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Layered alkali titanates (ATiO): possible uses for energy/environment issues

《能源前沿（英文）》 2021年 第15卷 第3期   页码 631-655 doi: 10.1007/s11708-021-0776-6

摘要： Uses of layered alkali titanates (A2TinO2n+1; Na2Ti3O7, K2Ti4O9, and Cs2Ti5O11) for energy and environmental issues are summarized. Layered alkali titanates of various structural types and compositions are regarded as a class of nanostructured materials based on titanium oxide frameworks. If compared with commonly known titanium dioxides (anatase and rutile), materials design based on layered alkali titanates is quite versatile due to the unique structure (nanosheet) and morphological characters (anisotropic particle shape). Recent development of various synthetic methods (solid-state reaction, flux method, and hydrothermal reaction) for controlling the particle shape and size of layered alkali titanates are discussed. The ion exchange ability of layered alkali titanate is used for the collection of metal ions from water as well as a way of their functionalization. These possible materials design made layered alkali titanates promising for energy (including catalysis, photocatalysts, and battery) and environmental (metal ion concentration from aqueous environments) applications.

关键词： layered alkali titanates     photocatalysis     hydrogen evdution     metal ions collection    

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A systemic review of hydrogen supply chain in energy transition

《能源前沿（英文）》 2023年 第17卷 第1期   页码 102-122 doi: 10.1007/s11708-023-0861-0

摘要： Targeting the net-zero emission (NZE) by 2050, the hydrogen industry is drastically developing in recent years. However, the technologies of hydrogen upstream production, midstream transportation and storage, and downstream utilization are facing obstacles. In this paper, the development of hydrogen industry from the production, transportation and storage, and sustainable economic development perspectives were reviewed. The current challenges and future outlooks were summarized consequently. In the upstream, blue hydrogen is dominating the current hydrogen supply, and an implementation of carbon capture and sequestration (CCS) can raise its cost by 30%. To achieve an economic feasibility, green hydrogen needs to reduce its cost by 75% to approximately 2 /kg at the large scale. The research progress in the midterm sector is still in a preliminary stage, where experimental and theoretical investigations need to be conducted in addressing the impact of embrittlement, contamination, and flammability so that they could provide a solid support for material selection and large-scale feasibility studies. In the downstream utilization, blue hydrogen will be used in producing value-added chemicals in the short-term. Over the long-term, green hydrogen will dominate the market owing to its high energy intensity and zero carbon intensity which provides a promising option for energy storage. Technologies in the hydrogen industry require a comprehensive understanding of their economic and environmental benefits over the whole life cycle in supporting operators and policymakers.

关键词： hydrogen production     hydrogen transportation and storage     hydrogen economy     carbon capture and sequestration (CCS)     technology assessment    

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Special issue on electrochemical conversion and utilization of hydrogen energy

《能源前沿（英文）》 2024年 第18卷 第3期   页码 263-264 doi: 10.1007/s11708-024-0944-6

摘要： Special issue on electrochemical conversion and utilization of hydrogen energy

关键词： hydrogen energy    

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Organic conjugated polymers and polymer dots as photocatalysts for hydrogen production

《能源前沿（英文）》 2021年 第15卷 第1期   页码 667-677 doi: 10.1007/s11708-021-0767-7

摘要： Owing to the outstanding characteristics of tailorable electronic and optical properties, semiconducting polymers have attracted considerable attention in recent years. Among them, organic polymer dots process large breadth of potential synthetic diversity are the representative of photocatalysts for hydrogen production, which presents both an opportunity and a challenge. In this mini-review, first, the organic polymer photocatalysts were introduced. Then, recent reports on polymer dots which showed a superior photocatalytic activity and a robust stability under visible-light irradiation, for hydrogen production were summarized. Finally, challenges and outlook on using organic polymer dots-based photocatalysts from hydrogen production were discussed.

关键词： polymer dots (Pdots)     photocatalysis     hydrogen production    

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Recent advances of small-molecule fluorescent probes for detecting biological hydrogen sulfide

《化学科学与工程前沿（英文）》 2022年 第16卷 第1期   页码 34-63 doi: 10.1007/s11705-021-2050-1

摘要： H2S is well-known as a colorless, acidic gas, with a notoriously rotten-egg smell. It was recently revealed that H2S is also an endogenous signaling molecule that has important biological functions, however, most of its physiology and pathology remains elusive. Therefore, the enthusiasm for H2S research remains. Fluorescence imaging technology is an important tool for H2S biology research. The development of fluorescence imaging technology has realized the study of H2S in subcellular organelles, facilitated by the development of fluorescent probes. The probes reviewed in this paper were categorized according to their chemical mechanism of sensing and were divided into three groups: H2S reducibility-based probes, H2S nucleophilicity-based probes, and metal sulfide precipitation-based probes. The structure of the probes, their sensing mechanism, and imaging results have been discussed in detail. Moreover, we also introduced some probes for hydrogen polysulfides.

