Energy Storage and Conversion

Description

In the era of new technology, research and application in the field of energy demonstrate strong potential for exploration and development. These directly impact the sustainable use of resources and the advancement of science and technology. The journal of Energy Storage and Conversion (eISSN: 3029-2778) focuses on the production, storage, transformation and application value of energy. We are very receptive to novel discoveries in energy and resource sectors, and are committed to exploring their sustainable exploitation and valuble utilization. Please refer to the Focus and Scopes of the journal for more details.

Latest Articles

Open Access

Article

Article ID: 2074

Effective Nano-manufacturing of T-Nb2O5 for supercapacitor applications
by Surjit Sahoo, Anand Kumar Gandham, Vijay Kumar Pal

Energy Storage and Conversion, Vol.2, No.4, 2024; 663 Views, 612 PDF Downloads, 3 Supp.file Downloads

DOI: https://doi.org/10.59400/esc2074

Characterized by unique physical and chemical properties, metal oxide materials have garnered significant attention for research and development in energy storage device applications. In the current work, we present a simple and low-cost synthesis protocol for orthorhombic-phase niobium oxide (T-Nb 2 O 5 ) electrodes, aimed at supercapacitor applications. The as-prepared T-Nb 2 O 5 was characterized utilizing field emission scanning electron microscopy, X-ray diffraction, and energy-dispersive X-ray spectroscopy, confirming the formation of orthorhombic-phase T-Nb 2 O 5 nanoparticles. Detailed electrochemical analyses were conducted on T-Nb 2 O 5 , utilizing 1 M LiOH as the electrolyte. The unique nanoparticle architecture of T-Nb 2 O 5 offers abundant electro-active sites and enhances reaction kinetics, leading to high specific capacitance. Notably, the T-Nb 2 O 5 electrode achieved a gravimetric capacitance of approximately 23 F g −1 at the lowest sweep rate (5 mV s −1 ). These findings highlight the potential of T-Nb 2 O 5 as an effective electroactive material for supercapacitors.

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Open Access

Article

Article ID: 1546

Holistic approach to energy storage management aspects in sustainable community
by Grzegorz Augustyn, Jerzy Mikulik

Energy Storage and Conversion, Vol.2, No.4, 2024; 836 Views, 138 PDF Downloads

DOI: https://doi.org/10.59400/esc1546

Energy management is nowadays key topic for synchronic operation of renewable sources of energy and their recipients. Contemporary national electrical power grid systems more often cannot supply efficiently electrical energy and cannot receive energy produced by renewable sources. The common approach to the problem is to meet energy demands supplying from electrical grid and renewable power sources with energy storage feature. From the other side, off-grid solutions based on the co-generation biogas plants are commonly aimed on small local communities as power supply supported by renewable energy systems like photovoltaic (PV) systems, wind power plants or small water plants with energy storage to support self-consumption of electrical energy. Integration of intermittent renewable power sources, such as solar, wind and biogas plant, increases the difficulty of managing the electricity grid and maintaining the balance of electricity supply and demand, especially in small communities. The holistic approach to the energy storage management takes all above aspects and presents the concept where municipal waste is used to produce energy in biogas plant supported by PV systems and community shared electrical energy storage to provide uninterrupted power supply. The study also presents how energy storage management can be used in whole process to adjust the size and manage energy supply and demand within the community based on energy self-consumption optimization. It is also shown that by utilizing municipal waste produced by the community we can meet the goals of circular economy and sustainable development of local communities as the waste will be used in full without necessity of recycling it outside the community. The novelty of the study is the foundation for energy storage capacity and renewable energy sources size evaluation to balance energy management process without the need of on-grid power supply and with use only municipal biodegradable waste for biogas fuel supply and solar energy for energy production.

