Article
Thermodynamics
Kaiyu Xie, Ali Reza Kamali
Summary: This article discusses a low-cost and green method for producing hydrogen at high temperatures with a reduced voltage requirement, providing crucial insights for further development of molten salt technologies for clean and efficient hydrogen production.
ENERGY CONVERSION AND MANAGEMENT
(2022)
Article
Chemistry, Physical
Jing Wang, Juanxiu Xiao, Yijun Shen, Xinxin Liang, Teng Lv, Wei Xiao
Summary: The study demonstrates a method for preparing high-performance photocatalysts using biomass, converting rice husks and silver chloride into SiC/C/Ag through a molten-salt electrochemical biorefinery. The process effectively reduces carbon footprint and enhances CO2 photoreduction efficiency.
JOURNAL OF MATERIALS CHEMISTRY A
(2021)
Article
Engineering, Multidisciplinary
Yong Cao, Jian Li, Peng Yang, KaiYuan Wei, ShiPing Ma, XiaoQiang Zhang, MeiFen Wu, XiaoJiang Liu, YanHua Cui, ZhaoYin Wen
Summary: The study found that an unexpected ionic exchange reaction between NiCl2 and LiBr in LiF-LiCl-LiBr caused a decrease in conductivity, leading to poor thermal battery performance. Using LiF-LiCl-Li2SO4 as a new electrolyte without LiBr significantly improved the electrochemical performance of the NiCl2 cathode.
SCIENCE CHINA-TECHNOLOGICAL SCIENCES
(2021)
Article
Materials Science, Ceramics
Maher T. Alshamkhani, Pooya Lahijani, Keat Teong Lee, Abdul Rahman Mohamed
Summary: In this study, the switching voltage technique was used to efficiently exfoliate graphite in eutectic molten salts. The exfoliated graphene samples exhibited high production yields, low ID/IG ratios, and good electrical conductivities. Compared to constant voltage exfoliation, the switching voltage technique produced smoother graphene flakes with less agglomeration, crumbling, and wrinkling. Characterization analysis confirmed the smaller crystallite size, lower thickness, and higher quality and purity of the exfoliated graphene prepared using the switching voltage technique.
CERAMICS INTERNATIONAL
(2022)
Article
Chemistry, Multidisciplinary
Wei Han, Wei Wang, Haiming Li, Yingcai Zhao, Yijie Wang, Rugeng Liu, Mei Li
Summary: The study investigated the electro-reduction mechanisms of recovering zirconium from LiCl-KCl molten salt using W and Fe electrodes, finding that a two-step process formed metallic Zr on the W electrode and a one-step process formed various Zr-Fe alloy compounds on the Fe film electrode. The deposition potentials of Zr-Fe intermetallics were more positive than those of Zr(II)/Zr and Zr(IV)/Zr(II) pairs, and dynamic and thermodynamic data showed different properties for Zr and Zr-Fe alloys at various temperatures. Recovery of Zr using Fe electrode proved successful, producing ZrFe2 intermetallic compounds with high efficiency.
ACS SUSTAINABLE CHEMISTRY & ENGINEERING
(2021)
Article
Chemistry, Multidisciplinary
Xianglin Liu, Yuanpeng Yao, Wenting Li, Yu Zhang, Ze Liu, Huayi Yin, Dihua Wang
Summary: In this work, Co2B/MoB2 heterostructured nanoclusters were prepared and used as highly efficient hydrogen evolution reaction (HER) catalysts. The optimized Co2B/MoB2 catalyst exhibited low overpotentials and long-term catalytic stability in both acidic and alkaline environments. The modified electronic structure at the Co2B/MoB2 heterointerface played a crucial role in enhancing the HER activity. Density functional theory calculations supported the experimental results and provided insights into the catalytic mechanism.
Article
Electrochemistry
Liam Witteman, Kerry Rippy, Patrick Taylor, Judith Vidal
Summary: This study investigates the electrochemical behavior of MgOH+ reduction on a tungsten cathode in molten chloride salt. The formation of MgOH+ within the salt leads to corrosion, which is a major barrier to the use of chloride salts in various applications. Although pre-purification methods exist, continuous purification during plant operation is necessary. Therefore, this study aims to assess the scalability of continuous electrochemical purification using a Mg anode and W cathode.
