GX & Decarbonization Research

Chika Umunnawuike, Chika Umunnawuike, S. Q. A. Mahat +9

This paper reviews existing and emerging biohydrogen production technologies, focusing on their mechanisms and influential factors. It aims to contribute to sustainable energy transition by outlining technical challenges and future research…

Thuong Huynh Thi Ngoc, Hien Nguyen Thi My, Hung Nguyen Ngoc +4

This study presents a techno-economic optimization framework for hydrogen-integrated combined cycle power plants under carbon pricing. Using Aspen HYSYS and Particle Swarm Optimization, it evaluates hydrogen blending effects on turbine outp…

von Döllen A.

This paper analyzes the 'CO2 bow wave' phenomenon and argues that green hydrogen alone cannot achieve decarbonization targets. It emphasizes the need for a portfolio of technologies and policies, presenting a colorful vision of the future.

J. Voglar, B. Likozar

Using hourly electricity and solar data from 24 EU countries in 2025, this study analyzes hydrogen storage for solar output smoothing. It estimates a mean overall efficiency of 54.38%, but required hydrogen storage capacity (57.4 Gg) exceed…

Roshni Kumari, Dipti Chaudhary, Anirbid Sircar

This study proposes a novel integration of geothermal power with alkaline electrolysis for green hydrogen production. A transition metal-based electrode system enhances HER kinetics, achieving 99.999% hydrogen purity. Techno-economic analys…

Taichao Lyu, Shuaichi Huo, Tao Zhang

This paper reviews integrated pathways for green hydrogen production using renewable energy, covering technologies, challenges, and economic perspectives. It analyzes technical hurdles and cost competitiveness, outlining a roadmap toward a …

S.A. Adeleye, Olurunshola. O. Z., O. Ipindola +1

This review comprehensively analyzes the status, engineering challenges, and prospects of fuel cells and renewable hydrogen. It compares PEMFC and SOFC characteristics, evaluates hydrogen production, storage, and distribution bottlenecks, a…

Otero, Maria, Sedano, Camilo Andres, Lopez Mejia, Omar D.

This study uses CFD to analyze natural gas-hydrogen co-firing and reburn combustion, examining the effects of hydrogen addition on emissions. Validated against experiments, simulations with 15%, 30%, and 45% hydrogen show reduced CO, CO2, a…

Westra, Iris M., Scheeren, Hubertus A., Penninga, Mareen J. +2

Hydrogen is an indirect greenhouse gas, and quantifying fugitive emissions is crucial for the energy transition. This study optimizes a method using a high-sensitivity GC-PDHID system with UAV and ground sampling, validated through controll…

Massaro, Fabio, Licari, John, Micallef, Alexander +2

This study optimizes the sizing of a Power-to-Hydrogen plant (PEM electrolyzer, hydrogen storage, fuel cell) to mitigate reverse power flows in a distribution network with high PV penetration. A linear optimization model minimizes reverse f…

Rabillard, Lilian, Thappily, Praveen, Matheswaran, Priyadharshini +6

This study experimentally evaluates the performance of 5 kW alkaline electrolyzers for hydrogen production, focusing on the effects of electrode area, electrolyte concentration, temperature, and voltage. The 400 cm2 stack achieved higher cu…

Franco, Alessandro, Martinelli, Elisa, Rocca, Michele +1

This study proposes a decentralized hydrogen production model using PV and low-temperature AEM electrolyzers for small manufacturing and chemical companies. Configurations of 10-100 kW suit chemical labs, offering lower capital costs and op…

García Pérez, Christian David

This study evaluates solar and wind potential in Santander, Colombia, for green hydrogen production via Power-to-X systems, analyzing technical and economic feasibility. Three configurations (solar, wind, hybrid) were assessed using CAPEX, …

Nallapaneni, Manoj Kumar, Lau, Albert, Lam, Jason +2

This paper proposes a multifunctional microgrid (MfMG) integrating membrane distillation for wastewater treatment with Si+ process for low-carbon hydrogen generation, PEM fuel cells for power, and retired batteries for storage. It aims to a…

Darabadi Zare, Ali Akbar, Yari, Mortaza, Nami, Hossein +1

This study proposes an integrated multi-generation system combining steam methane reforming and chemical looping combustion, evaluated thermodynamically and economically. The system supplies 295.3 kW power, 40.3 kg/h hydrogen, and 597 kW he…

Ahmed Yousif AlNofli, Maryam, Sekhar Santhappan, Joseph

This study analyzes the techno-economic feasibility of a solar/wind hybrid system in Dhofar, Oman, to produce hydrogen and electricity for EVs and hydrogen vehicles. Using HOMER Pro, optimal capacities are PV 555 kW, hydrogen tank 150 kg, e…

Kafle, Nawaraj, Phuyal, Tej Prasad, Dhrubabar Singh, K.C +3

This study designs an on-site hydrogen refueling station (OHRS) for a fleet of 10 fuel cell buses in Nepal, using vehicle modeling and route data. It determines a maximum tractive power of 119.85 kW and a daily hydrogen demand of 80 kg, gui…

Cheng W.

This paper compares national hydrogen strategies and assesses their environmental sustainability or 'greenness'. It develops indicators to evaluate policy ambition, targets, and support mechanisms, identifying strategies that are more effec…

Rey J.

This paper provides an overview of green hydrogen, covering resource consumption, technological maturity, and regulatory frameworks. It examines the challenges and opportunities in transitioning to a sustainable hydrogen economy, highlighti…

Masip Macía Y.

This case study examines the potential of a green hydrogen value chain for port operations in the Valparaiso region, Chile. It proposes an integrated approach to hydrogen production, storage, and use to decarbonize port activities, leveragi…