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184 Results Found

  • Article
  • Open Access
36 Citations
8,022 Views
19 Pages

The Green Hydrogen Puzzle: Towards a German Policy Framework for Industry

  • Lena Tholen,
  • Anna Leipprand,
  • Dagmar Kiyar,
  • Sarah Maier,
  • Malte Küper,
  • Thomas Adisorn and
  • Andreas Fischer

15 November 2021

Green hydrogen will play a key role in building a climate-neutral energy-intensive industry, as key technologies for defossilising the production of steel and basic chemicals depend on it. Thus, policy-making needs to support the creation of a market...

  • Article
  • Open Access
145 Views
36 Pages

2 July 2026

Hydrogen has become a strategic component of the energy transition and decarbonization. In China, province-level administrative regions have issued many hydrogen-related policies, but existing research has paid limited attention to how these policy t...

  • Article
  • Open Access
46 Citations
7,094 Views
21 Pages

26 June 2023

The green hydrogen industry, highly efficient and safe, is endowed with flexible production and low carbon emissions. It is conducive to building a low-carbon, efficient and clean energy structure, optimizing the energy industry system and promoting...

  • Article
  • Open Access
19 Citations
5,238 Views
24 Pages

9 January 2023

To accelerate clean energy transition, China has explored the potential of hydrogen as an energy carrier since 2001. Until 2020, 49 national hydrogen policies were enacted. This paper explores the relevance of these policies to the development of the...

  • Article
  • Open Access
17 Citations
7,371 Views
24 Pages

10 January 2022

Many countries, including China, have implemented supporting policies to promote the commercialized application of green hydrogen and hydrogen fuel cells. In this study, a system dynamics (SD) model is proposed to study the evolution of hydrogen dema...

  • Article
  • Open Access
23 Citations
8,617 Views
19 Pages

13 September 2022

To provide an effective energy transition, hydrogen is required to decarbonize the hard-to-abate industries. As a case study, this paper provides a holistic view of the hydrogen energy transition in the United Arab Emirates (UAE). By utilizing the di...

  • Review
  • Open Access
1 Citations
833 Views
41 Pages

11 March 2026

Renewable hydrogen is increasingly promoted as a key component of sustainable low-emission energy systems; however, its realistic role remains highly dependent on national system conditions. This review examines under what circumstances renewable hyd...

  • Article
  • Open Access
16 Citations
4,912 Views
16 Pages

Hydrogen Revolution in Europe: Bibliometric Review of Industrial Hydrogen Applications for a Sustainable Future

  • Diego Vergara,
  • Pablo Fernández-Arias,
  • Georgios Lampropoulos and
  • Álvaro Antón-Sancho

25 July 2024

Industrial applications of hydrogen are key to the transition towards a sustainable, low-carbon economy. Hydrogen has the potential to decarbonize industrial sectors that currently rely heavily on fossil fuels. Hydrogen, with its unique and versatile...

  • Article
  • Open Access
412 Views
37 Pages

16 April 2026

Hydrogen energy has emerged as a strategic pathway for decarbonization, industrial transformation, and energy security across major economies. This study does not directly evaluate ex post policy outcomes. Instead, it develops a Four-Dimensional Gove...

  • Review
  • Open Access
57 Citations
13,830 Views
39 Pages

Green hydrogen is gaining recognition as a viable substitute for fossil fuels, presenting a sustainable solution for global decarbonization. While significant progress has been made in hydrogen production, storage, and utilization, there remains a cr...

  • Review
  • Open Access
36 Citations
8,107 Views
23 Pages

21 February 2023

Fuel cells, as key carriers for hydrogen energy development and utilization, provide a vital opportunity to achieve zero-emission energy use and have thus attracted considerable attention from fundamental research to industrial application levels. Co...

