Article
Green & Sustainable Science & Technology
V. K. Thanda, Th Fend, D. Laaber, A. Lidor, H. von Storch, J. P. Saeck, J. Hertel, J. Lampe, S. Menz, G. Piesche, S. Berger, S. Lorentzou, M. Syrigou, Th Denk, A. Gonzales-Pardo, A. Vidal, M. Roeb, Ch Sattler
Summary: This article describes the results of an experimental campaign on solar thermochemical water splitting via a two-stage redox cycle. By using a large-scale solar simulator, a combined receiver/reactor was able to produce hydrogen in a medium scale structured reactor.
Article
Green & Sustainable Science & Technology
Md. Sanwar Hossain, Abdullah G. Alharbi, Khondoker Ziaul Islam, Md. Rabiul Islam
Summary: This study examines the technical and economic feasibility of hybrid solar PV/hydrogen/fuel cell-powered base stations for green mobile communication, finding that adequate energy storage is essential for improving system reliability and service quality. Extensive simulations and evaluations utilizing HOMER optimization tool were conducted to determine the impacts of different system parameters on energy production, costs, and carbon footprints.
Article
Energy & Fuels
Asim Riaz, Christopher Bodger, Jingjing Chen, Adrian Lowe, Takuya Tsuzuki, Wojciech Lipinski
Summary: This study investigates the development and performance of ceria-vanadia mixed-phase reticulated porous ceramics for solar production of synthesis gas. The material shows high chemical and structural stability, making it promising for application at a solar reactor level. The average production rates for both methane partial oxidation and carbon dioxide splitting reactions demonstrate the potential of ceria-vanadia mixed-phase reticulated porous ceramics.
Article
Thermodynamics
Bo Wang, Xian Li, Xuancan Zhu, Yuesen Wang, Tian Tian, Yanjun Dai, Chi-Hwa Wang
Summary: This study proposes a novel epitrochoidal rotary reactor for efficient solar-driven water-splitting. The focus is on the geometry optimization to achieve optimal thermodynamic solar-to-fuel energy conversion efficiency. Mathematical descriptions of kinematic synthesis of the conjugate rotor and stator profiles are derived. A thermodynamic model considering heat recovery is developed to evaluate the reactor's performance. The cam-to-rotor size ratio and the number of rotor sides are found to significantly impact the solar-to-fuel energy conversion efficiency.
Article
Energy & Fuels
Utkarsh Shikhar, Kas Hemmes, Theo Woudstra
Summary: Fuel cells convert the chemical energy of fuels into electricity while producing heat. High temperature fuel cells can be used for flexible coproduction of hydrogen and power in systems, and recent studies have used software to determine the technical feasibility.
FRONTIERS IN ENERGY RESEARCH
(2021)
Article
Energy & Fuels
Yan Cao, Ibrahim B. Mansir, Abir Mouldi, Sameer Alsharif, Ayman A. Aly, Fahd Jarad, M. F. M. Batcha, B. Bouallegue
Summary: The use of solar energy is crucial for meeting future energy demands. However, the low exergetic performance of solar power-to-electricity processes is a major drawback. In this study, the simultaneous use of thermal energy storage and compressed air energy storage technologies in a high-temperature solar coproduction system is proposed and investigated. The system's operation is divided into three periods, and various recovery techniques are considered. The framework is optimized using an advanced evolutionary algorithm, and the results show improved exergetic efficiency and reduced system costs.
JOURNAL OF ENERGY STORAGE
(2022)
Article
Chemistry, Physical
Leonard E. Klebanoff, Sean A. M. Caughlan, Robert T. Madsen, Cody J. Conard, Timothy S. Leach, T. Bruce Appelgate
Summary: The study compared three potential variants for an R/V Sproul replacement vessel, finding that the Hydrogen Hybrid SRV offers the longest zero-emission runtime, highest energy efficiency, and lowest emissions at a higher cost than the other two variants.
INTERNATIONAL JOURNAL OF HYDROGEN ENERGY
(2021)
Article
Chemistry, Physical
Oladapo Christopher Esan, Xingyi Shi, Zhefei Pan, Yun Liu, Xiaoyu Huo, Liang An, T. S. Zhao
Summary: This study investigates the performance and operation of a novel H2O2-based fuel cell. The e-fuel/H2O2 fuel cell shows higher power density and current density than using oxygen, making it a promising power source in airtight environments.