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Open Access

Article

Article ID: 1815

Effect of graphite powder on thermal behavior of phase change material
by Makoto Shibahara, Yuuhi Hatta, Qiusheng Liu, Sutopo Purwono Fitri

Energy Storage and Conversion, Vol.2, No.4, 2024; 1656 Views, 387 PDF Downloads

DOI: https://doi.org/10.59400/esc1815

The effect of graphite powder on the thermal behavior of phase change material (PCM) was investigated experimentally. It is well known that the graphite is contributed to enhance the thermal response. However, the effect of graphite on the supercooling of the PCM is not clear when a highly heat conductive material is added. In this study, the specific heat of the PCM based on sugar alcohol such as D-mannitol and inositol was measured with an adiabatic scanning calorimeter. The enthalpy and entropy during the phase-change process were obtained by the measured specific heat of the PCM. Additionally, the exergy analysis was conducted to evaluate the thermal energy storage of PCM. As the experimental results, the specific heat of D-mannitol during the phase change process was higher than that of inositol. Moreover, it was found that the addition of graphite powder at the mass fraction of 9% improves the thermal behavior of D-mannitol with lower supercooling while maintaining latent heat. The suppression of supercooling by the addition of 9% graphite powder was 37.5%.

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Open Access

Review

Article ID: 1613

MXene: A new revolution in the world of 2-D materials
by Ruby Garg, Mohit Agarwal

Energy Storage and Conversion, Vol.2, No.4, 2024; 1818 Views, 112 PDF Downloads

DOI: https://doi.org/10.59400/esc1613

MXenes have imposed a profound effect on materials science and nanotechnology fields after their discovery in 2011. Theoretical models have predicted more than 100 potential compositions of MXene whereas laboratory-scale synthesis reflects their success of over 40 distinct structures till date. The distinctive properties of MXenes have led to their use for a diverse range of applications, such as energy storage, environmental remediation, electronics, communications, gas and liquid separation and adsorption, biomedical fields, and optoelectronics. The increased interest of researchers in MXenes has led to a wide rise in research publications, showing their growing importance in different scientific domains. In 2024, MXenes had shown wide potential in various areas, including energy storage devices, electromagnetic interference shielding, nanocomposites, and hybrid materials. However, the variations in the choice of precursors, reactor design, cost, synthesis parameters pose several challenges in ensuring the production of high-quality MXenes. The applicability of MXenes continues to broaden as its compositions are continuously accelerating. This review aims is to provide a comprehensive overview of MXene history, its properties, challenges, latest trends, and different applications to highlight its potential and gather new audiences towards this family of two-dimensional materials.

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Open Access

Review

Article ID: 1631

Constructing polyolefin-based lithium-ion battery separators membrane for energy storage and conversion
by Lei Li, Fanmin Kong, Ang Xiao, Hao Su, Xiaolian Wu, Ziling Zhang, Haoqi Wang, Yutian Duan

Energy Storage and Conversion, Vol.2, No.4, 2024; 2878 Views, 1326 PDF Downloads

DOI: https://doi.org/10.59400/esc1631

Owing to the escalating demand for environmentally friendly commodities, lithium-ion batteries (LIBs) are gaining extensive recognition as a viable means of energy storage and conversion. LIBs comprise cathode and anode electrodes, electrolytes, and separators. Notably, the separator, a crucial and indispensable element in LIBs that mainly comprises a porous membrane material, necessitates substantial research focus. Scholars have consequently strived to devise novel systems that augment separator efficiency, bolster safety measures, and surmount existing constraints. This review endeavors to equip researchers with comprehensive information on polyolefin-based separator membranes, encompassing performance prerequisites, functional attributes, scientific advancements, and so on. Specifically, it scrutinizes the latest innovations in porous membrane configuration, fabrication, and enhancement that utilize the most prevalent polyolefin materials today. Consequently, robust and enduring membranes fabricated have demonstrated superior effectiveness across diverse applications, facilitating a circular economy that curbs waste materials, reduces operational expenses, and mitigates environmental impact.

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Open Access

Article

Article ID: 562

Tailored copper doped indium sulfide nanostructures as electrode material for supercapacitor and nano photocatalyst for dye degradation
by K.Lilly Mary, D. Geetha, P.S. Ramesh

Energy Storage and Conversion, Vol.2, No.4, 2024; 1805 Views, 1256 PDF Downloads

DOI: https://doi.org/10.59400/esc.v2i4.562

The unique copper-doped indium sulfide nanocrystals are synthesized by a gentle hydrothermal process. XRD, FTIR, XPS, FESEM/EDX, UV-DRS, and PL were used to characterize the final samples. Copper-doped indium sulfide nanostructures can be exploited as an active catalyst in photodegradation and as an electroactive material in supercapacitors due to their distinctive architecture. The copper-doped indium sulfide catalyst exhibits 85 percent photodegradation using methylene blue dye under natural sunlight irradiation, and the electrochemical test showed a capacitance of 668 Fg −1 at 1 Ag −1 in a 2 M KOH electrolyte solution. For future generations, photocatalyst and electrode can function as more desirable materials.

