Results 1 to 10 of about 3,032 (108)
Gongye shui chuli, 2022 在没有NO2-或短程硝化的情况下，厌氧氨氧化菌（AnAOB）可以微生物电解池（MECs）的阳极为电子受体氧化NH4+-N，这种电极驱动型厌氧氨氧化（E-Anammox）可有效解决传统厌氧氨氧化（Anammox）电子受体NO2-供给不稳定的问题。但MECs系统常用的铁阳极易发生腐蚀板结，导致电极导电能力下降、电子利用率降低。针对铁阳极易腐蚀的问题，对普通铁阳极进行包覆改性制备改性铁阳极，将改性铁阳极和普通铁阳极分别与MECs系统耦合加载于Anammox反应体系中，考察了2个反应体系中氨氧化、系统阻抗值 ...
施亚雯 +6 more
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Gongye shui chuli, 2022 阳极氧化技术作为最简单的高级氧化技术，可有效去除水中残留的除草剂等持久性有机污染物。利用硼掺杂金刚石（BDD）电极作为阳极构建了阳极氧化体系，研究了电解质种类、浓度和电流密度等参数对BDD阳极降解三嗪类除草剂阿特拉津效能的影响规律，并利用UPLC-MS/MS对阿特拉津的降解产物进行了定性分析。结果表明，在NaCl投加量为0.05 mol/L和电流密度为12 mA/cm2时，处理90 min后，BDD阳极基本可实现对阿特拉津的完全去除；处理300 min后，阿特拉津的矿化率可达（56±2.4 ...
贾伟建 +3 more
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Zhejiang Daxue xuebao. Lixue ban, 2015 采用阳极氧化技术对不锈钢丝网表面进行修饰，成功制备了ZSM-5分子筛膜.通过XRD、SEM等技术对合成的材料进行表征，并考察了电解液种类、晶化时间、晶化温度以及合成次数等参数对分子筛膜的影响.结果表明，经阳极氧化工艺处理后，不锈钢丝网表面出现了明显的孔径结构，并生成了一层致密的阳极氧化膜.这些孔道结构和阳极氧化膜有利于ZSM-5分子筛膜的生长，是成功合成高结合力分子筛膜的关键.各制备参数对分子筛膜的结构形成亦产生了较大的影响.
GUOHongmei(郭红梅) +4 more
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Gongye shui chuli, 2022 以铁片为阳极、金属钛板为阴极，采用电化学氧化法合成高铁酸钠，研究了NaOH电解液浓度、制备温度和电流密度对高铁酸钠生成的影响及机理，并探析了高铁酸钠制备过程中铁阳极钝化的机理。结果表明，提高NaOH浓度和制备温度不仅有利于高铁酸钠的生成，同时也有利于提高电流效率；提高电流密度虽会增加高铁酸钠的生成量，但也会显著降低电流效率。综合考虑电流效率和制备成本，高铁酸钠的最佳制备条件为：NaOH浓度为14 mol/L、温度为45 ℃、电流密度为5 mA/cm2。在最佳制备参数下电解后，利用FESEM ...
杨雪, 曾亚南, 李俊国, 刘宝
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Rare Metals, Volume 45, Issue 6, June 2026.ABSTRACT NiTi shape memory alloys (SMAs) show excellent performance in vibration damping and corrosion resistance. However, due to low hardness and lack of self‐lubrication, they suffer severe friction and wear during service. Although various strategies including doping and heterostructure design have been proposed, the effects are unsatisfactory.
Huwen Ma +13 more
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Rare Metals, Volume 45, Issue 5, May 2026.ABSTRACT NASICON‐type Na4VMn(PO4)3 (NVMP) is a promising high‐capacity cathode for sodium‐ion batteries, yet its practical deployment is hindered by Mn3+‐driven lattice distortion, persistent oxygen vacancy defects, and sluggish Na+ transport, collectively resulting in accelerated performance degradation.
Deyi Zhang +10 more
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Rare Metals, Volume 45, Issue 5, May 2026.ABSTRACT Size‐controllable Sn nanoparticles are designed in this work via oxide doping to be uniformly embedded into flexible N‐doped carbon nanofibers, in which the agglomeration and migration of Sn are effectively restrained due to the suppressive effect of selected oxides, including SiO2, TiO2, and ZnO. Benefiting from unique merits of the embedment
Yu Xin +6 more
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Rare Metals, Volume 45, Issue 5, May 2026.ABSTRACT Layered double hydroxides (LDHs) are attractive non‐noble catalysts for overall water splitting (OWS), yet their hydrogen evolution reaction (HER) activity is often limited by suboptimal *H adsorption and a paucity of accessible sites. Herein, we introduce an oxygen‐vacancy (Ov) engineering strategy to construct ultrathin Ni‐Fe LDH nanosheets ...
Qi Liu +8 more
wiley +1 more source
Engineering Geometric Active Sites in Cobalt Spinel Oxides for Energy and Environmental Catalysis
Rare Metals, Volume 45, Issue 4, April 2026.ABSTRACT Cobalt‐based spinel oxides (Co3O4 and derivatives) are among the most promising transition metal oxides for electrochemical energy conversion and environmental catalysis due to their abundant active sites, structural tunability, and robust redox flexibility.
Shenning Liu +6 more
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Gongye shui chuli, 2006 阳极材料是电化学氧化法处理有机废水的关键。综述了贵金属电极、碳素电极、钛基金属氧化物电极和合成掺硼金刚石(BDD)薄层电极在内的常用阳极材料的性能，并对有机废水电化学氧化阳极材料的发展趋向进行了展望。
盛怡 +4 more
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