JOURNAL OF POWER SOURCES
(2022)
Article
Chemistry, Physical
Lorenzo Balestra, Ingrid Schjolberg
Summary: This paper presents three approaches for sizing and controlling a maritime hybrid power-plant with proton exchange membrane fuel cells and batteries. The study focuses on energy management strategy and component sizing for three different power-plant configurations. It is observed that trade-offs exist in hybrid power-plant optimization, and optimization should prioritize factors considered most important for day-to-day operations by the ship owner.
INTERNATIONAL JOURNAL OF HYDROGEN ENERGY
(2021)
Article
Thermodynamics
Liya Zhu, Weixu Yang, Heng Pan, Zongping Shao, Youjun Lu, Zhi-Min Dang
Summary: H2O splitting via redox cycles of metal oxides is a promising method for solar hydrogen production. The introduction of spectral splitting can reduce exergy degradation and utilize the full solar spectrum for improved efficiency. A thermodynamic model coupling the solar spectrum with a two-step thermo-electrolytic cycle was established, and the cycling performance was examined. Solar-to-H2 efficiency can be significantly improved with spectral splitting, and lower reduction temperatures can be achieved. Isothermal cycles have higher efficiency advantages but lower conversion rates and higher oxygen carrier demands.
ENERGY CONVERSION AND MANAGEMENT
(2023)
Article
Chemistry, Physical
Lorenzo Balestra, Ingrid Schjolberg
Summary: This study introduces a simulation tool for marine hybrid power-plants that can analyze different energy management strategies by simulating power-plants of various sizes and configurations; it aims to replicate the realistic behavior of components and evaluate if selected hardware can deliver the power required by the energy management system.
INTERNATIONAL JOURNAL OF HYDROGEN ENERGY
(2021)
Article
Chemistry, Physical
Van Ga Bui, Thi Minh Tu Bui, Van Giao Nguyen, Van Nam Tran, Le Bich Tram Truong, Le Hoang Phu Pham
Summary: This study presents the research results of a twining injector system for supplying a flexible syngas-biogas-hydrogen blend to engines in a hybrid solar-biomass renewable energy system. The effects of nozzle diameter, injection pressure, and nozzle location were investigated. Simulation results showed that a twining injector system with two injectors having a nozzle diameter of 5 mm located near the inlet port and an injection pressure of 1 bar is suitable for the Honda GX200 engine. The injector system achieved stable injection durations for different fuel blends.
INTERNATIONAL JOURNAL OF HYDROGEN ENERGY
(2023)
Article
Energy & Fuels
Mahsa Rajabi, Mehdi Mehrpooya, Asal Sami
Summary: Environmental and atmospheric pollution have become significant global issues in the past decades, with energy supply sectors using non-renewable resources being major contributors. Therefore, it is urgent to switch to power generation systems using renewable resources with minimal environmental pollution. This study presents an integrated multi-generation system utilizing clean and renewable fuels. Extensive performance analysis is conducted to determine optimal values and the system's efficiency rates are reported.
JOURNAL OF ENERGY STORAGE
(2022)
Review
Chemistry, Physical
Songying Qu, Hao Wu, Yun Hau Ng
Summary: Hydrogen peroxide is a crucial chemical attracting attention for energy and environmental applications. The environmentally friendly solar-driven production of hydrogen peroxide, which only requires water, oxygen, and light energy, has gained the most attention. The rational design of functional photo-responsive catalysts promotes hydrogen peroxide production in photo(electro)catalytic approaches. This review systematically summarizes strategies for these catalysts and discusses prevailing hypotheses, state-of-the-art catalysts, critical challenges, and perspectives to enhance comprehension and promote interest in sustainable hydrogen peroxide production.
ADVANCED ENERGY MATERIALS
(2023)
Article
Energy & Fuels
Zhanlei Wang, Xiaoqiang Zhang, Ali Rezazadeh
Summary: The excessive consumption of fossil fuels has depleted reserves and caused environmental crises, prompting a shift towards clean energy sources. However, the intermittent nature of these sources presents challenges in meeting long-term energy demand. Researchers propose the use of hybrid energy systems, with a novel energy cycle incorporating wind turbines, solar PV fields, alkaline fuel cells, Stirling engines, and electrolyzers. The introduced cycle aims to generate electricity and hydrogen fuel, demonstrating an output of 10.5 kW of electricity and an electrical efficiency of 56.9%.
Article
Chemistry, Applied
Yuan Tian, Phillip R. Westmoreland, Fanxing Li
Summary: The reduction kinetics and stability of Na2MoO4-promoted CaMn0.9Ti0.1O3 were investigated for its application in CL-ODH of ethane, showing promising results with excellent selectivity towards hydrogen combustion. The addition of Na2MoO4 effectively suppressed C2H4 combustion relative to H2 oxidation, making it a potential alternative for ethylene production. The core-shell structure of CaMn0.9Ti0.1O3@Na2MoO4 was well-maintained with deep reduction, demonstrating excellent performance after 50 redox cycles.
