Results 21 to 30 of about 1,201,119 (165)
Rare Metals, Volume 45, Issue 4, April 2026.ABSTRACT Piezocatalytic technology utilizes mechanical strain or stress‐induced piezoelectric phenomena to produce robust internal electric fields, markedly improving the separation efficiency of e−‐h+ pairs. This method has emerged as a focal point in catalysis by removing reliance on conventional light or electrical energy via its mechanical‐to ...
Yue Zhou +5 more
wiley +1 more source
Gongye shui chuli, 2011 采用光电催化氧化法降解季铵盐类杀菌剂十二烷基二甲基苄基氯化铵（1227）废水。以紫外灯为光源，DSA 电极为阳极，石墨电极为阴极，考察了阳极材料、光催化剂投加量、外加电场强度、极板间距、初始pH 对COD 去除率的影响。结果表明：光电催化氧化过程的最佳外加偏压为20 V，光催化剂最佳投加质量浓度为0.3 g/L，极板间距为0.5 cm，pH 为8.27，反应3 h 后1227 废水的COD 去除率可达到87%，TOC 去除率达到92%。光电催化氧化法的降解率高于单纯的光催化氧化和电催化氧化降解率之和 ...
王晓囡, 滕厚开, 谢陈鑫, 赵慧
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
Gongye shui chuli, 2009 采用溶胶凝胶技术制备电气石/TiO2复合光催化材料,研究其光催化反应体系中的溶解氧含量、水分子团结构等,并结合光催化降解甲基橙实验对光催化反应机理进行了初探。研究表明,随着电气石/TiO2复合光催化材料质量分数的增加,反应体系中溶解氧含量的增长速度明显加快,但溶解氧含量的饱和值十分接近,均在8.15mg/L附近。同时,电气石/TiO2复合光催化材料的质量分数为0.1%时,静置2h后的水样峰宽由93.
冯艳文, 张青, 朱华静
doaj
Gongye shui chuli, 2022 通过溶胶-凝胶法制备了颗粒活性炭（GAC）负载过渡金属和氮元素共掺杂改性的TiO2（X-N-TiO2/GAC，X=Fe或Cu或Mn），以光电协同催化处理甲基橙废水。阳极为铱钽钛板，阴极为钛板，长弧氙灯作光源，以20 mg/L模拟甲基橙废水在180 min时的降解率为评价指标，优化材料的制备条件和反应电压，并进行SEM和XRD表征。结果表明，锐钛矿型改性TiO2成功负载到GAC表面，溶胶-凝胶法的负载效果良好，掺杂均匀。在过渡金属离子掺杂方面，与Cu-N-TiO2/AC和Mn-N-TiO2/AC相比，Fe-
张黎, 王春昊, 黄殿男, 张磊
doaj
A Review on Cu‐Based Catalysts for Dehydrogenation of Chemical Hydrides
Rare Metals, Volume 45, Issue 4, April 2026.ABSTRACT Hydrogen (H2) plays a crucial part in the building of clean and sustainable energy systems due to its advantages of being renewable, clean, and pollution‐free. Nevertheless, the secure and effective production‐storage‐transportation of H2 presents critical challenges.
Yixing Luo +6 more
wiley +1 more source
Gongye shui chuli, 1997 简述了半导体光催化氧化法的原理。概述了光催化氧化从分散相到固定相的发展及提高催化剂活性的方法。提出了光催化氧化法与电化学的结合--电化学辅助光催化氧化技术，它是一项新型的污水处理技术。
刘正宝, 姚清照
doaj
Rare Metals, Volume 45, Issue 4, April 2026.ABSTRACT Formic acid (FA) is considered to be a safe and convenient hydrogen source; however, achieving controlled and efficient FA dehydrogenation under mild conditions using stable solid catalysts remains a significant challenge. Pd‐based catalysts have been extensively studied due to their superior catalytic activity to other metal catalysts.
Shuai Wei +10 more
wiley +1 more source
, 2004 采用溶胶凝胶烧结工艺在玻璃表面制备铅离子多层掺杂的光催化复合TiO2薄膜，用XRD技术表征了该薄膜的晶型，并用电化学方法测定了该薄膜电极的伏安特性及交流阻抗性能．以光催化降解甲基橙溶液为模型反应，采用两种不同方式制备的铅离子多层掺杂TiO2薄膜具有很好的光催化活性，最佳掺杂浓度均为0．5％(Pb／Ti原子百分比)，PbD0.5掺铅薄膜的最佳光催化降解甲基橙表观速率常数约是纯TiO2的2．52倍．铅离子掺杂TiO2薄膜表现出近表面处捕获光生电子或空穴 ...
古国榜, 李新军, 于书平
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Rare Metals, Volume 45, Issue 3, March 2026.ABSTRACT Low conductivity, slow ion‐diffusion, and limited reactive sites are common problems in electrocatalysts and electrode materials. In this study, a complex NiTe–CoTe heterojunction with abundant Te vacancies embedded in N, P, and F co‐doped hollow carbon nanorods (NiTe1−x–CoTe1−x/NPFC) was fabricated via a simple ionic liquid‐assisted ...
Mingjie Yi +7 more
wiley +1 more source