Article
Chemistry, Physical
Jiahui Jin, Mingkai Fu, Lei Wang, Tianzeng Ma, Xin Li, Fei Jin, Yuanwei Lu
Summary: Solar thermochemical (STC) technology utilizes the entire spectrum of solar energy to decompose water to produce hydrogen, but low water-splitting activity of redox materials restricts fuel production efficiency. Research shows that the hydrogen production mechanism of perovskite LaFeO3 is still rarely studied and needs further exploration.
INTERNATIONAL JOURNAL OF HYDROGEN ENERGY
(2021)
Article
Chemistry, Multidisciplinary
Meiling Huang, Zhen Kong, Zizheng Ai, Dong Shi, Mingzhi Yang, Xiaogang Yao, Yongliang Shao, Yongzhong Wu, Xiaopeng Hao
Summary: Twins in crystal defect have a significant impact on the physicochemical properties of semiconductor materials and are applied in catalytic conversion. Researchers have successfully prepared twin Zn1-xCdxS solid solution by limiting mass transport and controlling the release rate of anions/cations, laying a foundation for the construction of other twin crystals. The twin Zn1-xCdxS exhibits superior intracrystalline electron mobility and extracrystalline capacity of water adsorption/dissociation and proton adsorption, leading to a high quantum efficiency for photocatalytic water splitting.
Review
Chemistry, Inorganic & Nuclear
Zhenxing Li, Mingliang Hu, Ping Wang, Jiahao Liu, Jiasai Yao, Chenyu Li
Summary: The article summarizes the design strategies and synthesis methods of various heterojunction catalysts, as well as their applications in the water splitting process. By briefly discussing the current progress in electrocatalytic water splitting, it provides a prospect for the future of heterojunction catalysts in this field.
COORDINATION CHEMISTRY REVIEWS
(2021)
Review
Chemistry, Physical
Shelly Singla, Surbhi Sharma, Soumen Basu, Nagaraj P. Shetti, Tejraj M. Aminabhavi
Summary: This review highlights the environmentally friendly hydrogen production using carbon-based nanomaterials through photochemical and photoelectrochemical processes by water splitting. Various carbon materials like graphene, graphene oxide, carbon nanotubes, graphitic carbon nitride, and fullerenes are discussed for their photocatalytic properties and applications in hydrogen production. The advantages and shortcomings of these materials, along with their production methods and critical discussions, are covered in this article.
INTERNATIONAL JOURNAL OF HYDROGEN ENERGY
(2021)
Review
Chemistry, Multidisciplinary
Qizhu Qian, Yin Zhu, Nazir Ahmad, Yafei Feng, Huaikun Zhang, Mingyu Cheng, Huanhuan Liu, Chong Xiao, Genqiang Zhang, Yi Xie
Summary: Electrochemical water splitting powered by renewable energy sources has attracted interest for high-purity hydrogen production, but is hindered by slow electrode reactions. To address this, a hybrid electrochemical water splitting strategy has been proposed, combining favorable electro-oxidation reactions with hydrogen evolution at the cathode. This review summarizes recent developments in alternative oxidation reactions for efficient and cost-effective hybrid water splitting.
ADVANCED MATERIALS
(2023)
Review
Chemistry, Multidisciplinary
Roozbeh Siavash Moakhar, Seyed Morteza Hosseini-Hosseinabad, Saeid Masudy-Panah, Ashkan Seza, Mahsa Jalali, Hesam Fallah-Arani, Fatemeh Dabir, Somayeh Gholipour, Yaser Abdi, Mohiedin Bagheri-Hariri, Nastaran Riahi-Noori, Yee-Fun Lim, Anders Hagfeldt, Michael Saliba
Summary: This article comprehensively reviews the recent advancements in CuO-based photoelectrodes for PEC water-splitting applications, highlighting their high activity and promising physicochemical properties. Various synthesis methods, characterization techniques, and fundamental factors of CuO-based photoelectrodes are discussed in detail. Additionally, the PEC properties of CuO/2D materials are also evaluated, demonstrating their potential as nanocomposites for photocurrent-generating devices.
ADVANCED MATERIALS
(2021)
Article
Chemistry, Physical
Nuray Kup Aylikci, Suha Orcun Mert, Volkan Aylikci, Ersin Bahceci, Tolga Depci, Onder Oruc
Summary: This study evaluated and compared the hydrogen generation performance of different types of waste aluminum and their pure equivalents through the water-splitting reaction. The best results for micro-hydrogen generation were obtained using pure powder aluminum, while the maximum hydrogen generation rate for beverage can waste in powder form was achieved at 2N alkaline solution.