Article
Chemistry, Applied
Sherafghan Iftikhar, William Martin, Yunfei Gao, Xinbin Yu, Iwei Wang, Zili Wu, Fanxing Li
Summary: The study investigates LaFe1_xNixO3_delta redox catalysts for CO2 utilization and production of syngas. Different compositions of LaFe1_xNixO3_delta were prepared and tested, showing favorable reactive performance. The flexibility of the catalysts to produce syngas or hydrogen with tunable compositions depends on the iron/nickel ratio. The stability and performance of the redox catalysts were proven over multiple cycles.
Article
Nanoscience & Nanotechnology
H. Alex Hsain, Younghwan Lee, Suzanne Lancaster, Patrick D. Lomenzo, Bohan Xu, Thomas Mikolajick, Uwe Schroeder, Gregory N. Parsons, Jacob L. Jones
Summary: By inserting a 1 nm Al2O3 layer at the HZO/TiN interface, a protective passivating layer is introduced, resulting in improved remanent polarization and endurance of TiN/HZO/TiN capacitors.
Article
Chemistry, Physical
Jian Dou, Joey Funderburg, Kunran Yang, Junchen Liu, Dennis Chacko, Kui Zhang, Adam P. Harvey, Vasudev P. Haribal, S. James. Zhou, Fanxing Li
Summary: CO2-assisted oxidative dehydrogenation of propane (CO2-ODH) is a promising method for propylene production and CO2 utilization. This study focuses on designing CexZr1-xO(2)-mixed oxide-supported CrOx catalysts for CO2-ODH with enhanced selectivity and stability. The addition of Ce to the ZrO2 support greatly improves catalyst stability by enhancing coke resistance.
Article
Nanoscience & Nanotechnology
Siyuan Zhu, Yufeng Chen, Vasishta Somayaji, Peter Novello, Dennis Chacko, Fanxing Li, Jie Liu
Summary: High entropy oxide (HEO) is a promising catalyst support for various chemical reactions due to its tunable composition-function properties. In this study, highly dispersed rhodium nanoparticles were successfully synthesized on HEO using a one-step glycine-nitrate-based combustion method. The resulting catalyst exhibited significantly higher selectivity and activity in CO2 hydrogenation compared to rhodium nanoparticle-based catalysts. The high CO selectivity was attributed to the presence of copper and zinc in the HEO support, which weakened the *CO binding strength and formed a strong metal-support interaction.
ACS APPLIED MATERIALS & INTERFACES
(2023)
Article
Materials Science, Coatings & Films
Jan-Willem J. Clerix, Golnaz Dianat, Annelies Delabie, Gregory N. Parsons
Summary: This study investigates the adsorption of DMATMS on SiO2 and the subsequent reactions during TiCl4/H2O ALD. It is found that DMATMS selectively reacts with -OH groups on SiO2 and inhibits the reaction with TiCl4. Additionally, DMATMS can also react with residual -OH groups and reduce nucleation. The effectiveness of DMATMS passivation on SiO2 and H-terminated Si is quantified using Rutherford backscattering spectrometry.
JOURNAL OF VACUUM SCIENCE & TECHNOLOGY A
(2023)
Article
Materials Science, Coatings & Films
Holger Saare, Wenyi Xie, Gregory N. Parsons
Summary: Recent advances in the semiconductor industry have led to the demand for conformal deposition and etching processes in three-dimensional devices. This study investigates thermal atomic layer etching (ALE) of TiO2 and ZrO2 using different co-reactants. The results show that the choice of co-reactant affects the saturation and etch rates at different temperatures. The study expands the understanding of co-etchants' role in thermal ALE and increases the range of reactants for vapor etching of metal oxides.
JOURNAL OF VACUUM SCIENCE & TECHNOLOGY A
(2023)
Article
Chemistry, Physical
Runxia Cai, Hilal Bektas, Xijun Wang, Kyle McClintock, Lauren Teague, Kunran Yang, Fanxing Li
Summary: This paper reports a high-throughput combinatorial approach for accelerated development and optimization of perovskite oxides for thermochemical energy storage. Promising candidates are selected based on thermodynamic screening criteria and DFT simulation results. The experimental results confirm the effectiveness of the high-throughput approach in determining key properties of perovskite oxides.