关键词： hydrogen sulfide     fluorescent probe     reducibility     nucleophilicity     copper sulfide precipitate     hydrogen polysulfides    

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Production of hydrogen from fossil fuel: A review

《能源前沿（英文）》 2023年 第17卷 第5期   页码 585-610 doi: 10.1007/s11708-023-0886-4

摘要： Production of hydrogen, one of the most promising alternative clean fuels, through catalytic conversion from fossil fuel is the most technically and economically feasible technology. Catalytic conversion of natural gas into hydrogen and carbon is thermodynamically favorable under atmospheric conditions. However, using noble metals as a catalyst is costly for hydrogen production, thus mandating non-noble metal-based catalysts such as Ni, Co, and Cu-based alloys. This paper reviews the various hydrogen production methods from fossil fuels through pyrolysis, partial oxidation, autothermal, and steam reforming, emphasizing the catalytic production of hydrogen via steam reforming of methane. The multicomponent catalysts composed of several non-noble materials have been summarized. Of the Ni, Co, and Cu-based catalysts investigated in the literature, Ni/Al2O3 catalyst is the most economical and performs best because it suppresses the coke formation on the catalyst. To avoid carbon emission, this method of hydrogen production from methane should be integrated with carbon capture, utilization, and storage (CCUS). Carbon capture can be accomplished by absorption, adsorption, and membrane separation processes. The remaining challenges, prospects, and future research and development directions are described.

关键词： methane     catalytic conversion     natural gas     hydrogen production     CCUS    

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Bilayer borophene: an efficient catalyst for hydrogen evolution reaction

《化学科学与工程前沿（英文）》 2024年 第18卷 第3期 doi: 10.1007/s11705-024-2389-1

摘要： The electrocatalytic hydrogen evolution reaction is a crucial technique for green hydrogen production. However, finding affordable, stable, and efficient catalyst materials to replace noble metal catalysts remains a significant challenge. Recent experimental breakthroughs in the synthesis of two-dimensional bilayer borophene provide a theoretical framework for exploring their physical and chemical properties. In this study, we systematically considered nine types of bilayer borophenes as potential electrocatalysts for the hydrogen evolution reaction. Our first-principles calculations revealed that bilayer borophenes exhibit high stability and excellent conductivity, possessing a relatively large specific surface area with abundant active sites. Both surface boron atoms and the bridge sites between two boron atoms can serve as active sites, displaying high activity for the hydrogen evolution reaction. Notably, the Gibbs free energy change associated with adsorption for these bilayer borophenes can reach as low as ‒0.002 eV, and the Tafel reaction energy barriers are lower (0.70 eV) than those on Pt. Moreover, the hydrogen evolution reaction activity of these two-dimensional bilayer borophenes can be described by engineering their work function. Additionally, we considered the effect of pH on hydrogen evolution reaction activity, with significant activity observed in an acidic environment. These theoretical results reveal the excellent catalytic performance of two-dimensional bilayer borophenes and provide crucial guidance for the experimental exploration of multilayer boron for various energy applications.

关键词： bilayer borophene     hydrogen evolution reaction     work function     pH effect    

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Hydrogen Storage Performance During Underground Hydrogen Storage in Depleted Gas Reservoirs: A Review

Lingping Zeng,Regina Sander,Yongqiang Chen,Quan Xie,

《工程（英文）》 doi: 10.1016/j.eng.2024.03.011

摘要： Hydrogen has emerged as a promising alternative to meet the growing demand for sustainable and renewable energy sources. Underground hydrogen storage (UHS) in depleted gas reservoirs holds significant potential for large-scale energy storage and the seamless integration of intermittent renewable energy sources, due to its capacity to address challenges associated with the intermittent nature of renewable energy sources, ensuring a steady and reliable energy supply. Leveraging the existing infrastructure and well-characterized geological formations, depleted gas reservoirs offer an attractive option for large-scale hydrogen storage implementation. However, significant knowledge gaps regarding storage performance hinder the commercialization of UHS operation. Hydrogen deliverability, hydrogen trapping, and the equation of state are key areas with limited understanding. This literature review critically analyzes and synthesizes existing research on hydrogen storage performance during underground storage in depleted gas reservoirs; it then provides a high-level risk assessment and an overview of the techno-economics of UHS. The significance of this review lies in its consolidation of current knowledge, highlighting unresolved issues and proposing areas for future research. Addressing these gaps will advance hydrogen-based energy systems and support the transition to a sustainable energy landscape. Facilitating efficient and safe deployment of UHS in depleted gas reservoirs will assist in unlocking hydrogen’s full potential as a clean and renewable energy carrier. In addition, this review aids policymakers and the scientific community in making informed decisions regarding hydrogen storage technologies.

