An analysis of the hydrogen energy knowledge base with a focus on metal hydride-based solid-state hydrogen storage application

Application of machine learning to thermal management of solid-state hydrogen storage: A comprehensive review

The world is moving toward sustainable and low-carbon energy systems, which means we need hydrogen storage solutions that are safe, scalable, and cost-effective. Among several methods, solid-state hydrogen storage has become a promising alternative to traditional gaseous and liquid storage methods because it has a higher gravimetric capacity, is more stable, and is safer. This chapter delineates a computational analysis of perovskite hydrides XYH3 (X = Li, Na, K) employing first-principles density functional theory (DFT). The study thoroughly investigates their structural, electrical, optical, and mechanical properties to assess their viability for hydrogen storage applications. LiYH3, NaYH3, and KYH3 have lattice constants of 4.42 Å, 4.30 Å, and 4.41 Å, and their gravimetric hydrogen storage capacities are 3.06 wt%, 2.64 wt%, and 2.31 wt%, respectively. Thermodynamic study showed that the formation enthalpies were negative (−16.19 eV, −13.54 eV, and − 9.13 eV), which confirmed their stability. The Gibbs free energy values at 1000 K were also still good (−0.51 eV, −0.69 eV, and − 1.48 eV). The mechanical investigation showed that Young’s moduli were 27.59 GPa, 52.19 GPa, and 49.29 GPa, and all of the compounds were brittle (B/G < 1.75). Optical tests revealed significant absorption peaks between 26 and 29 eV, underscoring their suitability for optoelectronic applications. These findings underscore that perovskite hydrides are promising candidates for next-generation hydrogen storage devices, providing computationally informed design principles that enhance experimental initiatives. This combination of simulation and materials engineering helps create solid-state hydrogen storage solutions that are efficient, long-lasting, and cheap, which is important for the growth of the hydrogen economy.

As a kind of clean energy, hydrogen energy has great potential to reduce environmental pollution and provide efficient energy conversion, and the key to its efficient utilization is to develop safe, economical and portable hydrogen storage technology. At present, hydrogen storage technology lags behind hydrogen production and use, which is the bottleneck restricting the development of hydrogen energy. In this paper, several current solid-state hydrogen storage methods are reviewed, including hydrate hydrogen storage, alloy hydrogen storage and MOF hydrogen storage. At the hydrogen storage density level, the hydrogen storage capacity of 1K-MOF-5 can reach 4.23 wt% at 77 K and 10 MPa, and remains basically unchanged in 20 isothermal adsorption and desorption experiments. At the level of temperature and pressure of hydrogen storage, the alloy can realize hydrogen storage under ambient conditions. At the economic level, the cost of hydrogen storage in hydrates is only USD 5–8 per kilogram, with almost zero carbon emissions. Through the analysis, it can be seen that the above solid-state hydrogen storage technologies have their own advantages. Although hydrate hydrogen storage is lower than alloy materials and MOF materials in hydrogen storage density, it still has huge potential for utilization space because of its low cost and simple preparation methods. This paper further provides a comprehensive review of the existing challenges in hydrate research and outlines prospective directions for the advancement of hydrogen storage technologies.

As the importance of hydrogen energy in the global clean energy system becomes increasingly prominent, how to store hydrogen efficiently, safely and economically has become the core bottleneck restricting its large-scale application. This study takes three mainstream hydrogen storage methods, namely high-pressure hydrogen storage, liquid hydrogen storage and solid-state hydrogen storage, as the research objects, and comprehensively compares their advantages and disadvantages in terms of energy density, safety and economy. Through systematic literature review and case analysis, the study finds that high-pressure hydrogen storage has a relatively high mass energy density and technical maturity, and is suitable for mobile transportation scenarios, but its volume efficiency is low and there is a risk of high-pressure leakage; liquid hydrogen storage has the highest volume energy density and is suitable for large-scale transportation, but the liquefaction process has high energy consumption and the equipment cost is expensive; solid-state hydrogen storage performs best in terms of safety and is particularly suitable for portable applications, but the hydrogen storage materials are expensive and the technology is not yet mature. Based on the above comparison, this study proposes suggestions for multi-scenario collaborative optimization and looks forward to the future development direction of hydrogen storage technology.