  • Review
  • Open Access
154 Citations
26,402 Views
17 Pages

Sustainable Aviation—Hydrogen Is the Future

  • Talal Yusaf,
  • Louis Fernandes,
  • Abd Rahim Abu Talib,
  • Yazan S. M. Altarazi,
  • Waleed Alrefae,
  • Kumaran Kadirgama,
  • Devarajan Ramasamy,
  • Aruna Jayasuriya,
  • Gordon Brown and
  • Mohamd Laimon
  • + 3 authors

5 January 2022

As the global search for new methods to combat global warming and climate change continues, renewable fuels and hydrogen have emerged as saviours for environmentally polluting industries such as aviation. Sustainable aviation is the goal of the aviat...

  • Article
  • Open Access
8 Citations
3,159 Views
23 Pages

1 November 2023

To achieve carbon neutrality in Japan by 2050, renewable energy needs to be used as the main energy source. Based on the constraints of various renewable energies, the importance of hydrogen cannot be ignored. This study aimed to investigate the diff...

  • Article
  • Open Access
19 Citations
4,317 Views
25 Pages

25 August 2023

The energy production market based on hydrogen technologies is an innovative solution that will allow the industry to achieve climate neutrality in the future in Poland and in the world. The paper presents the idea of using hydrogen as a modern energ...

  • Article
  • Open Access
5 Citations
6,539 Views
28 Pages

This study examines hydrogen production across 27 European countries, highlighting disparities due to varying energy policies and industrial capacities. Germany leads with 109 plants, followed by Poland, France, Italy, and the UK. Mid-range contribut...

  • Article
  • Open Access
19 Citations
3,851 Views
20 Pages

6 August 2022

Culminating two decades of industrial planning, China is now officially moving full steam ahead towards realizing a hydrogen economy under the country’s first ever Medium and Long-term Plan of the Hydrogen Industry (2021–2035). Among the...

  • Review
  • Open Access
11 Citations
5,153 Views
39 Pages

29 January 2025

The European Union continues to lead global efforts toward climate neutrality by developing a cohesive regulatory and market framework for alternative fuels, including renewable hydrogen. This review article critically examines the recent evolution o...

  • Article
  • Open Access
4 Citations
1,867 Views
21 Pages

8 January 2025

Integrating coal-to-hydrogen production with Carbon Capture, Utilization, and Storage (CCUS) is essential for reducing greenhouse gas emissions and facilitating a shift towards a more sustainable energy paradigm. This paper explores the diffusion of...

  • Review
  • Open Access
5 Citations
4,184 Views
21 Pages

Toward to Hydrogen Energy of Electric Power: Characteristics and Main Case Studies in Shenzhen

  • Zhijun Deng,
  • Jinqiao Du,
  • Jie Tian,
  • Zhenning Gan,
  • Bingjie Wang and
  • Chen Zhao

28 February 2023

China has pledged that it will strive to achieve peak carbon emission by 2030 and realize carbon neutrality by 2060, which has spurred renewed interest in hydrogen for widespread decarbonization of the economy. Hydrogen energy is an important seconda...

  • Review
  • Open Access
1,560 Views
21 Pages

12 February 2026

The refining and petrochemical industries play an extremely important role in meeting society’s needs by providing products essential for various economic activities. Due to their dependence on fossil fuels (coal, crude oil, and natural gas), u...

  • Review
  • Open Access
13 Citations
4,738 Views
30 Pages

31 July 2024

Climate change has become a major agenda item in international relations and in national energy policy-making circles around the world. This review studies the surprising evolution of the energy policy, and more particularly the energy transition, cu...

  • Article
  • Open Access
5 Citations
3,566 Views
31 Pages

11 June 2024

Currently, the global energy structure is undergoing a transition from fossil fuels to renewable energy sources, with the hydrogen economy playing a pivotal role. Hydrogen is not only an important energy carrier needed to achieve the global goal of e...