JOURNAL OF THE ELECTROCHEMICAL SOCIETY
(2023)
Article
Electrochemistry
Xuehua Wang, Liwen Zhang, Xiaoli Xi, Zuoren Nie
Summary: In this study, tungsten was extracted from LiCl-KCl-Li2WO4 molten salt, resulting in reduced electrolysis temperature and energy consumption, improved dissolution efficiency and current efficiency. Furthermore, the oxidation-reduction process of tungsten ion in tungstate was investigated, and spherical tungsten powder clusters were successfully prepared.
JOURNAL OF THE ELECTROCHEMICAL SOCIETY
(2022)
Article
Chemistry, Multidisciplinary
Xiyang Cai, Zulipiya Shadike, Xinyin Cai, Xingdian Li, Liuxuan Luo, Lu An, Jiewei Yin, Guanghua Wei, Fan Yang, Shuiyun Shen, Junliang Zhang
Summary: This study proposes a feasible membrane electrode assembly (MEA) configuration as a promising solution to overcome the limitations of the lithium-mediated process (LiNR) in ammonia synthesis via the electrochemical nitrogen reduction reaction (NRR). The MEA configuration offers the advantages of efficient gas transfer, reduced solvent consumption, and compact structure for LiNR.
ENERGY & ENVIRONMENTAL SCIENCE
(2023)
Article
Green & Sustainable Science & Technology
Min Soo Kim, Jungchul Kim, So Yeon Kim, Chan Ho Chu, Kyu Heon Rho, Minsung Kim, Dong Kyu Kim
Summary: In this study, the parameters and operating characteristics of an electrochemical compressor were investigated. The results showed that current density and operating temperature have significant effects on the performance of the electrochemical hydrogen compressor, while inlet pressure has a minimal impact on the operating voltage.
Article
Electrochemistry
Shinji Kondou, Yoshifumi Watanabe, Kaoru Dokko, Masayoshi Watanabe, Kazuhide Ueno
Summary: This study demonstrates a significant improvement in the cycle performance of a Li4Ti5O12 electrode by using a Li-Ca binary salt hydrate electrolyte and an optimized electrochemical pretreatment process to form a thick SEI layer. This approach offers a promising route for the practical use of low-potential anode materials in aqueous rechargeable lithium-ion batteries.
Review
Chemistry, Multidisciplinary
Yudong Xue, Yunting Wang, Zhenhua Pan, Kazuhiro Sayama
Summary: This paper reviews recent developments in EC/PEC H2O2 production through water oxidation, including fundamental aspects, benchmark activity evaluation, material/catalyst selection, and strategies for increasing selectivity, efficiency, and accumulation. The challenges and outlook for water oxidation in H2O2 production are also discussed, with a focus on device-level development, accumulation and stability, and industrial applications. The review aims to inspire further research in improving EC/PEC H2O2 production.
ANGEWANDTE CHEMIE-INTERNATIONAL EDITION
(2021)
Article
Materials Science, Ceramics
Jiajun Hu, Jing Qin, Ziyi Zhou, Zhongqi Shi, Kang Peng, Kai Gao, Hongyan Xia
Summary: Due to its high chemical stability, thermal stability and appropriate band gap, boron phosphide (BP) shows great potential in the field of photoelectrochemistry. However, the current methods for synthesizing BP have issues such as long synthesis period, low yield and purity, which hinders its application. Therefore, finding a highly efficient and low-cost methodology is essential. In this study, a controllable molten salt method was used to synthesize BP, and the NaCl/KCl/LiCl eutectic molten salt was found to be the most effective in accelerating the formation and growth of BP at lower temperature. The maximum yield of BP in NaCl/KCl/LiCl salt could reach 71%. Additionally, the process and mechanism of BP formation were studied, and the synthesized BP showed good photocurrent response in photoelectrochemistry testing.
CERAMICS INTERNATIONAL
(2023)
Article
Chemistry, Physical
Shi He, Yufeng Chen, Mengdi Wang, Hanggai Nuomin, Peter Novello, Xueqian Li, Siyuan Zhu, Jie Liu
Summary: Ammonia is a promising hydrogen mediator that reduces the cost of hydrogen transportation, but improvements are needed for extracting hydrogen. Ammonia electrolysis is a convenient method for low-cost hydrogen production. Nickel-cobalt nitride nanosheets show high electrocatalytic activity for the ammonia oxidation reaction in non-aqueous solutions.
