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1Perspectives and challenges of hydrogen storage in solid-state hydrides显示文摘Hydrogen has been widely considered as a clean energy carrier that bridges the energy producers and energy consumers in an efficient and safe way for a sustainable society.Hydrogen can be stored in a gas,liquid and solid states and each method has its unique advantage.Though compressed hydrogen and liquefied hydrogen are mature technologies for industrial applications,appropriate measures are necessary to deal with the issues at high pressure up to around 100 MPa and low temperature at around 20 K.Distinct from those technologies,storing hydrogen in solid-state hydrides can realize a more compact and much safer approach that does not require high hydrogen pressure and cryogenic temperature.In this review,we will provide an overview of the majormaterial groups that are capable of absorbing and desorbing hydrogen reversibly.The main features on hydrogen storage properties of each material group are summarized,together with the discussion of the key issues and the guidance of materials design,aiming at providing insights for new material development as well as industrial applications.Zhen Chen Zhongliang Ma Jie Zheng Xingguo Li Etsuo Akiba Hai-Wen Li 2021Chinese Journal of Chemical Engineering2021,34,1:4
2碳源浓度对新疆淡肤根石耳地衣组织培养的影响显示文摘地衣(Lichen)是真菌与藻类的共生体,被誉为植物界的'先锋植物',是互惠共生现象中最突出最完善的类群.随着地衣细胞工程学和分子生物学技术的发展,地衣在各领域中的作用逐渐被人们所认识,其中蕴含的巨大经济价值亦日益显露.地衣中富含地衣酸及地衣多糖,在医药,香料,食品,饲料,环境监测等方面都有发展潜能.由于地衣生长缓慢,难以人工培养,因而能否合理利用地衣资源,能否通过人工组织培养进一步提高地衣的经济效益,我们进行了初步探索.本次实验,在己知的地衣型真菌和藻类培养方法基础上,对新疆石耳属地衣(Umbilicaria haffm)中的淡肤根石耳(Umbilicaria Virginis schaer)在地衣型真菌培养基和共球藻有机营养培养基上,通过改变各种培养基中碳源的含量进行了组织培养.碳源可影响地衣酸的生成量,而地衣酸又直接影响地衣的生长.此次实验初步结果表明,不同碳源种类及碳源浓度对淡肤根石耳地衣的组织培养有一定影响,其中本次实验所用麦芽汁--酵母膏培养基(麦芽汁含量30g/L溶液)对新疆淡肤根石耳的地衣型真菌是较理想的培养基,30g/L的麦芽汁是对新疆淡肤根石耳的地衣型真菌的菌丝体的生长是被定为最佳浓度,共球藻培养基(葡萄糖含量20g/L溶液)对共生藻的生长较合适,20g/L葡萄糖是对新疆淡肤根石耳的共生藻的苍生皲髓池生长被定为最佳浓度.古丽加汗·沙吾提 帕孜来提·拜合提 阿不都拉·阿巴斯 2004新疆大学学报(自然科学版)2004,21,z1:3
320世纪人机交流重要发明显示文摘徐敏荣 2000电子科技2000,13,4:0
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