Results 11 to 20 of about 364,395 (161)
全球能源互联网, 2022 针对当前碳排放量过高的问题，在保证安全的前提下，将P2H装置制得的氢气掺混进入天然气管网进行运输，是当前降低碳排放的有效途径。文章建立了考虑储氢单元的天然气管网运行的混合整数线性规划模型，以最小化系统运行成本和最大化系统碳减排量为目标函数，考虑储氢单元、P2H制氢量和天然气管网运行约束，采用了ε约束法对多目标规划问题求解，确定了不同减排目标下电转氢气装置和储氢罐在天然气管网中的配置策略。考虑了天然气管网中含储氢单元和不含储氢单元两种运行场景，通过算例分析不同场景下的碳减排量和运行成本 ...
周军, 李帅帅, 周轩, 梁光川
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Shuitu Baochi Xuebao, 2021 增加陆地生态系统碳固定能力能有效缓解大气CO2升高引起的温室效应。以干旱区典型盐土和碱土为研究对象，通过室内土柱模拟试验，研究不同施用量脱硫石膏（0，10，20，21.78，30，40 t/hm2）对盐土和碱土生态系统碳储量（包括土壤碳储量和生物量碳储量）的影响。结果表明：与对照相比，施加脱硫石膏盐土总碳储量（C）降低8.78%~15.72%，其中以土壤有机碳储量降低为主；碱土总碳储量（C）增加5.00%~23.94%，其中以土壤无机碳增加为主。脱硫石膏施加后盐土总生物量碳储量（C）较对照平均降低23 ...
王著峰 +3 more
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Shuitu Baochi Xuebao, 2023 为探讨安徽省土地利用变化对碳储量的影响,揭示碳储量时空演化特征和未来变化趋势,通过耦合InVEST模型碳储存模块和PLUS模型,分析1990—2018年安徽省土地利用类型和碳储量时空演化特征,并从自然发展和生态保护情景预测2034年、2050年安徽省碳储量变化趋势。结果表明:安徽省1990年、2000年、2010年、2018年的碳储量分别为1 218.37×106,1 215.65×106,1 211.39×106,1 206.18×106 t,呈现逐年减少趋势,主要由于耕地、林地被侵占。此外 ...
孙方虎 +6 more
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Shuitu Baochi Xuebao, 2022 为明确黄土高原地区植被长期恢复的土壤碳汇效应,采用时空互代的方法,研究子午岭地区150年以来8个植被演替序列的土壤有机碳含量及储量的变化特征,分析影响土壤有机碳储量变化的植被因素。结果表明:从农地演替到气候顶级辽东栎(Quercus wutaishanicaMary.)群落,土壤有机碳含量和储量明显增加,表现为演替前期(草本群落)快速增加,后期(乔木群落)趋向稳定的变化特征。剖面上来看,随着土层加深,土壤有机碳含量迅速减少。0—5 cm土层土壤有机碳含量与5—20,20—40 cm土层差异显著(P＜0 ...
许小明 +7 more
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Shuitu Baochi Xuebao, 2007 利用标准样方法研究了川西最主要的两种退耕还林植被(苦竹林和桦木林)在恢复初期生态系统碳储量、碳素密度以及空间分配特征.结果表明:(1)苦竹不同器官碳素密度为0.348 5～0.518 6 gC/g,桦木不同器官碳素密度为0.451 9～0.513 7 gC/g;(2)苦竹林林下枯落物的碳素密度为0.341 7 gC/g,桦木林林下枯落物的碳素密度为0.395 3 gC/g;(3)不同植物器官的碳储量分配与各器官的生物量显著相关.苦竹林分中竹秆生物量占48.87%,其碳储量占53.06 ...
黄从德, 张健, 邓玉林, 杨万勤
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Rare Metals, Volume 45, Issue 5, May 2026.ABSTRACT Size‐controllable Sn nanoparticles are designed in this work via oxide doping to be uniformly embedded into flexible N‐doped carbon nanofibers, in which the agglomeration and migration of Sn are effectively restrained due to the suppressive effect of selected oxides, including SiO2, TiO2, and ZnO. Benefiting from unique merits of the embedment
Yu Xin +6 more
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Rare Metals, Volume 45, Issue 4, April 2026.ABSTRACT The utilization of carbonaceous anodes in electrochemical systems, particularly potassium‐ion batteries (PIBs), remains hindered by sluggish kinetics and modest capacities, which are caused by the intrinsic ion storage mechanisms and constrained interlayer spacings.
HaiSong Chen +7 more
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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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Rare Metals, Volume 45, Issue 4, April 2026.ABSTRACT Bismuth anode materials are considered promising anode candidates for sodium–ion batteries (SIBs) due to their high theoretical capacity and appropriate working potential. Nevertheless, the significant volume expansion that occurs during the cycling process restricts its broader application in sodium–ion storage. Herein, Bi/Bi2O3 nanoparticles
Jiaju Lu +3 more
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Rare Metals, Volume 45, Issue 4, April 2026.ABSTRACT Driven by global energy transition and sustainability, sodium‐ion batteries (SIBs) have emerged as key alternatives to lithium‐ion batteries for low‐to‐medium energy storage, because of abundant sodium resources and low cost. However, their commercialization is hindered by the lack of anodes with high capacity, fast kinetics, and long‐term ...
Shuang‐Lin Cai +13 more
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