ADVANCED ENERGY MATERIALS
(2023)
Article
Chemistry, Multidisciplinary
Rachel A. A. Nye, Kaat Van Dongen, Jean-Francois de Marneffe, Gregory N. N. Parsons, Annelies Delabie
Summary: Area-selective deposition (ASD) has potential for sub-10 nm manufacturing, but scaling to ultrasmall dimensions and understanding feature-dependent nonuniformity and selectivity loss remains challenging. This work addresses these challenges by quantifying uniformity and selectivity for passivation/deposition/etch supercycles in 45 nm half-pitch TiN/SiO2 line/space patterns. Three selective processes were used: DMA-TMS inhibition, TiO2 ALD, and HBr/BCl3 plasma etch. By employing three supercycles, this work achieves 8 nm of TiO2 with high uniformity and selectivity, improving on previous reports in similar nanoscale patterns. Integrated consideration of uniformity and selectivity will aid the design of selective deposition processes for nanoscale electronic devices.
ADVANCED MATERIALS INTERFACES
(2023)
Article
Materials Science, Multidisciplinary
Vahid Rahmanian, Tahira Pirzada, Eduardo Barbieri, Sherafghan Iftikhar, Fanxing Li, Saad A. Khan
Summary: We have developed a robust method for creating polyvinylpyrrolidone (PVP)-titania (TiO2) nanofibrous aerogels (NFA) with multifunctional and triggered performances. These 3D self-supported aerogels have low density and high porosity, and are fabricated through solid templating of sol-gel electrospun PVP-TiO2 hybrid nanofibers. The aerogels exhibit photocatalytic activity, antibacterial properties, ability to sorb volatile organic compounds (VOCs) and oils, as well as excellent thermal insulation and mechanical flexibility.
APPLIED MATERIALS TODAY
(2023)
Article
Engineering, Environmental
Runxia Cai, Leo Brody, Yuan Tian, Luke Neal, Arnab Bose, Fanxing Li
Summary: Chemical looping oxidative dehydrogenation (CL-ODH) has the potential to replace steam cracking for ethylene production. Accurate reactor modeling is crucial for scaling up and optimizing this new technology. A one-dimensional packed bed model was used to simulate the CL-ODH of ethane to ethylene, and the results were validated by experiments. Overall, this study provides insights for efficient and optimized operation of CL-ODH reactors.
CHEMICAL ENGINEERING JOURNAL
(2023)
Article
Chemistry, Applied
Yuan Tian, Zoe Benedict, Fanxing Li, Yingchao Yang, Debtanu Maiti, Yixiao Wang, Rebecca Fushimi
Summary: In the context of energy and environment, finding energy efficient routes for chemical manufacturing and reducing greenhouse gas emissions is crucial. This study presents a pathway for continuous syngas production through chemical looping conversion of CH4 and CO2. The chemical looping approach mitigates catalyst deactivation and improves energy efficiency. The study explores the structure-function relationships of catalysts and demonstrates the activation of CH4 over Ni-promoted samples. The findings highlight the potential of chemical looping reactors for efficient syngas production from waste greenhouse gases.
TOPICS IN CATALYSIS
(2023)
Article
Chemistry, Physical
Scott McGuigan, Stephen J. Tereniak, Carrie L. Donley, Avery Smith, Sungho Jeon, Fengyi Zhao, Renato N. Sampaio, Magnus Pauly, Landon Keller, Leonard Collins, Gregory N. Parsons, Tianquan Lian, Eric A. Stach, Paul A. Maggard
Summary: This study presents a functional hybrid photocatalyst system using a crystalline carbon nitride semiconductor, poly(triazine imide) lithium chloride (PTI-LiCl), and a CoCl2(qpy-Ph-COOH) catalyst for CO2 reduction. The optimized catalyst loading achieved high rates and selectivity for CO production, which were further improved by increasing the incident irradiance. Higher surface loadings were found to extend the lifetime of the molecular catalysts.
ACS APPLIED ENERGY MATERIALS
(2023)
Article
Chemistry, Multidisciplinary
Xiaojiao Yuan, Kunran Yang, Chloe Grazon, Cong Wang, Lorenzo Vallan, Jean-David Isasa, Pedro M. Resende, Fanxing Li, Cyril Brochon, Hynd Remita, Georges Hadziioannou, Eric Cloutet, Jian Li
Summary: The relationship between the aggregation of 4,7-bis(thiophen-2-yl) benzothiadiazole (TBT)-based conjugated trimers and their photocatalytic activity was systematically investigated by methyl side-chain engineering. TBT-3 with the smallest size of aggregates and highest crystallinity exhibit the highest photocatalytic H2 evolution activity, which is due to the shorter charge carrier transport distance and solid long-range order.
