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<正>2019年,我国《政府工作报告》首次写入氢能源,要推动加氢设施建设。长三角区域具备发展氢能的基础和优势,在当前背景下,需要抓住机遇、明确任务、加快布局,推动长三角区域成为国际氢能应用发展的标杆示范,让氢能为长三角区域一体化发展提供持久的新动能。1氢能产业已成为全球瞩目的未来产业氢能是能源转型的重要突破口。氢能作为一种清洁的二次能源,具有来源广、燃烧热值高、能量密度大、可储存、可再生、可电可燃、零污 相似文献
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氢能是各国看好的未来能源,氢能可以由可再生能源制备,也是可再生能源的可靠载体,可以改善可再生能源的不稳定性。我国要大力发展可再生能源,就要认真研究如何根据国力与国情发展氢能及其应用。本文建议我国发展氢能战略应积极实践从氢在混合燃料中的含量比例较低的应用开始,逐步过渡到全氢燃料;加强对氢能的基础研究的投入;扩大开发氢能的国际交流。 相似文献
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标准是经济活动和社会发展的技术支撑,是产业规范化、规模化发展的重要基础,不仅能够提升产业的规范性和竞争力,而且能为技术创新和产业升级提供坚实基础。氢能产业在解决气候危机、提高能源安全和创造经济价值方面潜力巨大,多数国家(或地区)已将氢能纳入能源体系,作为实现“碳达峰、碳中和”的重要途径之一。虽然不同国家对于氢能发展有不同的出发点与侧重点,但对氢能标准体系建设均十分重视。本文通过对比国外先进国家氢能发展战略及标准化情况,分析我国氢能产业及标准化工作存在的短板与不足,并提出合理化建议,旨在完善氢能标准体系、充分发挥标准对氢能产业发展的基础性、战略性、引领性作用。 相似文献
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我国能源的电力生产与消费依然存在诸多矛盾,效率不高、弃光弃风等现象频发,严重阻碍了可再生能源产业的健康发展。面对能源电力系统的多重挑战,推进以风电、光伏发电、火电、水电等多种能源形式协同运行的高效方式——多能互补方式,能够合理高效地利用能源资源,实现能源梯级利用,提升系统的整体效率,缓解能源供需矛盾,扫清可再生能源产业发展的障碍。多能互补倡导的融合、统一、高效、清洁理念是能源变革的发展趋势和方向。 相似文献
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高容量储氢材料的研究进展 总被引:6,自引:0,他引:6
氢能是一种理想的二次能源.氢能开发和利用需要解决氢的制取、储存和利用3个问题,而氢的规模储运是现阶段氢能应用的瓶颈.氢的储存方法有高压气态储存、低温液态储存和固态储存等3种.固态储氢材料储氢是通过化学反应或物理吸附将氢气储存于固态材料中,其能量密度高且安全性好,被认为是最有发展前景的一种氖气储存方式.由轻元素构成的轻质高容量储氢材料,如硼氢化物、铝氢化物、氨摹氢化物等,理论储氢容量均达到5%(质量分数)以上,这为固态储氢材料与技术的突破带来了希望.新型储氢材料未来研究的重点将集中于高储氢容量、近室温操作、可控吸/放氢、长寿命的轻金属基氢化物材料与体系. 相似文献
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煤、石油、天然气等不可再生能源的消耗导致环境污染日益严重,开发和使用清洁的可再生能源迫在眉睫。利用太阳能光催化分解水制氢被认为是解决化石能源紧缺和环境污染问题的有效途径之一。光催化分解水制氢体系非常复杂,助催化剂是影响催化剂光催化效率的一个关键因素,它的引入可以有效提高催化剂的光催化活性和氢气产生速率,因此,开发廉价高效的助催化剂已逐渐成为本领域的研究热点。本文结合光催化分解水制氢原理,简要介绍了助催化剂的作用,对近年来光催化分解水产氢助催化剂的种类和研究内容进行了总结,分析和讨论了几类重要助催化剂的特点及作用机理,并对助催化剂的发展进行了展望,以期为新型高效光催化制氢材料的设计提供参考。 相似文献
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氢能的有效开发和应用主要需解决氢的安全、高效储运瓶颈问题。MgH_2具有高储氢容量、资源丰富以及成本低廉等优点,被认为是最具发展前途的一类储氢材料。但是,MgH_2较高吸放氢温度和较慢吸放氢速率限制了其实际应用。核壳结构纳米镁基储氢材料有助于材料储氢性能的改善,目前已取得了大量成果。本文针对国内外纳米镁基核壳结构储氢体系研究现状,归纳了该类储氢材料的制备方法,重点阐述和总结了其吸放氢热力学动力学性能、微观结构、物相变化,并对该领域的研究成果和方向进行了总结和展望,指出调控核壳结构镁基材料的纳米尺寸、添加高效纳米催化剂及其综合协同作用是镁基储氢材料领域未来的研究趋势和重要研究方向。 相似文献
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Chang Liu Feng Li Lai‐Peng Ma Hui‐Ming Cheng 《Advanced materials (Deerfield Beach, Fla.)》2010,22(8):E28-E62
Popularization of portable electronics and electric vehicles worldwide stimulates the development of energy storage devices, such as batteries and supercapacitors, toward higher power density and energy density, which significantly depends upon the advancement of new materials used in these devices. Moreover, energy storage materials play a key role in efficient, clean, and versatile use of energy, and are crucial for the exploitation of renewable energy. Therefore, energy storage materials cover a wide range of materials and have been receiving intensive attention from research and development to industrialization. In this Review, firstly a general introduction is given to several typical energy storage systems, including thermal, mechanical, electromagnetic, hydrogen, and electrochemical energy storage. Then the current status of high‐performance hydrogen storage materials for on‐board applications and electrochemical energy storage materials for lithium‐ion batteries and supercapacitors is introduced in detail. The strategies for developing these advanced energy storage materials, including nanostructuring, nano‐/microcombination, hybridization, pore‐structure control, configuration design, surface modification, and composition optimization, are discussed. Finally, the future trends and prospects in the development of advanced energy storage materials are highlighted. 相似文献
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Qiming Sun Ning Wang Qiang Xu Jihong Yu 《Advanced materials (Deerfield Beach, Fla.)》2020,32(44):2001818
Hydrogen has emerged as an environmentally attractive fuel and a promising energy carrier for future applications to meet the ever-increasing energy challenges. The safe and efficient storage and release of hydrogen remain a bottleneck for realizing the upcoming hydrogen economy. Hydrogen storage based on liquid-phase chemical hydrogen storage materials is one of the most promising hydrogen storage techniques, which offers considerable potential for large-scale practical applications for its excellent safety, great convenience, and high efficiency. Recently, nanopore-supported metal nanocatalysts have stood out remarkably in boosting the field of liquid-phase chemical hydrogen storage. Herein, the latest research progress in catalytic hydrogen production is summarized, from liquid-phase chemical hydrogen storage materials, such as formic acid, ammonia borane, hydrous hydrazine, and sodium borohydride, by using metal nanocatalysts confined within diverse nanoporous materials, such as metal–organic frameworks, porous carbons, zeolites, mesoporous silica, and porous organic polymers. The state-of-the-art synthetic strategies and advanced characterizations for these nanocatalysts, as well as their catalytic performances in hydrogen generation, are presented. The limitation of each hydrogen storage system and future challenges and opportunities on this subject are also discussed. References in related fields are provided, and more developments and applications to achieve hydrogen energy will be inspired. 相似文献
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