Carbon-based materials for Mg-based solid-state hydrogen storage strategies

The global shift toward renewable and green energy highlights the critical role of green energy materials in achieving sustainability goals. This paper focuses on how these materials contribute to the three pillars of sustainability: environmental, economic, and social, in alignment with the United Nations Sustainable Development Goals (SDGs). Green energy materials, including photovoltaic materials, thermoelectric materials, electrochemical storage materials, and other materials appear to play a vital role in meeting these pillars. It is found that using these materials, green and renewable energy is projected to contribute up to 55% of global electricity use by 2030. Green energy materials have achieved the three pillars of sustainability. Environmentally, they help to mitigate climate change, reduce greenhouse gas emissions, and protect ecosystems. Economically, these materials foster innovation, create jobs and opportunities, and stimulate economic growth within the green energy sector. Socially, they improve the living standards by providing access to clean energy, reducing health risks, while supporting the development of sustainable cities and communities. By aligning with sustainable development goals, such as clean water, climate action, economic growth, and affordable energy, green energy materials are necessary for achieving a sustainable future. Despite these advances, widespread adoption remains hindered by economic, policy, and technological barriers. Therefore, there is a need for integrative policies, improved lifecycle analysis, and inclusive access to green energy technologies to ensure equitable transition and global sustainability.

The strategic priority of promoting healthier populations with 1 billion more people enjoying better health and well-being as expressed in the General Programme of Work (GPW) 13 by the World Health Organization (WHO) emphasizes the need of multisectoral action to address the social and environmental determinants of health including climate change. WHO data from 2016 show that approximately one quarter of the global burden of disease are caused by known avoidable environmental risks to health, with at least 12.6 million premature deaths every year. Out of this total, 7 million deaths a year are attributable to both ambient and household air pollution, placing it among the top global preventable health risks. As human influence on the environment continues to grow, global environmental challenges will escalate, including climate change and rapid urbanization. Many of the resulting risks exacerbate disease and injuries, while impacting our quality of life, reducing our productivity, and weighing on our health systems. The global endorsement of the sustainable development agenda with its Sustainable Development Goals (SDGs) provides a clear signal that the world expects greater cohesion between people and the planet, with benefits for health and health equity. More sustainable ways of functioning go hand in hand with creating healthier and more sustainable environments, with enhanced focus on prevention through action on the root causes of disease. The SDGs set a broad agenda to advance health and equity by 2030. Health is centrally positioned within the SDGs, with SDG 3 - Ensure healthy lives and promote well-being for all ages. However, achieving this goal means more than just improving health care. It involves action in key economic development sectors, like housing and transport, as well as in the settings where people live and work in cities and rural areas. These areas are covered by SDGs such as: Achieving Affordable and Clean Energy (SDG 7), Sustainable Cities and Communities (SDG 11), and Climate action (SDG 13). Progress on these SDGs will not only significantly reduce but also support primary prevention of some of the world's most serious disease threats - including heart and lung diseases, cancers, stroke, injuries, and more. At the workshop different topics and tools that support the achievement of WHOs one billion goal of achieving healthier populations and through this the SDGs will be discussed. Key messages By addressing environmental health risks through progress on SDGs supports also the 1 billion goal to achieve healthier populations. Multisectoral action and turning this action into everyday practice is needed to support achieving the SDGs and the 1 billion goal of WHO.

The Sustainable Development Goals (SDGs) aim at providing a healthier planet for present and future generations. At the most recent SDG summit held in 2019, Member States recognized that the achievements accomplished to date have been insufficient to achieve this mission. This paper presents a comprehensive literature review of 227 documents contextualizing outdoor lighting with SDGs, showing its potential to resolve some existing issues related to the SDG targets. From a list of 17 goals, six SDGs were identified to have relevant synergies with outdoor lighting in smart cities, including SDG 3 (Good health and well-being), SDG 11 (Sustainable cities and communities), SDG 14 (Life below water) and SDG 15 (Life on land). This review also links efficient lighting roles partially with SDG 7 (Affordable and clean energy) and SDG 13 (Climate action) through Target 7.3 and Target 13.2, respectively. This paper identifies outdoor lighting as a vector directly impacting 16 of the 50 targets in the six SDGs involved. Each section in this review discusses the main aspects of outdoor lighting by a human-centric, energy efficiency and environmental impacts. Each aspect addresses the most recent studies contributing to lighting solutions in the literature, helping us to understand the positive and negative impacts of artificial lighting on living beings. In addition, the work summarizes the proposed solutions and results tackling specific topics impacting SDG demands.