  • Article
  • Open Access
4 Citations
4,066 Views
24 Pages

Techno-Economic Assessment of Hydrogen Integration for Decarbonizing the Steel Industry: A Case Study

  • Farhan Haider Joyo,
  • Daniele Groppi,
  • Lorenzo Villani,
  • Irfan and
  • Davide Astiaso Garcia

7 November 2025

The iron and steel industry is one of the largest industrial sources of greenhouse gas emissions. This paper examines the potential of green hydrogen as a reducing agent for decarbonizing primary steel production, focusing on the Taranto integrated s...

  • Article
  • Open Access
1 Citations
2,276 Views
25 Pages

Analysis of Carbon Emissions and Carbon Reduction Benefits of Green Hydrogen and Its Derivatives Based on the Full Life Cycle

  • Lili Ma,
  • Wenwen Qin,
  • Mingyue Hu,
  • Daoshun Zha,
  • Jiadong Xuan,
  • Kaixuan Hou and
  • Tiantian Feng

13 October 2025

Under the constraints of the “dual carbon” goals, accurately depicting the full life cycle carbon footprint of green hydrogen and its derivatives and quantifying the potential for emission reduction is a prerequisite for hydrogen energy p...

  • Review
  • Open Access
789 Views
53 Pages

Hydrogen’s Role in Decarbonising the Global Energy Sector: An Insightful Perspective

  • Nobathembu Faleni,
  • Hassan O. Shoyiga,
  • Noluntu Dyantyi and
  • Raymond Taziwa

The intensifying climate problem requires substantial decarbonisation in the energy, industry, and transportation sectors, with hydrogen recognised as a crucial energy carrier. The increase in global energy consumption, driven by population growth an...

  • Article
  • Open Access
29 Citations
11,944 Views
25 Pages

Water Requirements for Hydrogen Production: Assessing Future Demand and Impacts on Texas Water Resources

  • Ning Lin,
  • Mariam Arzumanyan,
  • Edna Rodriguez Calzado and
  • Jean-Philippe Nicot

7 January 2025

Hydrogen is emerging as a critical component in the global energy transition, providing a low-carbon alternative for sectors such as industry and transportation. This paper aims to comprehensively address water usage in hydrogen production by explori...

  • Article
  • Open Access
15 Citations
5,886 Views
12 Pages

24 December 2021

Leading countries are developing clean energy to replace fossil fuels. In this context, Russia is changing its energy policy towards fostering new energy resources, such as hydrogen and helium. Hydrogen will not only contribute to Russia’s fina...

  • Article
  • Open Access
2 Citations
1,136 Views
23 Pages

10 September 2025

To achieve deep decarbonization in the transportation sector, this study employs life cycle assessment (LCA) and the GREET model to construct baseline and low-carbon scenarios. It simulates the evolution of emissions and energy consumption within Inn...

  • Article
  • Open Access
1,340 Views
34 Pages

Modelling Future Pathways for Industrial Process Heat Decarbonisation in New Zealand: The Role of Green Hydrogen

  • Geordie Reid,
  • Le Wen,
  • Basil Sharp,
  • Mingyue Selena Sheng,
  • Lingli Qi,
  • Smrithi Talwar,
  • John Kennedy and
  • Ramesh Chandra Majhi

2 December 2025

Green hydrogen is a potential enabler of deep decarbonisation for industrial process heat. We assess its role in Aotearoa New Zealand using a bottom-up, least-cost energy-system model based on the integrated MARKAL-EFOM system (TIMES), which includes...

  • Article
  • Open Access
10 Citations
4,198 Views
20 Pages

Promising Technology Analysis and Patent Roadmap Development in the Hydrogen Supply Chain

  • Jiwon Yu,
  • Young Jae Han,
  • Hyewon Yang,
  • Sugil Lee,
  • Gildong Kim and
  • Chulung Lee

31 October 2022

Hydrogen energy, one of the energy sources of the future, represents a substantial issue which affects the industries and national technologies that will develop in the future. In order to utilize hydrogen energy, a hydrogen supply chain is required...