关键词： Underground hydrogen storage     Storage performance     Hydrogen deliverability     Hydrogen trapping     Risk assessment     Techno-economic analysis    

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我国氢能产业发展战略研究

凌文,李全生,张凯

《中国工程科学》 2022年 第24卷 第3期   页码 80-88 doi: 10.15302/J-SSCAE-2022.03.009

摘要：

本文从“双碳”目标背景和氢能在我国构建清洁低碳、安全高效现代能源体系中的作用出发，系统梳理了全球氢能产业的进展情况，从氢能产业规模、产业特点、产业政策等方面分析了我国氢能源产业的发展现状、发展需求和面临的主要问题。当前，我国氢能产业战略布局不断强化，氢能基础设施领域投资逐步开展，区域产业集聚效应初步显现，但存在标准体系不健全、产业同质化苗头显现、产业链尚未打通且应用场景单一等挑战。研究建议：进一步加强氢能产业发展顶层设计，系统构建制氢、储氢及用氢技术标准体系，加大氢能全产业链的试点示范与推广，提升氢能科技创新，实现高水平自立自强，进而推动我国氢能产业高质量发展。

关键词： 氢能全产业链；碳中和；碳达峰；制氢；供氢；用氢    

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The opportunity of membrane technology for hydrogen purification in the power to hydrogen (P2H) roadmap

Hiep Thuan Lu, Wen Li, Ehsan Soroodan Miandoab, Shinji Kanehashi, Guoping Hu

《化学科学与工程前沿（英文）》 2021年 第15卷 第3期   页码 464-482 doi: 10.1007/s11705-020-1983-0

摘要： The global energy market is in a transition towards low carbon fuel systems to ensure the sustainable development of our society and economy. This can be achieved by converting the surplus renewable energy into hydrogen gas. The injection of hydrogen (≤10% v/v) in the existing natural gas pipelines is demonstrated to have negligible effects on the pipelines and is a promising solution for hydrogen transportation and storage if the end-user purification technologies for hydrogen recovery from hydrogen enriched natural gas (HENG) are in place. In this review, promising membrane technologies for hydrogen separation is revisited and presented. Dense metallic membranes are highlighted with the ability of producing 99.9999999% (v/v) purity hydrogen product. However, high operating temperature (≥300 °C) incurs high energy penalty, thus, limits its application to hydrogen purification in the power to hydrogen roadmap. Polymeric membranes are a promising candidate for hydrogen separation with its commercial readiness. However, further investigation in the enhancement of H /CH selectivity is crucial to improve the separation performance. The potential impacts of impurities in HENG on membrane performance are also discussed. The research and development outlook are presented, highlighting the essence of upscaling the membrane separation processes and the integration of membrane technology with pressure swing adsorption technology.

关键词： power to hydrogen     membrane technology     hydrogen     energy    

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Evaluating the impact of sulfamethoxazole on hydrogen production during dark anaerobic sludge fermentation

《环境科学与工程前沿（英文）》 2023年 第17卷 第1期 doi: 10.1007/s11783-023-1607-2

摘要：

● SMX promotes hydrogen production from dark anaerobic sludge fermentation.

关键词： Sulfamethoxazole     Hydrogen production     Dark anaerobic fermentation     Waste activated sludge    

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Therapeutic application of hydrogen sulfide donors: the potential and challenges

null

《医学前沿（英文）》 2016年 第10卷 第1期   页码 18-27 doi: 10.1007/s11684-015-0427-6

摘要：

Hydrogen sulfide (H2S), a colorless gas smelling of rotten egg, has long been considered a toxic gas and environment hazard. However, evidences show that H2S plays a great role in many physiological and pathological activities, and it exhibits different effects when applied at various doses. In this review, we summarize the chemistry and biomedical applications of H2S-releasing compounds, including inorganic salts, phosphorodithioate derivatives, derivatives of Allium sativum extracts, derivatives of thioaminoacids, and derivatives of anti-inflammatory drugs.