INTERNATIONAL JOURNAL OF HYDROGEN ENERGY
(2021)
Article
Chemistry, Physical
Hyun Suk Lim, Minkyu Kim, Yikyeom Kim, Hyeon Seok Kim, Dohyung Kang, Minbeom Lee, Ayeong Jo, Jae W. Lee
Summary: This study investigates a core-shell structured Co3O4@LaCoO3 redox catalyst for hydrogen production through chemical looping water splitting. The catalyst improves H2O splitting efficiency by lowering the kinetic barrier and increasing the exothermicity, and enhances H-2 production activity by covering the Co3O4 nanoparticle surface. The core-shell structure prevents aggregation of Co3O4 nanoparticles and leads to superior and sustainable H-2 productivity compared to using only Co3O4 or LaCoO3.
ACS APPLIED ENERGY MATERIALS
(2022)
Article
Energy & Fuels
R. Suresh, Lalitha Gnanasekaran, Saravanan Rajendran, Matias Soto-Moscoso
Summary: A green and sustainable energy resource, hydrogen (H2), can be generated via photocatalytic splitting of water to meet global energy demand and minimize environmental pollution. Doped photocatalysts have been extensively studied for their application in water splitting. The influence of metal/non-metal dopants on the properties of host semiconductors was deduced, and the water splitting capacity of metal and non-metal ions doped photocatalysts was discussed. Different host photocatalysts, experimental conditions, and strategies for enhancing activity were summarized, along with challenges, future directions, and conclusions.
Article
Environmental Sciences
Hyekyung Cho, Hyunku Joo, Hansung Kim, Ji-Eun Kim, Kyoung-Soo Kang, Jaekyung Yoon
Summary: Erbium-doped TiO2 nanotubes exhibit enhanced photo-conversion efficiency and catalytic activity, showing great potential in hydrogen generation and organic wastewater degradation. The study highlights the significant impact of doping conditions on the material's optical and electrical properties, demonstrating the effectiveness of the current electrochemical approach for PEC water splitting.
Review
Energy & Fuels
Jung Eun Lee, Ki-Joon Jeon, Pau Loke Show, Im Hack Lee, Sang-Chul Jung, Yong Jun Choi, Gwang Hoon Rhee, Kun-Yi Andrew Lin, Young-Kwon Park
Summary: Electrochemical water splitting is a feasible and renewable method for hydrogen production, requiring novel materials and technologies to improve efficiency.
Article
Biochemistry & Molecular Biology
Kenneth Fontanez, Diego Garcia, Dayna Ortiz, Paola Sampayo, Luis Hernandez, Maria Cotto, Jose Duconge, Francisco Diaz, Carmen Morant, Florian Petrescu, Abniel Machin, Francisco Marquez
Summary: This study investigates the photocatalytic hydrogen evolution reaction (HER) by water splitting using TiO2 nanowires (TiO(2)NWs) as a catalyst, which was synthesized through a hydrothermal procedure. The catalyst was modified by incorporating different loadings of gold nanoparticles (AuNPs), exfoliated MoS2 nanosheets, and CeO2 nanoparticles (CeO(2)NPs) on the surface. Characterization techniques include electron microscopy, XPS, XRD, Raman, Reflectance, and BET surface area. The results demonstrate a synergistic effect between the different nanomaterials of the catalysts, and increasing the loading of MoS2 and CeO(2)NPs substantially improves the H-2 production.
INTERNATIONAL JOURNAL OF MOLECULAR SCIENCES
(2023)
Review
Chemistry, Inorganic & Nuclear
Duanduan Liu, Wei Wei, Maidina Mahemu, Hao Qin, Kai Zhu, Shicheng Yan, Zhigang Zou
Summary: The solid-state redox couple plays a crucial role in electrochemical water splitting, facilitating OER kinetics, decoupling HER and OER, and supporting combined electrochemical-thermochemical water splitting. These new ideas open up vast potential for utilizing redox-couple-mediated water splitting in storing intermittent and fluctuating energy derived from renewable sources.
DALTON TRANSACTIONS
(2021)
Article
Nanoscience & Nanotechnology
Byung Keun Kim, Myung Jun Kim, Jae Jeong Kim
Summary: This study found that increasing the hydrophilicity of the electrocatalyst surface helps reduce the size of gas bubbles and shorten their duration, promoting the hydrogen evolution reaction and lowering the overpotential at a given current density.
ACS APPLIED MATERIALS & INTERFACES
(2021)
Review
Chemistry, Multidisciplinary
Cheng Wang, Hongyuan Shang, Liujun Jin, Hui Xu, Yukou Du
Summary: Seawater is a promising electrolyte for industrial hydrogen production and refining of edible salt. Efficient and stable electrocatalysts are essential for water electrolysis, leading to significant achievements in recent years.