  • Article
  • Open Access
2 Citations
2,453 Views
20 Pages

Chemical Equilibrium Fracture Mechanics (CEFM) studies the effect of chemical reactions and phase transformations on crack-tip fields and material fracture toughness under chemical equilibrium. An important CEFM direction is hydrogen-induced embrittl...

  • Article
  • Open Access
902 Views
32 Pages

18 April 2026

Indonesia has identified clean hydrogen as one of the strategic initiatives for its energy transition, recognizing its potential as an energy carrier that can support the achievement of net zero emissions. To deepen the understanding of this emerging...

  • Article
  • Open Access
1,043 Views
25 Pages

The global energy transition demands solutions that balance intermittent renewable energy generation while decarbonizing heat and power sectors. Hydrogen has appeared as a versatile energy carrier, enabling sector coupling across electricity, heat, a...

  • Review
  • Open Access
25 Citations
7,844 Views
40 Pages

Devices enabling early detection of low concentrations of leaking hydrogen and precision measurements in a wide range of hydrogen concentrations in hydrogen storage systems are essential for the mass-production of fuel-cell vehicles and, more broadly...

  • Review
  • Open Access
69 Citations
12,892 Views
41 Pages

24 June 2024

Accelerating the transition to a cleaner global energy system is essential for tackling the climate crisis, and green hydrogen energy systems hold significant promise for integrating renewable energy sources. This paper offers a thorough evaluation o...

  • Proceeding Paper
  • Open Access
592 Views
9 Pages

Advances in Sustainable Fuel Materials for Industrial Applications: A Systematic Review

  • Erika Paola Acuña Flores,
  • Gustavo Armando Avila Oscurima,
  • César Sebastián Pablo León and
  • Magaly De La Cruz Noriega

The use of fossil fuels in the industry has resulted in a significant environmental impact, contributing to high levels of CO2 emissions. The growing need for sustainable alternatives has driven research into biofuels, hydrogen, and other renewable e...

  • Article
  • Open Access
72 Citations
8,235 Views
22 Pages

27 May 2022

Climate change mitigation efforts are in dire need of greener and more versatile fuel alternatives to fossil fuels. Green hydrogen being both renewable and flexible has the potential to offset fossil fuels as the primary fuel source. Countries around...

  • Article
  • Open Access
6 Citations
2,845 Views
24 Pages

23 July 2025

Green hydrogen, produced via renewable-powered electrolysis, offers a promising path toward deep decarbonisation in energy systems. This study investigates the major technological, infrastructural, and economic challenges facing green hydrogen produc...

  • Article
  • Open Access
4 Citations
10,856 Views
21 Pages

30 December 2024

The European Union’s Carbon Border Adjustment Mechanism (CBAM) has not only accelerated the development of China’s energy policy, but it has also posed new obstacles. This paper aims to explore the influence of CBAM at various phases of i...

  • Article
  • Open Access
48 Citations
9,512 Views
22 Pages

A Roadmap with Strategic Policy toward Green Hydrogen Production: The Case of Iraq

  • Qusay Hassan,
  • Aws Zuhair Sameen,
  • Hayder M. Salman and
  • Marek Jaszczur

16 March 2023

The study proposes a comprehensive framework to support the development of green hydrogen production, including the establishment of legal and regulatory frameworks, investment incentives, and public-private partnerships. Using official and public da...

  • Review
  • Open Access
131 Citations
13,180 Views
28 Pages

An Overview of Challenges for the Future of Hydrogen

  • Md Tanvir Ahad,
  • Md Monjur Hossain Bhuiyan,
  • Ahmed Nazmus Sakib,
  • Alfredo Becerril Corral and
  • Zahed Siddique

13 October 2023

Hydrogen’s wide availability and versatile production methods establish it as a primary green energy source, driving substantial interest among the public, industry, and governments due to its future fuel potential. Notable investment is directed tow...