Article
Engineering, Chemical
Wei Han, Xinyao Feng, Yijie Wang, Rugeng Liu, Meng Zhang, Mei Li
Summary: In this study, the electrochemical behavior of UO22+ and the nucleation mechanism of UO2 were investigated for the recovery of UO2 from LiCl-KCl-UO2F2 molten salt. The results showed that UO2 was formed through a two-step reduction process involving one electron transfer. The disproportionation reaction of UO2+ was also examined, and its exchange current densities were determined at different temperatures, indicating an activation energy of 32.31 kJ mol-1. The nucleation mechanism of UO2 was followed by chronoamperometry, and the effect of applied potential on the crystal size of UO2 was observed. Pulse electrolysis was employed to avoid dendrite formation and produce UO2 with a regular octahedral microstructure.
SEPARATION AND PURIFICATION TECHNOLOGY
(2023)
Article
Thermodynamics
Jamileh Fouladi, Ahmed AlNouss, Yusuf Bicer, Tareq Al-Ansari
Summary: This study proposes a solar energy-based system that integrates seawater desalination, power, ammonia/urea, and syngas production. By studying the energy-water-food nexus performance, the researchers find that the system's performance depends on solar capacity and captures the trade-offs among different resources.
CASE STUDIES IN THERMAL ENGINEERING
(2022)
Article
Energy & Fuels
Ahad Al-Enazi, Yusuf Bicer, Eric C. Okonkwo, Tareq Al-Ansari
Summary: This study investigates the feasibility of reducing the environmental impact of shipping activities through greater uptake of cleaner fuel alternatives, using Qatar as a case study. The results demonstrate that cleaner fuels can reduce emissions in the maritime industry, with liquefied natural gas being the most favorable fuel for sale and ammonia being the most favorable for fueling ships.
Article
Acoustics
Muhammad Usman Sajid, Yusuf Bicer
Summary: The impact of ultrasonication time and surfactants on the optical characteristics and stability of CuO/water, CNTs/water, and Fe3O4/water nanofluids was evaluated. Surfactants were found to significantly affect the stability of nanofluids over ultrasonication time. The optical characteristics of nanofluids were influenced by the concentration of nanoparticles, ultrasonication time, temperature, and surfactants.
ULTRASONICS SONOCHEMISTRY
(2022)
Article
Chemistry, Physical
Dawood Hjeij, Yusuf Bicer, Muammer Koc
Summary: A hybrid renewable-based integrated energy system for power-to-X conversion is designed and analyzed, producing hydrogen, electricity, heat, ammonia, urea, and synthetic natural gas (SNG). The system utilizes solid oxide electrolyzers and fuel cells to produce and store hydrogen for power generation from solar energy. Ammonia, urea, and synthetic natural gas are produced as energy carriers or valuable chemical products. The system's energy efficiency is 56%, while the exergy efficiency is 14%, with the highest exergy destruction occurring in the Rankine cycle. The mass flow rates of the produced chemicals are 0.064, 0.088, and 0.048 kg/s for ammonia, urea, and SNG, respectively.
INTERNATIONAL JOURNAL OF HYDROGEN ENERGY
(2023)
Article
Green & Sustainable Science & Technology
Aliya Banu, Adnan Midilli, Yusuf Bicer
Summary: This study evaluates two proposed systems based on solar methane cracking for low-carbon fuel production. The systems convert turquoise hydrogen into a suitable form for transportation and utilize the carbon solid by-product. The environmental effect factor and exergetic sustainability index were determined for each system, with solar methane cracking having an environmental effect factor of 0.08 and an exergetic sustainability index of 12.27.
JOURNAL OF CLEANER PRODUCTION
(2023)
Article
Thermodynamics
Muhammad Usman Sajid, M. Ziad Saghir, Ibrahim Dincer, Yusuf Bicer
Summary: In this study, CuS-ZnO/water hybrid nanofluids were synthesized and tested for their optical and thermal properties. It was found that the nanofluids can effectively reduce the inside temperature of a greenhouse unit and enhance the crop growth factor. The payback period of the nanofluid system was calculated to be 0.42 years.
JOURNAL OF THERMAL ANALYSIS AND CALORIMETRY
(2023)
Article
Green & Sustainable Science & Technology
Ragad F. Alshebli, Yusuf Bicer
Summary: This study aims to perform a thermodynamic analysis of a multigeneration system that recovers hydroponic farming nutrients from seawater using renewable energy resources. A parametric study investigates the impacts of various factors on the system. The proposed system utilizes direct contact membrane distillation crystallization for seawater desalination and ions recovery, as well as dual evaporator vapor compression refrigeration for greenhouse ventilation.
Article
Energy & Fuels
Fariha Niaz, Yusuf Bicer
Summary: In hot-arid regions like Qatar, off-grid shelters are proposed to provide pedestrians with space cooling and freshwater. The off-grid system includes bifacial photovoltaic and solar thermal collector for energy generation, with battery and thermal storage units. The system can produce up to 6.1 kW power on the rooftop and reduces cooling load. Different cooling systems are used for high and low ambient temperatures, and an electrodialysis system is integrated to generate freshwater from seawater.