ANGEWANDTE CHEMIE-INTERNATIONAL EDITION
(2023)
Article
Chemistry, Physical
Vahid Rahmanian, Muhammed Ziauddin Ahmad Ebrahim, Seyedamin Razavi, Mai Abdelmigeed, Eduardo Barbieri, Stefano Menegatti, Gregory N. Parsons, Fanxing Li, Tahira Pirzada, Saad A. Khan
Summary: This study presents a novel method for synthesizing metal-organic frameworks (MOFs) on 3D-structured nanofibrous aerogels (NFAs). The resulting hybrid aerogels exhibit promising applications in CO2 adsorption, heavy metal removal, and antibacterial properties.
JOURNAL OF MATERIALS CHEMISTRY A
(2023)
Article
Chemistry, Multidisciplinary
Kecheng Long, Shaozhen Huang, Han Wang, Anbang Wang, Yuejiao Chen, Zhijian Liu, Yu Zhang, Zhibin Wu, Weikun Wang, Libao Chen
Summary: This study proposes a low-cost Li foil surface-reconstruction strategy using a mechanochemistry reaction between fumed silica and Li to achieve dendrite-free Li metal anode. The reconstructed surface enhances the electrode dynamics and constructs an anionphilic interface, leading to significantly improved low-temperature and cycling performance of Li metal batteries while maintaining high energy density and stable cycle performance.
ENERGY & ENVIRONMENTAL SCIENCE
(2024)
Article
Chemistry, Multidisciplinary
Changchun Ye, Zhenghui Pan, Qinghua Zhang, Fang Yin, Yanan Wang, Yifei Li, Guangxu Chen, Jia Li, Yongcai Qiu, Geoffrey I. N. Waterhouse, Lin Gu, Zhang Lin, Lin Guo
Summary: A facile synthesis route for heterostructured metal oxides via quenching-induced structural transformation was developed. Multiple quenching triggered the transformation from NiMoO4 to NiFe2O4, creating a novel heterostructure, and the pre-quenching generated disordered defect structure can promote subsequent quenching regulation.
ENERGY & ENVIRONMENTAL SCIENCE
(2024)
Article
Chemistry, Multidisciplinary
Yang Liu, Xufei An, Ke Yang, Jiabin Ma, Jinshuo Mi, Danfeng Zhang, Xing Cheng, Yuhang Li, Yuetao Ma, Ming Liu, Feiyu Kang, Yan-Bing He
Summary: The lack of understanding of ion transport in the cathode of PVDF-based solid-state lithium metal batteries limits their performance. The use of carbon-coated Li1.4Al0.4Ti1.6(PO4)3 nanowires as a cathode filler improves the diffusion of ions in the thick cathode, leading to enhanced battery performance and stability.
ENERGY & ENVIRONMENTAL SCIENCE
(2024)
Article
Chemistry, Multidisciplinary
Zixing Wang, Kang Luo, Jian-Fang Wu, Peng Gao, Kexuan Wang, Shi Chen, Jian Tu, Xiulin Fan, Jilei Liu
Summary: This study improves the performance limitations of potassium-ion batteries at extreme temperatures by regulating the ion-solvent-coordinated structure, leading to enhanced cycling performance and capacity retention.
ENERGY & ENVIRONMENTAL SCIENCE
(2024)
Article
Chemistry, Multidisciplinary
Shan Jiang, Ruyue Wang, Minghua Li, Runnan Yu, Fuzhi Wang, Zhan'ao Tan
Summary: This study developed a synergistic electrical and light management strategy to maximize the voltage output in monolithic perovskite/organic tandem solar cells. By optimizing the interface contact and regulating the donor/acceptor ratio, the fabricated cells achieved remarkable power conversion efficiency and high open-circuit voltage.
ENERGY & ENVIRONMENTAL SCIENCE
(2024)
Article
Chemistry, Multidisciplinary
Gwanho Kim, Jae Won Lee, Kaiying Zhao, Taebin Kim, Woojoong Kim, Jin Woo Oh, Kyuho Lee, Jihye Jang, Guangtao Zan, Jong Woong Park, Seokyeong Lee, Yeonji Kim, Wei Jiang, Shengyou Li, Cheolmin Park
Summary: In this study, a new type of complementary energy harvester that can simultaneously generate moisture-induced and triboelectric power is introduced. This device exhibits high resilience, high energy output, and potential applications in emergency guidance systems.
ENERGY & ENVIRONMENTAL SCIENCE
(2024)