  • Review
  • Open Access
664 Views
26 Pages

18 April 2026

Energy hydrogen is emerging as a key driver for the deep decarbonization of energy systems in the Americas, particularly in sectors that are difficult to electrify, such as heavy industry, long-distance transportation, and seasonal energy storage. Th...

  • Review
  • Open Access
25 Citations
6,653 Views
21 Pages

Fuel Cell Products for Sustainable Transportation and Stationary Power Generation: Review on Market Perspective

  • Vijai Kaarthi Visvanathan,
  • Karthikeyan Palaniswamy,
  • Dineshkumar Ponnaiyan,
  • Mathan Chandran,
  • Thanarajan Kumaresan,
  • Jegathishkumar Ramasamy and
  • Senthilarasu Sundaram

15 March 2023

The present day energy supply scenario is unsustainable and the transition towards a more environmentally friendly energy supply system of the future is inevitable. Hydrogen is a potential fuel that is capable of assisting with this transition. Certa...

  • Feature Paper
  • Article
  • Open Access
60 Citations
10,438 Views
36 Pages

12 April 2023

The European steel industry is experiencing new challenges related to the market situation and climate policy. Experience from the period of pandemic restrictions and the effects of Russia’s armed invasion of Ukraine has given many countries a...

  • Review
  • Open Access
34 Citations
11,933 Views
23 Pages

Underground Hydrogen Storage in Salt Cavern: A Review of Advantages, Challenges, and Prospects

  • Xiaojun Qian,
  • Shaohua You,
  • Ruizhe Wang,
  • Yunzhi Yue,
  • Qinzhuo Liao,
  • Jiacheng Dai,
  • Shouceng Tian and
  • Xu Liu

26 June 2025

The transition to a sustainable energy future hinges on the development of reliable large-scale hydrogen storage solutions to balance the intermittency of renewable energy and decarbonize hard-to-abate industries. Underground hydrogen storage (UHS) i...

  • Review
  • Open Access
1 Citations
986 Views
31 Pages

6 February 2026

Growing global energy demand and the imperative to reduce greenhouse gas emissions have accelerated interest in low-carbon hydrogen production. This review synthesizes advances at the intersection of electrolysis and biomass pyrolysis, with particula...

  • Review
  • Open Access
12 Citations
14,117 Views
49 Pages

Hydrogen and Japan’s Energy Transition: A Blueprint for Carbon Neutrality

  • Dmytro Konovalov,
  • Ignat Tolstorebrov,
  • Yuhiro Iwamoto and
  • Jacob Joseph Lamb

28 August 2025

This review presents a critical analysis of Japan’s hydrogen strategy, focusing on the broader context of its decarbonization efforts. Japan aims to achieve carbon neutrality by 2050, with intermediate targets including 3 million tons of hydrog...

  • Proceeding Paper
  • Open Access
764 Views
7 Pages

Alternative fuel and greenhouse emissions are always a keen focus for researchers aiming to cater to energy demands. There is an urgent need to find new clean and inexhaustible energy sources. In the past few years, hydrogen has gained attention from...

  • Article
  • Open Access
63 Citations
16,576 Views
34 Pages

This paper provides a system-level and dimensional analysis of green hydrogen, assessing its realistic deployment potential within broader energy transitions. While green hydrogen—produced via electrolysis using renewable electricity—is o...

  • Article
  • Open Access
2 Citations
903 Views
33 Pages

Transitioning to Hydrogen Trucks in Small Economies: Policy, Infrastructure, and Innovation Dynamics

  • Aleksandrs Kotlars,
  • Justina Hudenko,
  • Inguna Jurgelane-Kaldava,
  • Jelena Stankevičienė,
  • Maris Gailis,
  • Igors Kukjans and
  • Agnese Batenko

16 December 2025

Decarbonizing heavy-duty freight transport is essential for achieving climate neutrality targets. Although internal combustion engine (ICE) trucks currently dominate logistics, they contribute substantially to greenhouse gas emissions. Zero-emission...

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