关键词： hydrogen sulfide     cardiovascular     cancer     hypertension    

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Approaching the commercial threshold of solar water splitting toward hydrogen by III-nitrides nanowires

《能源前沿（英文）》 2024年 第18卷 第1期   页码 122-124 doi: 10.1007/s11708-023-0870-z

摘要： Approaching the commercial threshold of solar water splitting toward hydrogen by III-nitrides nanowires

关键词： threshold solar water     splitting hydrogen III    

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A mini-review of ferrites-based photocatalyst on application of hydrogen production

《能源前沿（英文）》 2021年 第15卷 第3期   页码 621-630 doi: 10.1007/s11708-021-0761-0

摘要： Photocatalytic water splitting for hydrogen production is a promising strategy to produce renewable energy and decrease production cost. Spinel-ferrites are potential photocatalysts in photocatalytic reaction system due to their room temperature magnetization, the high thermal and chemical stability, narrow bandgap with broader visible light absorption, and proper conduction band energy level with strong oxidation activity for water or organic compounds. However, the fast recombination of the photoexcited electrons and holes is a critical drawback of ferrites. Therefore, the features of crystallinity, particle size, specific surface area, morphology, and band energy structure have been summarized and investigated to solve this issue. Moreover, composites construction with ferrites and the popular support of TiO2 or g-C3N4 are also summarized to illustrate the advanced improvement in photocatalytic hydrogen production. It has been shown that ferrites could induce the formation of metal ions impurity energy levels in TiO2, and the strong oxidation activity of ferrites could accelerate the oxidation reaction kinetics in both TiO2/ferrites and g-C3N4/ferrites systems. Furthermore, two representative reports of CaFe2O4/MgFe2O4 composite and ZnFe2O4/CdS composite are used to show the efficient heterojunction in a ferrite/ferrite composite and the ability of resistance to photo-corrosion, respectively.

关键词： photocatalyst     spinel-ferrite     composite     photocatalytic hydrogen production    

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Ductility loss of hydrogen-charged and releasing 304L steel

Yanfei WANG, Jianming GONG, Yong JIANG, Wenchun JIANG, Wang JIANG

《机械工程前沿（英文）》 2013年 第8卷 第3期   页码 298-304 doi: 10.1007/s11465-013-0265-7

摘要：

The mechanical properties and fracture behavior of 304L austenitic stainless steel after cathodic hydrogen charging and hydrogen spontaneously releasing are investigated by tensile tests. Flat tensile specimens were cathodic hydrogen charged at various current densities. For each density, two specimens were charged at the same condition. When the charging process completed, one specimen was tensile immediately to fracture and the other was aged to release the hydrogen out of it and then was also tensile to fracture. The resulting tensile properties and micrographs of fracture surfaces of these specimens were evaluated and compared. The results show ductility loss occurred in the hydrogen-charged specimens and the loss increased as the current density increasing. After hydrogen releasing, the specimens recovered a certain extent but not all of its original ductility. Scanning electron microscope (SEM) micrographs of fracture surfaces reveal that irreversible damage had developed in the hydrogen-releasing specimens during the releasing process rather than the charging process. This consequence can be ascribed to the high tensile stress caused by non-uniform hydrogen distribution during hydrogen releasing.

关键词： hydrogen embrittlement     ductility loss     hydrogen releasing     control strategy     304L austenitic stainless steel    

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标题 作者 时间 类型 操作

Layered alkali titanates (ATiO): possible uses for energy/environment issues

期刊论文

A systemic review of hydrogen supply chain in energy transition

期刊论文

Special issue on electrochemical conversion and utilization of hydrogen energy

期刊论文

Organic conjugated polymers and polymer dots as photocatalysts for hydrogen production

期刊论文

Recent advances of small-molecule fluorescent probes for detecting biological hydrogen sulfide

期刊论文

Production of hydrogen from fossil fuel: A review

期刊论文

Bilayer borophene: an efficient catalyst for hydrogen evolution reaction

期刊论文

Hydrogen Storage Performance During Underground Hydrogen Storage in Depleted Gas Reservoirs: A Review

Lingping Zeng,Regina Sander,Yongqiang Chen,Quan Xie,

期刊论文

我国氢能产业发展战略研究

凌文,李全生,张凯

期刊论文

The opportunity of membrane technology for hydrogen purification in the power to hydrogen (P2H) roadmap

Hiep Thuan Lu, Wen Li, Ehsan Soroodan Miandoab, Shinji Kanehashi, Guoping Hu

期刊论文

Evaluating the impact of sulfamethoxazole on hydrogen production during dark anaerobic sludge fermentation

期刊论文

Therapeutic application of hydrogen sulfide donors: the potential and challenges

null

期刊论文

Approaching the commercial threshold of solar water splitting toward hydrogen by III-nitrides nanowires

期刊论文

A mini-review of ferrites-based photocatalyst on application of hydrogen production

期刊论文

Ductility loss of hydrogen-charged and releasing 304L steel

Yanfei WANG, Jianming GONG, Yong JIANG, Wenchun JIANG, Wang JIANG

期刊论文