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电-氢-碳耦合促进新能源基地开发模式研究 [PDF]

open access: yes全球能源互联网
实现全球“碳中和”,核心是推动能源绿色低碳转型,重要举措是推动新能源大规模基地化开发和高效消纳。针对偏远、水电不足地区新能源基地开发面临的低碳调节手段不足、电网配置和消纳能力有限、“风光火”开发模式降碳难等问题与挑战,提出了基于电-氢-碳协同的新能源基地发展思路和开发模式,将氢基产业发展与新能源开发消纳、煤电灵活低碳转型深度融合,同时结合绿氢、绿氨、绿色甲醇等氢基产品制取工艺的技术发展和调节能力提升,量化分析绿电与绿色氢/氨/甲醇在终端消费市场的竞争力及经济效益 ...
刘泽洪   +4 more
doaj   +1 more source

基于CNN-Bi-LSTM功率预测的海岛综合能源系统优化调度 [PDF]

open access: yes全球能源互联网, 2023
合理构建海岛综合能源系统对沿海能源清洁化转型意义重大,其优化调度更是实现海岛能源供需平衡的有效途径。为此,提出了一种考虑风光功率预测的海岛综合能源系统优化调度方法。首先,搭建包含氢能设备、海水源热泵、海水淡化装置、波浪能发电装置等新型能源转换设备的系统模型。其次,海上气候多变会导致新能源发电不稳定,故采用含环境变量重要性排序的一维卷积神经网络和双向长短时记忆神经网络(convolutional neural network-bi-directional long short-term memory ...
王润治   +4 more
doaj   +1 more source

储氢单元在天然气管网中的定容优化研究 [PDF]

open access: yes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
doaj   +1 more source

Mechanism of phenylalanine damage induced by hydroxyl radicals in water-liquid phase environment(水液相环境下羟自由基诱导的苯丙氨酸分子损伤机理)

open access: yesZhejiang Daxue xuebao. Lixue ban, 2019
在MP2/ SMD/6-311++g(3df,2pd)//WB97X-D/SMD/6-311++G(d,p)理论水平上,研究了水液相环境下羟自由基诱导的苯丙氨酸分子的损伤机理。研究发现,羟自由基(水分子簇) 抽取α-氢、β-氢、苯环-氢以及羟自由基与苯环加成均可致苯丙氨酸分子损伤。势能面计算表明,羟自由基(水分子簇) 抽取α-氢和β-氢的最低能垒分别为68.4 和89.3 kJ·mol-1,羟自由基抽取苯环-氢的最低能垒为111.6 kJ·mol-1,羟自由基加成到苯环不同位点碳的能垒大约在106.5 ...
PANYu(潘宇)   +6 more
doaj   +1 more source

Study on the preparation and property of Pt/Ce0.5M0.5O2 (M = Zr,Ti) catalysts with high hydrothermal stability for hydrodeoxygenation(高水热稳定性加氢脱氧催化剂Pt/Ce0.5 M0.5O2 (M = Zr,Ti)的制备及其性能研究)

open access: yesZhejiang Daxue xuebao. Lixue ban, 2018
分别采用共沉淀法和溶胶凝胶法制备了具有高水热稳定性的Ce0.5M0.5O2 (M=Zr,Ti)载体,并通过浸渍法制得高分散Pt/Ce0.5M0.5O2(M=Zr,Ti)催化剂,分析了短链脂肪醇作为氢供体用于香兰素加氢脱氧反应的催化性能.实验结果表明,复合氧化物催化剂Pt/Ce0.5M0.5O2(M=Zr,Ti)具有高的水热稳定性和优良的加氢脱氧活性,且Pt/Ce0.5Zr0.5O2较Pt/Ce0.5Ti0.5O2的催化性能更胜一筹,催化剂的加氢脱氧性能与其表面的酸性质以及贵金属Pt在载体上的高度分散有关.
CHANGAo(常傲)   +3 more
doaj   +1 more source

阿克苏断层氢气浓度动态特征及其映震效能

open access: yesDizhen xuebao, 2021
首先对阿克苏断层氢气浓度观测资料的周期成分进行了时频分析,然后分别利用线性回归和互相关方法分析了气温、气压与氢气浓度年周期成分的关系,并利用Molchan图表法对阿克苏断层氢气的映震效能进行了定量检验。结果显示:① 阿克苏断层氢气浓度具有清晰的年周期和半日周期成分;② 阿克苏断层氢气浓度的年周期动态变化与气温具有显著的正相关性,与气压的相关性一般,表明其年周期变化主要受气温影响;③ 阿克苏断层氢气浓度异常对观测点周边中强以上地震的反应较灵敏,映震效果较好。
Jun Zhong, Bo Wang, Wei Yan, Yuchuan Ma
doaj   +1 more source

Effect of optical isomerism of α -Ala molecules with hydrogen bonds between carboxyl groups and amino and the roles of hydroxyl radicals and hydroxyl group in water environment(水环境下羧基与氨基间为单氢键的α-Ala 旋光异构及羟自由基和氢氧根的作用)

open access: yesZhejiang Daxue xuebao. Lixue ban, 2019
采用密度泛函理论的B3LYP 方法、微扰理论的MP2 方法和自洽反应场(SCRF) 理论的SMD 模型方法,研究了水环境下羧基与氨基间为单氢键的α-Ala 旋光异构及羟自由基和氢氧根作用的反应。研究发现:α- Ala 的旋光异构可在a 和b 两个通道实现,a 通道为羧基顺反异构后,水分子簇作媒介质子以氨基为桥从α 碳的一侧向另一侧迁移;b 通道为水分子簇作媒介,质子从α 碳向氨基氮的迁移与羧基顺反异构协同进行。在a 通道,羟自由基水分子簇可致α-Ala 损伤。势能面计算表明:水环境下,在a 通道3 ...
YANHongyan(闫红彦)   +3 more
doaj   +1 more source

Electronic Modulation of CoNi Nanoparticles by N‐Doped Carbon for Efficient Lignin Hydrogenolysis to Aromatic Monomers

open access: yesRare Metals, Volume 45, Issue 3, March 2026.
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

Ionic‐Liquid‐Assisted Synthesis of NiTe/CoTe Heterostructure With Te Vacancies in N, P, and F Co‐Doped Hollow Carbon Nanorods for Efficient Alkaline Hydrogen Evolution and High‐Performance Flexible Supercapacitors

open access: yesRare Metals, Volume 45, Issue 3, March 2026.
ABSTRACT Low conductivity, slow ion‐diffusion, and limited reactive sites are common problems in electrocatalysts and electrode materials. In this study, a complex NiTe–CoTe heterojunction with abundant Te vacancies embedded in N, P, and F co‐doped hollow carbon nanorods (NiTe1−x–CoTe1−x/NPFC) was fabricated via a simple ionic liquid‐assisted ...
Mingjie Yi   +7 more
wiley   +1 more source

Electrospun Carbon Nanofiber‐Based Multifunctional Electrocatalysts for Zinc‐Air Batteries and Overall Water Splitting: Fabrication, Progress, and Perspective

open access: yesRare Metals, Volume 45, Issue 3, March 2026.
ABSTRACT The development of high‐performance and stable electrocatalysts for oxygen reduction reaction (ORR), oxygen evolution reaction (OER), and hydrogen evolution reaction (HER) plays a critical role in advancing clean energy technologies, including metal‐air batteries and hydrogen production through overall water splitting.
Chen‐Yu Cai   +4 more
wiley   +1 more source

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