了严重危害，催化燃烧是去除VOCs的有效方法之一。使用简单且环保的催化剂制备方法一直是催化燃烧中催化剂研究的重点与难点之一。以CeO2，Al2O3，La2O3和ZrO2等氧化物以及相应的氢氧化物为载体前驱体，采用球磨法制备了一系列负载型Cu基催化剂，比较了不同氧化物和相应氢氧化物载体前驱体对乙酸乙酯（ethyl acetate，EA）催化燃烧性能的影响，并用XRD、TEM、XPS和H2 ...
陈韩(CHEN Han) +8 more
doaj +1 more source
Research Progress and Prospect of Single‐Atom Materials in Tumor Catalytic Therapy
Rare Metals, Volume 45, Issue 9, September 2026.ABSTRACT Tumor catalytic therapy (TCT), an emerging therapeutic modality, exerts specific cytotoxic effects on tumor cells by catalyzing endogenous substances within the tumor microenvironment (TME)—including hydrogen peroxide (H2O2), glucose, and glutathione—to generate reactive oxygen species (ROS) or deplete protective biomolecules.
Youyu Wang +4 more
wiley +1 more source
Rare Metals, Volume 45, Issue 9, September 2026.ABSTRACT Two‐dimensional Mn‐based MBenes remain challenging to synthesize due to structural instability during etching. Herein, Mn2AlB2 was employed as a precursor to systematically investigate Al removal via HF, NaOH, and a gas–solid route using PVDF‐derived HF.
Tao Zhong +6 more
wiley +1 more source
Rare Metals, Volume 45, Issue 9, September 2026.ABSTRACT Currently, the photocatalytic performance of ZnO has been severely limited by its weak light response ability and sluggish charge carrier dynamics, which considerably hinder its extensive application in photocatalytic fields. Herein, through anchoring the synthesized K6PMo11FeO40·nH2O (PMo11Fe) onto ZnO nanosheets, a novel S‐scheme ...
Xinjia Zhang +8 more
wiley +1 more source
Rare Metals, Volume 45, Issue 9, September 2026.ABSTRACT Lignin hydrogenolysis is a promising route to separable aromatic monomers, yet practical upgrading is still hindered by macromolecular mass‐transfer limitations and the aggregation/deactivation of metal sites. Herein, we propose a “dual‐confinement” strategy to construct ultrafine Ru nanoclusters supported on lignin‐based N‐doped hierarchical ...
Tianjin Li +11 more
wiley +1 more source
, 1990 非贵金属蜂窝陶瓷催化剂，用于汽车排气净化。蜂窝陶瓷涂有双层孔结构，改性的Ａｌ2Ｏ3作为催化剂的载体，催化剂的活性是铁的氧化物及由钴、镍、锰、铜，铬元素的氧化物和稀土铈或含有铈元素＞３５％的混和稀土元素的氧化物，本发明催化剂其耐热稳定性好，氧化铝涂层不易脱落，即使在较高温的使用条件下催化剂也具有较长的寿命 ...
李北芦, 李时瑶
core
Rare Metals, Volume 45, Issue 9, September 2026.ABSTRACT Platinum‐based electrocatalysts are fundamentally constrained by strong oxygen binding, which restricts the oxygen reduction reaction (ORR) kinetics, and by severe CO poisoning, which hinders the methanol oxidation reaction (MOR). To address these limitations, we synthesized PdPtRuIrRhNi high‐entropy alloy (HEA) mesoporous nanotubes that ...
Hong Pan +6 more
wiley +1 more source
, 2001 一种脱砷催化剂，其特征在于：以炭作催化剂载体；催化剂的活性组份包括：Fe、Co、Ni等元素周期表中的第Ⅷ族元素之一种或多种；Cr、Mo、W、Mn、Ti等过渡金属元素之一种或多种；Li、Na、K、Mg、Ca等碱金属或碱土金属元素之一种或多种；La、Ce等稀土元素之一种或多种。本发明催化剂可以解决乙烯原料油的脱砷问题，其具有高的机械强度，较长的使用寿命，较大的砷容量 ...
周焕文, 高进, 徐杰
core
Rare Metals, Volume 45, Issue 8, August 2026.ABSTRACT To address critical issues in lithium–sulfur batteries, such as slow polysulfide conversion kinetics and shuttle effects, we designed and synthesized a high‐performance nanoalloy catalyst through a defect reconstruction strategy, aiming to enhance the electrochemical performance of batteries.
Zhijun Zhao +10 more
wiley +1 more source