The adoption of the 2030 Agenda and its 17 Sustainable Development Goals (SDGs) contribute to addressing the multiple and complex challenges faced by humankind. In particular, the increasing impact of climate change and globalization represent a great challenge for the sustainable development of Arctic countries and efforts are needed to measure, assess, and compare the progress toward SDGs and the trends in this region. This study used 69 indicators closely related to Arctic countries and a composite indicator approach to assess their sustainability performance. SDG interlinkages were also assessed through Spearman's rank order correlation. The results showed that the sustainable development of Arctic countries gradually improved from 2000 to 2020, with increasing scores recorded for 82% of the goals and 73% of the indicators. Overall, significant progress was observed in the SDG 10 (reduction of inequality), SDG 3 (health improvement), and SDG 4 (quality of education). The highest-ranking scores were obtained for poverty reduction (SDG 1), SDG 3, and climate actions (SDG 13) in 2020. Over the 21-year period, Sweden reached the highest overall score for sustainable development, and Russia showed the greatest improvement. Synergies dominated over trade-offs among and within SDGs. SDGs 1, 3, 9, 10, and 11 presented a relatively higher proportion of synergies, while higher proportions of trade-offs were observed for the 8–9, 8–11, 3–12, and 10–12 SDG pairs. The associations of industry development with clean energy use and environmental conservation were strengthened during the study period. However, the performance varied greatly for different indicators, goals, and their correlations among Arctic countries. The results indicate that the main challenges for these countries in relation to SDGs consist in promoting an inclusive economic model as well as sustainable consumption and production patterns.

Soft robotics technology can aid in achieving United Nations’ Sustainable Development Goals (SDGs) and the Paris Climate Agreement through development of autonomous, environmentally responsible machines powered by renewable energy. By utilizing soft robotics, we can mitigate the detrimental effects of climate change on human society and the natural world through fostering adaptation, restoration, and remediation. Moreover, the implementation of soft robotics can lead to groundbreaking discoveries in material science, biology, control systems, energy efficiency, and sustainable manufacturing processes. However, to achieve these goals, we need further improvements in understanding biological principles at the basis of embodied and physical intelligence, environment-friendly materials, and energy-saving strategies to design and manufacture self-piloting and field-ready soft robots. This paper provides insights on how soft robotics can address the pressing issue of environmental sustainability. Sustainable manufacturing of soft robots at a large scale, exploring the potential of biodegradable and bioinspired materials, and integrating onboard renewable energy sources to promote autonomy and intelligence are some of the urgent challenges of this field that we discuss in this paper. Specifically, we will present field-ready soft robots that address targeted productive applications in urban farming, healthcare, land and ocean preservation, disaster remediation, and clean and affordable energy, thus supporting some of the SDGs. By embracing soft robotics as a solution, we can concretely support economic growth and sustainable industry, drive solutions for environment protection and clean energy, and improve overall health and well-being.

Biochemistry is foundational to advances in health, nutrition, energy, and environmental remediation—domains central to the Sustainable Development Goals (SDGs). Universities are uniquely positioned to translate biochemical discoveries into SDG-relevant innovations because they combine research capacity, workforce training, core laboratories, and partnerships with health systems, industry, and communities. However, the contribution of biochemistry research to SDG attainment is often described in broad terms rather than organized into assessable pathways, evidence standards, and responsible innovation practices. This article synthesizes peer-reviewed literature and authoritative sources (≤2024) to develop a typology of SDG-linked biochemistry research themes, a research-to-impact pipeline, and a practical roadmap for higher education institutions. Using a framework-synthesis method, we integrate evidence from green chemistry and biocatalysis (Anastas & Warner, 1998; Sheldon, 2007; Alcántara et al., 2022; Woodley, 2022), enzyme catalysis aligned to SDGs (Holtmann et al., 2023), biosensors for environmental monitoring (Huang et al., 2023), foodomics and metabolomics for nutrition and sustainable diets (Mahato et al., 2024), biotechnology-enabled plastic biodegradation and upcycling (Rezaei et al., 2024; Ruginescu & Panaitescu, 2024), and sustainable laboratory practices as an institutional responsibility (Freese et al., 2024). Results are presented as two conceptual figures, three implementation tables, and a set of institutional metrics covering SDG alignment, technology readiness, life-cycle thinking, equity, and research footprint reduction. The synthesis indicates that biochemistry research can contribute directly to SDG 2 (Zero Hunger), SDG 3 (Good Health and Well-being), SDG 6 (Clean Water and Sanitation), SDG 7 (Affordable and Clean Energy), SDG 9 (Industry, Innovation and Infrastructure), SDG 12 (Responsible Consumption and Production), SDG 13 (Climate Action), and SDGs 14–15 (Life Below Water/Life on Land), while universities additionally influence SDG 4 (Quality Education) and SDG 17 (Partnerships). We conclude with guidance for designing SDG-oriented research portfolios, strengthening translational capacity, and ensuring responsible, low-footprint research practices in biochemistry.

