Results 31 to 40 of about 433,240 (151)
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
wiley +1 more source
, 2009 针对低碳氮比猪场废水传统脱氮法碳源不足的问题,采用SBBR反应器进行短程硝化反硝化-厌氧氨氧化联合脱氮.实验表明,短程硝化反硝化预处理可为厌氧氨氧化创造良好的进水条件;经预处理的猪场废水厌氧氨氧化脱氮效果显著,氨氮、亚硝态氮和总氮的平均去除率分别为91.8%、99.3%、84.1%,废水中残留有机物未对厌氧氨氧化效果产生明显影响,氨氮、亚硝态氮、硝态氮平均变化量之比为1∶1.21∶0.24.色质联用分析结果显示,猪场废水中有机物成分在厌氧氨氧化反应前后未发生明显变化,主要化合物为酯类和烷烃类物质 ...
郝纯 +4 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
wiley +1 more source
Effect pf Carbon and Nitrogen on Development and Flowering of Oncidium Gower Ramsey
, 2013 瞭解碳素與氮素在植體內的分配對於植物的生長發育可提供許多資訊。文心蘭(Oncidium spp. )為臺灣第二大之蘭花產業，但在碳氮分配以及碳氮平衡這部份的資訊至今仍不完整。本研究之目的係為瞭解文心蘭Gower Ramsey在一完整生長週期內碳素與氮素之消長，並以碳素、氮素分配及碳氮平衡之觀點來探討文心蘭的生育與開花。 具開花能力之文心蘭Gower Ramsey在新芽發育前期，地上部比地下部之比值由5.4降至4.3，植株乾重與碳氮含量增加；由芽發育期進入假球莖出鞘期 ...
王怡景, Wang, Yi-Ching
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Engineering 2D Materials for High‐Current‐Density Electrocatalytic Water Splitting
Rare Metals, Volume 45, Issue 2, February 2026.ABSTRACT Water electrolysis is a key method for sustainable hydrogen production, using water as an abundant resource. However, efficient and stable operation at high current densities remains challenging due to energy losses, catalyst degradation, and limited ion–electron transport.
Tianqi Guan +8 more
wiley +1 more source
, 2014 本发明涉及一种含氮碳纳米管及其制备方法。具体制备步骤如下：在溶剂热体系下，以Zn2+、Fe2+为共金属离子，与咪唑类的有机配体配位，合成咪唑聚合物纳米球。将该球与不同量的二氰二胺混合（二氰二胺与咪唑类聚合物小球的质量比在2.5-20范围内可调）或者将单纯的咪唑聚合物纳米球，在N2气氛，700°C-900°C下碳化3-4h，得到固体材料。然后用王水以及硝酸除去金属Zn、Fe，进而得到管直径在30-800nm范围内可调，氮掺杂量在4-12%范围内可调的氮掺杂多壁碳纳米管。该方法工艺简单，对设备要求低，耗能少，
苏盼盼, 杨启华, 李灿
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Shuitu Baochi Xuebao, 2003 为了解侵蚀型红壤植被恢复后土壤生物学肥力的变化,采集了持续时间为17年和9年的2个定位试验点土壤样品。分析结果表明:侵蚀型红壤上木荷、杉木造林17年后,土壤微生物量碳、氮上升明显,木荷、杉木林表层(0～0.2m)土壤微生物碳、氮分别比对照增加了11.94,8.85,7.53,4.34倍。种植9年的黑麦草、杉木和胡柚3个处理表层土壤(0～0.2m)微生物量碳也比对照高出2.3～2.7倍,微生物量氮比对照高出0.7～1.4倍。从不同植被土壤比较来看,木荷、黑麦草土壤微生物碳氮比较低,表层土壤分别为7 ...
姜培坤 周国模
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Rare Metals, Volume 45, Issue 1, January 2026.ABSTRACT Low conductivity and poor oxygen reduction reaction (ORR) catalytic activity limit the bifunctional catalytic performance of layered double hydroxide (LDH) in zinc–air batteries. In this work, an efficient bifunctional electrocatalyst was prepared by loading nitrogen and phosphorus co‐doped carbon quantum dots (NPCQDs) onto a cationic‐vacancy ...
Wenhao Tang +4 more
wiley +1 more source
, 2009 通过对盆栽培养模拟试验研究长期施肥对种植大豆的土壤、裸土和根际微生物量碳、氮的影响。设置化肥+有机肥(NPKOM),单施化肥(NPK),不施肥(CK)3个施肥处理。结果表明:施肥对土壤、裸土及根际中微生物量碳、氮含量的影响趋势相同,为NPKOM>NPK>CK。在土壤中,和CK处理相比较,NPK处理微生物量碳、氮的含量高出了124%和100%,NPKOM处理的微生物量碳、氮的含量增加了232%和197%。在裸土中,和CK处理相比较,NPK处理微生物量碳、氮的含量增加了116%和90 ...
韩晓增 +4 more
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