Results 21 to 30 of about 1,256,043 (166)
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
Rare Metals, Volume 45, Issue 3, March 2026.ABSTRACT The detection of volatile organic compounds (VOCs) holds significant implications in environmental monitoring and disease diagnosis. Traditional gas detection technologies are constrained by complex operation and high cost, thereby failing to satisfy real‐time detection demands.
Yuening Wang +11 more
wiley +1 more source
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
Rare Metals, Volume 45, Issue 3, March 2026.ABSTRACT As a promising alternative to sluggish Li2CO3‐based Li‐CO2 electrochemistry, Li2C2O4 offers a favorable 2e− discharge pathway, yet its selective formation and reversible decomposition remain debated. Herein, we propose a nonmetal‐metal synergistic catalyst—B‐Ti coregulated layered transition metal boride Ti18B18O9/graphene (B‐Ti/TiBOG)—to ...
Qiong Peng +8 more
wiley +1 more source
Rare Metals, Volume 45, Issue 3, March 2026.ABSTRACT Single‐atom catalysis hinges on fundamental challenges in precisely controlling metal‐support interactions and rationally regulating metal–adsorbate relationships. Herein, we report a universal strategy for constructing highly efficient and well‐defined Cu(I) single‐atom catalysts based on a trifurcate AlL3 molecular support.
Donghui Zhang +9 more
wiley +1 more source
Gongye shui chuli, 2019 探讨了氧化铝对水体中硅酸的吸附去除潜力、影响因素及机理。结果表明，pH 4~8时吸附量随pH、吸附剂投加量的增大而增加，说明氧化铝具有吸附去除硅酸的能力。吸附过程符合Langmuir吸附等温模式，最大吸附量达39.82 mg/g。结合27Al MAS NMR与SEM-EDX分析，氧化铝吸附硅酸的机理是通过硅酸分子与氧化铝中4配位的铝发生化学反应，硅原子取代原来Al-O-Al键上的铝原子形成Al-O-Si键而被固定在氧化铝表面。
韩珏, 杜聪, 刘忠新, 白淑琴
doaj
Gongye shui chuli, 2022 为从有机废水中选择性吸附四环素（TC），在水系条件下采取简便快速的方法制备了金属有机骨架材料ZIF‒67。采用多种手段对合成得到的ZIF‒67进行了表征，研究了制备材料在TC与亚甲基蓝（MB）混合体系中的选择吸附性能，并考察了混合体系pH、污染底物配比、吸附体系中共存离子等因素对吸附过程的影响。结果表明，在温度为298 K，pH=6.5，MB和TC初始质量浓度分别为30、40 mg/L的条件下，ZIF‒67对TC的吸附选择性能够达到93.5%。ZIF ...
陈慕华 +6 more
doaj
Rare Metals, Volume 45, Issue 3, March 2026.ABSTRACT The development of highly efficient and stable nonprecious metal electrocatalysts for the acidic oxygen evolution reaction (OER) is crucial to advance proton exchange membrane (PEM) water electrolysis. In this work, a dual synergistic strategy was proposed by constructing a Ce‐modified MnO2/MnO heterostructure.
Chuanbin Li +7 more
wiley +1 more source
Gongye shui chuli, 2020 研究了新型吸附材料Zn-MOF-74对水体中重金属Cd（Ⅱ）的吸附性能和吸附机理。结果表明，吸附过程较好地符合Langmuir模型、Temkin模型、D-R模型和准二级动力学模型，最大吸附量为16.77 mg/g；吸附过程为物理吸附和化学吸附共同作用，且为自发的放热反应。采用Zn-MOF-74处理0.5 mg/L的含镉废水，有效时长可达36.25 h，Cd（Ⅱ）去除率>90%；NaCl溶液的解吸率可达到85%。吸附位点主要集中在孔道中，有静电作用、化学作用和氢键作用。
吴成晨 +5 more
doaj