Results 31 to 40 of about 816,899 (143)
Rare Metals, Volume 45, Issue 6, June 2026.ABSTRACT The urgent environmental crisis caused by polyethylene terephthalate (PET) waste necessitates efficient upcycling strategies. Herein, we establish a novel pathway to transform waste PET plastic into a high‐performance catalytic material for mediating the oxygen evolution reaction (OER). Through a one‐step hydrothermal process, waste PET serves
Xin Wang +5 more
wiley +1 more source
Shuitu Baochi Xuebao, 2017 为探讨亚热带季风性湿润气候地区降水对土壤呼吸的影响，于2014年选取重庆市缙云山自然保护区内的针阔混交林为研究对象，通过人为拦挡和增水的方式模拟不同降水输入量对土壤呼吸速率的影响，包括达到土壤含水量的70%（增水70%，70%A），100%（增水100%，100%A），130%（增水130%，130%A）及对照和零降水5种情况。结果表明：(1)不同降水处理下土壤呼吸速率日变化均呈单峰变化曲线，并在12：00～14：00之间达到最大值；其年内月变化也为单峰曲线，于8月份达到最大值，12月份达到最小值。（2）
张英俊, 张会兰, 魏天兴
doaj
Rare Metals, Volume 45, Issue 5, May 2026.ABSTRACT f–f electronic transitions of rare‐earth elements typically exhibit unique physicochemical properties that benefit the photocatalytic performance of the catalysts containing the elements. Although conventional rare‐earth metal oxides or single‐atom doping in semiconductors have been extensively studied, the construction of heterojunction ...
Yang‐Sen Xu +6 more
wiley +1 more source
Rare Metals, Volume 45, Issue 5, May 2026.ABSTRACT Layered double hydroxides (LDHs) are attractive non‐noble catalysts for overall water splitting (OWS), yet their hydrogen evolution reaction (HER) activity is often limited by suboptimal *H adsorption and a paucity of accessible sites. Herein, we introduce an oxygen‐vacancy (Ov) engineering strategy to construct ultrathin Ni‐Fe LDH nanosheets ...
Qi Liu +8 more
wiley +1 more source
Rare Metals, Volume 45, Issue 4, April 2026.ABSTRACT Thermally driven hydrogenation of CO2 to light olefins (C2=–C4=) using metal oxide‐zeolite tandem catalysts is an effective strategy for achieving carbon neutrality. However, progress in this area is constrained by zeolite pore transport limitations, acid‐site inactivation, and surface carbon poisoning.
Haifeng Tian +10 more
wiley +1 more source
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
Rare Metals, Volume 45, Issue 3, March 2026.ABSTRACT Photocatalytic hydrogen production from water splitting is a promising strategy for sustainable and clean energy generation. However, the design of low‐cost, highly active photocatalysts remains a critical challenge. In this study, covalent organic frameworks (COFs) were loaded onto the surface of Cd0.9Cu0.1S to fabricate COF/Cd0.9Cu0.1S ...
Yue Zhao +3 more
wiley +1 more source
, 2009 通过野外定位观测准噶尔盆地荒漠植物群落(假木贼群落和盐穗木群落)在不同人工模拟降水强度下的土壤呼吸、土壤温度和湿度动态,探讨了荒漠群落土壤呼吸速率对降水后土壤增湿的响应。结果发现两种荒漠植物群落的土壤呼吸速率均出现了模拟降水后10min减小、随后逐渐增加、达到最大值后再次衰减的现象。降水处理的土壤呼吸速率最大值出现滞后于对照处理,且呼吸速率最大值及最大值后的递减速率普遍高于对照。降水后土壤呼吸速率变化受温度和土壤湿度共同影响,降水后10min土壤呼吸速率的减小与土壤湿度最大值同步 ...
陈亚宁 +4 more
core
, 2009 燃烧效率是超声速燃烧优劣的直接评价，一直是超燃实验研究的测量难点。本文发展了基于可调谐二极管激光器吸收光谱技术(TDLAS)的燃烧效率测量方法。利用3条水蒸气吸收谱线(7168.437cm-1,7185.597cm-1和6807.834cm-1)，在4kHz的测量频率下，采用分时扫描-直接探测的策略测量了以氢气为燃料的超燃直联台燃烧室入口的气体参数，并利用位移机构扫描测量捕捉了燃烧室后段某垂直截面的温度、水蒸气浓度分布和截面的平均气流速度 ...
顾声龙 +6 more
core +1 more source
Tailoring Spin States of CuNNi3 via d‐d Orbital Coupling for High Performance Water Splitting
Rare Metals, Volume 45, Issue 3, March 2026.ABSTRACT Against the backdrop of escalating global energy crises and environmental challenges, the development of clean and sustainable hydrogen energy has become increasingly imperative. Hydrogen production via water electrolysis is widely regarded as a promising approach due to its green and efficient characteristics.
Weigao Zhong +6 more
wiley +1 more source