Results 31 to 40 of about 55,752 (142)
Rare Metals, Volume 45, Issue 4, April 2026.ABSTRACT Driven by global energy transition and sustainability, sodium‐ion batteries (SIBs) have emerged as key alternatives to lithium‐ion batteries for low‐to‐medium energy storage, because of abundant sodium resources and low cost. However, their commercialization is hindered by the lack of anodes with high capacity, fast kinetics, and long‐term ...
Shuang‐Lin Cai +13 more
wiley +1 more source
Rare Metals, Volume 45, Issue 3, March 2026.ABSTRACT Cost‐effective and efficient non‐noble‐metal catalysts for selective lignin hydrogenolysis remain elusive, representing a significant challenge in biorefinery. Here, we prepared a nitrogen‐doped carbon supported CoNi bimetallic catalyst, which was successfully derived from zeolitic imidazolate framework (ZIF) via high‐temperature pyrolysis ...
Xingwei Luo +3 more
wiley +1 more source
, 2015 本发明公开了一种氮掺杂多孔碳薄膜的制备方法，采用磁控溅射的方法，以富碳材料作为溅射靶材，以氮气或者氮气与氩气的混合气体作为溅射气氛，以金属、无机半导体材料或无机绝缘材料作为衬底制备氮掺杂碳膜，所述衬底温度为20～500℃；在真空、氮气气氛或惰性气氛中，在300～1000℃下，氮掺杂碳膜经热处理10秒～20小时后，得到所述的氮掺杂多孔碳薄膜材料。本方法无需模板，不消耗有机溶剂，简单易行；本方法制备的氮掺杂多孔碳薄膜材料具有N含量、孔尺寸可调的特点，N含量最高可达30 ...
曹鸿涛, 陈浩, 诸葛飞
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Rare Metals, Volume 45, Issue 3, March 2026.ABSTRACT Recently, cobalt/nitrogen co‐doped materials have emerged as heterogeneous catalysts to activate peroxymonosulfate (PMS) and have been applied to advanced oxidation processes for environmental remediation. However, their recyclability and reusability remain major barriers to practical application.
Wen‐Kai Zhu +11 more
wiley +1 more source
Gongye shui chuli, 2006 采用Sn（Ⅳ）掺杂负载型纳米TiO2/AC处理橙黄G偶氮染料废水，以橙黄G的去除率为指标，对光催化反应工艺条件进行了优化。结果表明：催化剂中Sn（Ⅳ）掺杂摩尔分数为2.5%，投加质量浓度为12.5 g/L，进水橙黄G质量浓度为50mg/L、pH为2.00，H2O2投加量为1.5 mL/L，主波长为365 nm的300 W高压汞灯光照条件下，反应1 h，橙黄G的去除率可达99.1%。废水中的共存阴离子SO42-和H2PO4-，对橙黄G的光催化降解反应均有一定的抑制作用。
孙剑辉 +4 more
doaj +2 more sources
Rare Metals, Volume 45, Issue 3, March 2026.ABSTRACT Platinum (Pt)‐based catalysts are crucial for the commercialization of hydrogen/metal air batteries, but they suffer from Pt scarcity, high cost, and nanoparticle dissolution/agglomeration, mainly leading to performance degradation. We address this by synthesizing a PtFe alloy catalyst (PtFe–PA–NC) via a phytic acid (PA) assisted pyrolysis ...
Chenyang Shu +9 more
wiley +1 more source
Gongye shui chuli, 2015 采用硼掺杂金刚石(BDD)膜电极对氨氮废水进行处理,重点探讨了氨氮的氧化机理。结果表明:碱性条件下,氨氮在BDD电极上可直接氧化,其氧化率达6%。在氯离子存在条件下,氨氮氧化以间接氧化为主,氨氮去除率可达到87%,其中直接氧化率为8%,间接氧化率为79%,且在氧化过程中活性游离氯更易与氨氮发生反应,转化为N2或硝酸盐,而不是转化为氯酸盐或有害的高氯酸盐。
王春荣 +4 more
doaj +2 more sources
, 2017 本发明提供了一种氮掺杂石墨烯-MnO2复合材料及其制备方法，本发明提供的方法将锰源化合物溶液和氧化石墨烯溶液混合后加入过硫酸铵加热反应，得到氮掺杂石墨烯-MnO2复合材料；该方法不仅能够一步实现氧化石墨烯的还原，氮原子掺杂和MnO2的负载，且得到的复合材料中的MnO2为线状，进而增大了其在复合材料中的比表面积 ...
薛业建 +6 more
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Gongye shui chuli, 2022 铁基石墨相氮化碳复合材料结合了铁基材料、石墨相氮化碳（g-C3N4）以及异质结结构的优点，在促进复合材料光生电子-空穴的分离、扩大可见光响应能力、提高材料光催化性能等方面有着显著的优势。综述了铁基石墨相氮化碳异质结体系的基本分类、结构特点及其研究进展，包括Ⅱ型异质结体系（n-n结、p-n结）、Z型异质结体系（全固态Z结、直接Z结）以及典型非异质结体系（铁离子掺杂、核壳结构）中光生载流子的转移机制，总结了铁基材料在不同异质结体系中光催化降解有机物过程的氧化机理与增强机制。
刘晨, 杜永娟, 焦钰珠, 孙迎雪
doaj +2 more sources
Gongye shui chuli焦化废水中毒性物质超过500种，是公认的难处理废水。国内多数焦化企业的生产废水采用生化-物化法处理，最终出水水质指标难以达到《炼焦化学工业污染物排放标准》（GB 16171—2012）。因此，对焦化废水进行深度处理回用成为行业热点。作为最受青睐的光催化材料，石墨相氮化碳（g-C3N4）被广泛用于去除水中有机污染物。采用二氧化铈（CeO2）负载及氮掺杂来优化氮化碳，成功制备出具有良好吸光性能及光生载流子分离效率的CeO2/N-g-C3N4（CeO2/NGCN）复合光催化剂。CeO2/NGCN（质量分数1%）
安宁 +7 more
doaj +2 more sources