Sorption properties of nanostructured ball-milled porous silicon for solid-state hydrogen storage up to 80 bar

The effectiveness of eco-taxation in driving green innovation and sustainability in the European Union (EU) remains a contested issue, with critics arguing that it may burden businesses and compromise competitiveness. This study examines how eco-taxation and financial development interact to influence green innovation and environmental sustainability across EU member states, while accounting for the moderating effect of economic growth. Panel data spanning 2010 to 2022 is used, and the System Generalised Method of Moments (GMM) estimator is employed to tackle endogeneity and dynamic relationships. The findings reveal that eco-taxation significantly promotes green innovation, especially in financially developed economies. Moreover, economic growth supports sustainability when aligned with robust environmental policies, but may lead to resource stress in their absence. By situating the findings within the framework of the United Nations Sustainable Development Goals (SDGs), the study contributes to SDG 7 (Affordable and Clean Energy), SDG 8 (Decent Work and Economic Growth), SDG 9 (Industry, Innovation and Infrastructure), SDG 12 (Responsible Consumption and Production), SDG 13 (Climate Action), and SDG 17 (Partnerships for the Goals). Specifically, it advocates for integrated policy frameworks that align eco-taxation with green finance (SDG 8 & 9), innovation strategies (SDG 9), sustainable production and resource efficiency (SDG 12), and climate resilience (SDG 13). Furthermore, it underscores the role of targeted R&D investments, enhanced financial instruments, and strengthened public–private partnerships (SDG 17) in supporting the EU's green transition while preserving economic resilience.

Interior architecture has the potential to create social benefits by designing spaces that affect people's quality of life. The Sustainable Development Goals (SDGs) offer a framework to comprehend the profession's social and environmental responsibilities, and develop strategic approaches. This study aims to assess how the social impact of interior design aligns with the SDGs, offering an opportunity to explore the relation between discipline and sustainability in a comprehensive manner, considering both environmental and social dimensions. The profession's relations and contribution to the goals was evaluated through a review of current literature. To this end, the year 2015, when the Sustainable Development Goals were adopted, was chosen as the starting point and a bibliometric analysis of studies in the Web of Science database between 2015 and 2023 was carried out. In addition to the analysis function of the WOS database, the bibliometric analysis program Vosviewer was used for data analysis. The results of the analysis show that interior design has a strong relationship with goals such as Climate Action (SDG 13), Sustainable Cities and Communities (SDG 11), Responsible Consumption and Production (SDG 12), Good Health and Well-Being (SDG 3), and Affordable and Clean Energy (SDG 7). However, the relationships between Quality Education (SDG 4), Gender Equality (SDG 5) and Reduced Inequalities (SDG 10) are not yet at a sufficient level. The findings indicate that interior architecture has the potential to fulfill its social responsibility by supporting the Sustainable Development Goals. Furthermore, in order to foster a more inclusive relationship with the SDGs, Interior Architecture needs to evolve. It is expected that this will enable to create new perspectives and methodologies, both in professional practice and in the academic literature.

The relationships of SDG 12 (responsible consumption and production) with other sustainable development goals (SDGs), both direct and indirect, necessitate a systematic analysis to understand its pivotal role in achieving other SDGs. This work focuses on a threefold investigation through a scientometric framework. Initially, the study sought to map and analyze the naturally formed linkages between SDG 12 and other SDGs by examining the literature specifically devoted to SDG 12, thereby revealing the SDGs that are strongly linked to SDG 12. The subsequent phase of the investigation identified prominent topics related to SDG 12 that require detailed exploration. Finally, the selected topics are mined through a methodical approach termed flow vergence gradient analysis, allowing for the revelation of significant contributions within each topic. Through the analysis of the SDG linkage map, SDG 13 (climate action), SDG 7 (affordable and clean energy), SDG 11 (sustainable cities and communities), and SDG 15 (life on land), among others, were recognized as closely linked to SDG 12. Following this identification, five major topics—Industrial Symbiosis, Electronic waste, Carbon emissions, Life Cycle Assessment, and Green products—were deemed suitable for comprehensive mining to extract pivotal contributions. As policy recommendations, adopting a multifaceted approach to e-waste management and sustainable practices is imperative. Implementing consumption-based accounting (CBA) to achieve SDG 12 holistically will be useful. Businesses must align with circular economy principles, minimize hazardous materials, and adhere to low-emission, green supply chain practices. The emphasis is also on the need for proactive R&D collaboration with academia to meet SDG 12 targets, alongside engaging in community awareness through corporate social responsibility initiatives.