Results 11 to 20 of about 26,472 (207)
Rare Metals, EarlyView.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
Rare Metals, EarlyView.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
Engineering 2D Materials for High‐Current‐Density Electrocatalytic Water Splitting
Rare Metals, EarlyView.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
Orbitally Driven Anomalous Thermal Transport Under High Pressure in Gallium Nitride
Rare Metals, EarlyView.ABSTRACT Extreme conditions such as high pressure offer opportunities for innovative materials design and applications. For over a century, studies on thermal transport in crystals under high hydrostatic pressure have shown that lattice thermal conductivity generally exhibits a monotonic increase with pressure.
Zong‐Hao Yuan +8 more
wiley +1 more source
Rare Metals, EarlyView.ABSTRACT Enhancing the performance of phosphor materials for wide‐color‐gamut and high‐brightness phosphor‐converted light‐emitting diodes (pc‐LEDs) represents a critical materials challenge. Improving quantum efficiency (QE) under concentration quenching constraints and maintaining thermal stability remain primary objectives.
Yuhan Zhou +3 more
wiley +1 more source
Rare Metals, EarlyView.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
Electrolyte With Functionalized Boron Nitride Nanosheets for Dendrite‐Free Lithium Metal Anodes
Rare Metals, EarlyView.ABSTRACT Lithium metal batteries (LMBs) are regarded as promising candidates for the next‐generation high‐energy‐density storage systems due to their unparalleled theoretical energy density and low redox potential. However, the commercialization of LMBs is tremendously plagued by the barbaric growth of lithium dendrite and the intricate decomposition ...
Ji Zhou +5 more
wiley +1 more source
Shuitu Baochi Xuebao, 2011 在自然降雨条件下研究澄江尖山河流域4种不同土地类型输出地表径流的TN、TP、NO3--N、NH4+-N及溶解态磷(DP)的特征,并利用TN/TP和Inorganic-N/DP、NO3--N/DP、NH4+-N/DP等比率对4种土地类型输出径流的养分限制性和富营养化风险进行分析。结果表明,不同土地类型在防治不同土壤养分流失的能力上存在差异,NO3--N、NH4+-N、DP的输出浓度随着径流中TN、TP浓度的增大而增大;人工林和次生林输出的径流对抚仙湖水生自养生物的生长具有磷元素限制性 ...
白荣, 郎南军, 邵智
doaj
Shuitu Baochi Xuebao, 2022 探讨减氮模式下氮肥不同基追比例对滴灌春小麦氮代谢关键酶活性、氮素积累转运、产量及氮肥利用率的影响, 为新疆麦区滴灌春小麦高效生产提供科学依据。以中筋型"新春6号"(XC 6)和强筋型"新春37号"(XC 37)小麦品种为材料, 设置0∶0, 2∶8, 3∶7, 4∶6, 5∶5共5种氮肥基追比处理, 研究氮肥基追比例对滴灌春小麦氮代谢及氮肥利用率的影响。结果表明: 同一品种下, 随氮肥基追比例的增加, 氮代谢酶活性、氮素积累、氮肥利用率(NUE)、籽粒产量及蛋白质产量均呈现先升高后降低的趋势 ...
王海琪 +4 more
doaj
Nitrogen speciation and stable nitrogen and oxygen isotopic compostions of maritime aerosol in spring over the continental shelf sea in eastern china and the Northwest Pacific Ocean [PDF]
, 2016 大气气溶胶是大气化学中多相反应的催化剂，其化学成份极其复杂。人类活动释放到大气中的不同形态的活性氮是大气气溶胶中一个重要的组成部分。在东亚冬季季风的驱使下，含有活性氮的气溶胶可以在大气中长距离传输并沉降到下风向区域的边缘海和开阔大洋。稳定氮同位素可用于追溯海洋源气溶胶中活性氮的主要来源及其在大气中的化学过程。但由于氮同位素在大气传输和化学转化过程中的分馏效应，使得其应用变得复杂。起源于西伯利亚的东亚冬季季风通过人为活性氮排放强烈的中国东北后又覆盖了整个中国东部陆架海和西北太平洋海域，而且在该海域的春季 ...
罗笠
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