ENERGY SCIENCE & ENGINEERING
(2023)
Article
Thermodynamics
Muhammad Usman Sajid, Yusuf Bicer
Summary: The plants in agricultural greenhouses only use visible spectrum for photosynthesis, and the remaining solar spectrum causes temperature rise in the greenhouse, which affects plant growth and increases cooling load in hot arid climates. Spectrum selective nanofluids can solve this problem by transmitting visible spectrum and absorbing near-infrared radiations. The experimental study showed that optically tuned CuS-MgO/water nanofluid reduced the inside temperature of greenhouse unit, and the photothermal conversion efficiency was 70.5%.
APPLIED THERMAL ENGINEERING
(2023)
Article
Energy & Fuels
Mahsa Hajialibabaei, Mohamad Ziad Saghir, Yusuf Bicer
Summary: This study aims to enhance the thermal performance of a straight-channel heat sink while decreasing the pressure drop by reducing the height of the inside channels and increasing the open space above them. Both experimental investigation and numerical analysis were conducted to study the thermal efficiency of heat sinks with varying heights. The results indicate that lowering the channel height raises the highest temperature of the heat sink, while changing the height to 10 mm reduces the temperature.
Article
Energy & Fuels
Mohammed Al-Breiki, Yusuf Bicer
Summary: For Qatar, deploying an ammonia economy can help achieve its goals of diversifying the economy, reducing carbon emissions, and decreasing dependence on hydrocarbon revenues. This study provides a roadmap and strategies for the development of an ammonia economy in Qatar, highlighting the potential environmental impact of different ammonia production methods. The SWOT analysis helps stakeholders and decision-makers understand the current state of the NH3 economy in Qatar and the challenges and opportunities it presents.
ENERGY SOURCES PART B-ECONOMICS PLANNING AND POLICY
(2023)
Review
Chemistry, Multidisciplinary
Osama Massarweh, Maha Al-khuzaei, Manal Al-Shafi, Yusuf Bicer, Ahmad S. Abushaikha
Summary: This paper reviews recent literature on blue H2, a potential low-carbon, short-term solution during the H2 transition period. The paper focuses on the production processes for blue H2, a comparison between blue H2 and natural gas, and the importance of CO2 sequestration in depleted natural gas reservoirs. The successful production of blue H2 requires the appropriate implementation of CCS, while the transportation of liquefied and compressed blue H2 comes with higher energy, economic, and environmental costs.
JOURNAL OF CO2 UTILIZATION
(2023)
Review
Multidisciplinary Sciences
Fadi Al-Noaimi, Tareq Al-Ansari, Yusuf Bicer
Summary: The paper aims to present a comprehensive perspective on the development of a long-term low-emission strategy for Qatar, in line with the Paris Agreement. By analyzing national strategies and mitigation measures from other countries and synthesizing them with Qatar's unique context, the paper identifies key considerations for policymakers in developing a low-emission vision, with a particular focus on the energy sector. The study's findings have significant policy implications for Qatar and other countries facing similar challenges in transitioning to a sustainable future.
Article
Thermodynamics
Nurettin Sezer, Shoukat Alim Khan, Yusuf Bicer, Muammer Koc
Summary: The efficiency and capacity of nucleate boiling can be enhanced by the bubble-induced assembly of nano-particles, which are dispersed in a boiling liquid. This study presents the nucleate boiling performance of graphene/carbon black hybrid films formed through the bubble-induced self-assembly of suspended particles. The heat transfer coefficient and critical heat flux were significantly improved by surface roughening, increased effective surface area, decent interface contact within the assembly structure, improved capillarity, and lateral heat conduction.
INTERNATIONAL JOURNAL OF THERMAL SCIENCES
(2023)
Review
Chemistry, Multidisciplinary
Yasser Abdullatif, Ahmed Sodiq, Namra Mir, Yusuf Bicer, Tareq Al-Ansari, Muftah H. El-Naas, Abdulkarem I. Amhamed
Summary: The increasing concentration of carbon dioxide in the atmosphere has led to a search for urgent solutions to address global climate change challenges. Direct air capture (DAC) technology has the potential to remove CO2 from the atmosphere, but it still faces some drawbacks that need to be addressed. This review focuses on emerging trends in DAC and highlights the high energy requirement as the main barrier to its commercialization.
