GX & Decarbonization Research

G. E. Olifant, S. Mathetsa

This paper critically examines the environmental and socio-economic impacts of green hydrogen development in South Africa, identifying challenges and opportunities. As Africa's largest GHG emitter, South Africa can use green hydrogen to dec…

Vazquez-Sanchez, Holkan, Zhao, Chengcheng, Echegoyen-Lopez, Monserrat +2

A Python-based techno-economic optimization and life cycle assessment tool for e-hydrogen production, enabling user-defined cost and environmental impact analysis.

Xiaohui Du, Xinyu Li, Jianna Li +1

This review systematically summarizes the application of transition metal chalcogenides (TMCs)/oxides in hydrogen production via seawater electrolysis. It discusses optimization strategies (dopant, heterojunction, defect engineering) and st…

Naveed Anwar, Muhammad Samee Baig, Enfel Barkat +1

This paper compares solar and wind-powered electrolysis systems for green hydrogen production via MATLAB simulations. The wind system produces approximately 110 kg of hydrogen per day with stable output, while the solar system generates 80 …

Iman Baghaei, Mojtaba Mirhosseini, Alireza Zahedi

This study proposes a hybrid GNN-Transformer model for long-term wind speed forecasting critical for green hydrogen site planning. Using NASA climate data, the GNN-Transformer improved MAE by 30% over standard Transformers, while a GNN-GRU …

Ali Sulaiman Alsagri, A. Alrobaian

This review surveys solar dish collectors for hydrogen production, comparing thermochemical cycles, high-temperature electrolysis, and multigeneration systems. It identifies key challenges in materials, integration, and economics for scalin…

Xuerui Wang, Zekun Zhang, Jianbo Zhang +2

This review presents a unified engineering framework for transitioning underground gas storage (UGS) from traditional fossil fuel peak-shaving to large-scale renewable energy storage hubs for hydrogen and CO2. It compares formation adaptabi…

GONG Ziyi, MA Hui, MAO Rui, WANG Xin, MIAO Guixi, YUAN Liang

This paper proposes an optimal scheduling model for an integrated energy system integrating dynamic hydrogen/ammonia co-firing with P2G-CCS coupling. Results show that a fixed 20% co-firing ratio minimizes total cost and emissions, while dy…

Z. Huang, Wei Han, Zepeng Han +1

This study proposes a co-production system for methanol and hydrogen that integrates methane steam reforming and bi-reforming of methane to achieve low carbon emissions. The system aims to improve energy efficiency and reduce greenhouse gas…

Wang Zeng, Heng Zhou, Shengli Wu +2

This study elucidates the mechanism of low-carbon emission reduction in blast furnaces through hydrogen-rich gas injection and DRI (direct reduced iron) burden. It provides technical insights for decarbonizing the steel industry and optimiz…

Haipeng Guo, Hailun Zhou, Mingyang Liu +6

This paper presents a low-temperature fabrication method for carbon papers used in proton exchange membrane fuel cells, achieving high mechanical strength and performance. It contributes to improving fuel cell efficiency and reducing costs.

Yang Fei, Mohammad Fazli, Shibo Kuang +5

This numerical study investigates high-H2 operation and gas injection strategies to improve shaft furnace performance for low-carbon ironmaking. It presents technical pathways for decarbonizing the steel industry.

Jiaqiang Wang, Meiling Yue, Jianwen Meng +1

This paper proposes a two-stage optimal scheduling method for a PEMFC-based combined heat and power system to simultaneously improve economic and low-carbon performance. The first stage performs day-ahead planning, and the second stage adju…

Xiang Yang, Xinghua Liu, Zhongbao Wei +3

This paper proposes a distributionally robust low-carbon economic dispatch model for an electric-hydrogen coupled system under high renewable penetration. It optimizes operating costs and carbon emissions while addressing uncertainty in ren…

Junseok Song, Hosik Hahn, Sunghun Kwak +5

A molten GaBi catalyst enables CO2-free hydrogen production at 500–800°C, with the Ga0.11Bi0.89 alloy showing low activation energy (67.2 kJ/mol) and stable operation for 158 h. A 552 ton H2/day plant achieves superior economic and environm…

Muhammad Haris Azlan, Siti Hasanah Osman, Norazuwana Shaari +4

This paper reviews recent progress in graphitic carbon nitride (g-C3N4) materials for low-temperature fuel cells, analyzing their sustainability and challenges. It discusses catalyst performance improvements and manufacturing hurdles, offer…

Xiang Li, Guandong Wu, Yufei He +1

This study developed a Ru/Al2O3-La-C catalyst to alleviate hydrogen poisoning in low-pressure ammonia synthesis. At 400°C and 3 MPa, it achieved a 10-fold increase in ammonia yield (4.74 mmol NH3·gcat−1·h−1) compared to unmodified catalyst,…

Zhiwei Zhang, Yong Chen, Zhong Xie +4

This study investigates the incorporation of low levels of platinum (Pt) into carbon materials with varying pore structures to enhance the hydrogen evolution reaction (HER). Despite low Pt content, optimized pore structures achieve high cat…

Osamah Siddiqui, Ragad Aldilaijan, Mohammed Albuali +3

This paper presents a membrane-based ammonia cracking process for efficient low-carbon and high-pressure hydrogen production. The method potentially improves energy efficiency and reduces CO2 emissions compared to conventional ammonia crack…

Cinthia Serrato-Arias, Andrew Rowe

This paper provides a comparative techno-economic analysis of methane pyrolysis for low-carbon hydrogen production, evaluating costs and efficiency against conventional methods, highlighting its potential for decarbonizing hydrogen producti…