Results 21 to 30 of about 624 (55)
Gongye shui chuli, 2017 采用缺氧/好氧-膜生物反应器（A/O-MBR）工艺处理油页岩干馏废水，考察了启动期反应器中COD和NH4+-N的去除情况，探讨稳定期污泥混合液回流比、碳氮比和进水方式对COD、NH4+-N、TN去除效果的影响。结果表明，混合液回流比为300%~700%，TN去除率由87.67%提高至95.99%，但混合液回流比提高至900%时，其对废水处理效果影响不大。废水COD和TN的去除率随进水碳氮比的升高而提高，碳氮比由3提高至8，COD和TN的去除率分别由91.39%、82.81%提高至96.33%、92.21%
于鑫, 李亮, 胡筱敏
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Rare Metals, Volume 45, Issue 4, April 2026.ABSTRACT Alkali metal–chalcogen batteries (AMCBs) are one of the most promising next‐generation energy storage systems because of their high energy density and reasonably low cost. However, the practical application of AMCBs is severely hindered by the volume expansion of the chalcogen cathode, the shuttle effect of polychalcogenides, and unstable ...
Yong Liu +11 more
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Shuitu Baochi Xuebao, 2022 为了探索秸秆还田与氮肥配施对砂质潮土微生物活性与土壤团聚体的影响。采用室内培养的方法, 在定量秸秆条件下, 通过控制尿素用量, 研究不同氮肥用量与秸秆配施比例对砂质潮土的有机质、土壤微生物量碳、氮含量、土壤酶活性以及土壤团聚体的影响。结果表明: 与CK相比, 秸秆配施适量氮肥, 能显著提高土壤有机质(29.04%~41.90%)、微生物量碳(53.34%~90.33%)、氮含量(25.41%~38.67%)、土壤脲酶(35.29%~44.12%)、多酚氧化酶活性(36.67%~53.33%)以及大团聚体(
周孟椋 +6 more
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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
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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
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Gongye shui chuli, 2022 由于我国污水处理厂进水碳源不足，传统生物脱氮技术需补充碳源以满足脱氮要求，这额外增加了碳足迹和碳排放。碳中和背景下，低碳生物脱氮技术的发展为脱氮技术革新提供了基础。基于此，首先系统介绍了传统生物脱氮技术的原理及对应的功能微生物，分析了传统技术存在的问题；针对传统生物脱氮技术，提出添加新型碳源、调整工艺运行和挖掘内碳源等途径来提升脱氮效率。概述了几种低碳脱氮技术（短程硝化反硝化、同步硝化反硝化、厌氧氨氧化、微生物电化学技术）的工艺特点和创新原理，并与传统工艺进行了比对 ...
李瑞祥, 王鑫, 李田
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Rare Metals, Volume 45, Issue 3, March 2026.ABSTRACT Emerging as attractive alternatives for sustainable, low‐cost, and high‐performance electromagnetic interference (EMI) shielding, biomass‐derived carbon is nonetheless constrained by a limited repertoire of shielding mechanisms. Herein, a straightforward method was employed to synthesize self‐supporting Co nanoparticles embedded in porous N ...
Yingjie Xu +6 more
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Rare Metals, Volume 45, Issue 2, February 2026.ABSTRACT The poor Zn chemistry of Zn metal anode and sluggish reaction kinetics of cathodes at high mass loadings are two crucial issues for hindering the application of aqueous Zn‐ion batteries (AZIBs). Herein, the hierarchical porous N‐doped carbon fibers (HPNCFs) were proposed to simultaneously optimize the reversibility of Zn plating/stripping of ...
Song Yang +6 more
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Rare Metals, Volume 45, Issue 2, February 2026.ABSTRACT Ni3S2 has emerged as a promising catalyst for the electrochemical oxidation of biomass‐derived 5‐hydroxymethylfurfural (HMF) to 2,5‐furandicarboxylic acid (FDCA), driven by its distinctive physicochemical properties. However, its practical catalytic efficiency is severely hindered by abundant electrochemically inactive surface sites and poor ...
Cheng‐Feng Yi +5 more
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Rare Metals, Volume 45, Issue 2, February 2026.ABSTRACT The transformative potential of gallium nitride high electron mobility transistors (GaN HEMTs) in advancing carbon‐neutral power systems remains bottlenecked by contact resistance (Rc) at the metal–semiconductor (M‐S) interface, a critical determinant of switching losses and frequency response.
Ji‐Zhou Zhang +8 more
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