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Announcements

New Breakthrough in CO2 Electroreduction: Nitrided Copper-Iron Composite Oxides Transform Carbon Dioxide into Valuable Chemicals！

2024-10-08

We are excited to announce a groundbreaking study published in the latest issue of Energy Storage and Conversion (Volume 2, Issue 2, 2024), featuring a novel material that significantly advances the field of carbon dioxide (CO2) electroreduction. The article introduces a new class of catalysts derived from layered double hydroxides (LDHs) that have demonstrated exceptional performance in converting CO2 into methane (CH4) and formic acid (HCOOH).

Meet our first editorial team!

2024-07-18

微信截图_202411181648511.jpg

Editor-in-Chief

Prof. Xiaohu Yang

Xi'an Jiaotong University, China

eISSN

3029-2778

Publication Frequency

Quarterly

About the Publisher

Academic Publishing insists on taking academic exchange and publication as the main line, carrying out comprehensive management based on science and technology, and fully exploring excellent international publishing resources. Within 5 years, it will form a strategic framework and scale with science (S), technology (T), medicine (M), education (E), and humanities and arts (H) as the main publishing fields. Academic Publishing is headquartered in Singapore and based in Malaysia, with the United States and China providing the main scientific and academic resources. At the same time, it has established long-term good cooperative relations with other publishing companies, scientific research communities, and academic organizations in more than a dozen countries and regions. Academic Publishing uses English and Chinese as its main publishing languages, mainly publishing books, journals, and conference papers in print and online. The vast majority of publications follow the international open access policy, providing stable and long-term quality and professional publications. With the joint efforts of the expert team and our professional editorial team, our publications will gradually be indexed by international databases in stages to provide convenient and professional retrieval for various scholars. At the same time, manuscripts we accept will be subject to the peer review principle, and cutting-edge and innovative research articles will be preferentially accepted for peer reference and discussion. All kinds of our publications are welcome for peer to contribute, access, and download.

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Volume Arrangement

2024

2023

Featured Articles

Nitrided Copper-Iron Composite Oxides Derived from Layered Double Hydroxides for Enhanced Carbon Dioxide Electroreduction to Methane and Formic Acid

The reduction of carbon dioxide to valuable chemical products is a promising solution to address carbon balance and energy issues. Herein, amorphous nitrided copper-iron oxides are prepared by gas-phase nitriding of Cu Fe-layered double hydroxide precursor s with urea as nitrogen source. Amorphous materials are more likely to generate defect vacancies during the reaction process, and these vacancies can function as active sites for catalytic reactions. Therefore, the obtained materials show high activity for CO 2 electroreduction to methane and formic acid, achieving a total Faraday efficiency of 74.7% at −0.7 V vs RHE and exhibiting a continuous 10 h durability in the H-cell. The uniformly distributed Cu + sites act as active sites by losing electrons to activate CO 2 . During the CO 2 electroreduction , CO 2 is converted to *COOH via proton-electron coupling, *COOH combines directly with a proton in solution to produce the HCOOH product, and the other part of *COOH undergoes a protonated dehydration process to form the *CHO intermediate which dehydrates again to form CH 4 . This study provides a new approach for designing CO 2 electroreduction catalysts.

AlZnO magnetron sputtered thin film for photovoltaic application

Aluminum zinc oxide (AZO) is a nontoxic and a low-cost material that finds application as a transparent conducting electrode in photovoltaic devices. In this study the (direct current) DC magnetron sputtering of AZO films is carried out at different deposition times of 5, 10, 15, 20 and 25 min’s at room temperature and it’s structural, optical, electrical and morphological properties are studied for its use as a front contact for thin film solar cell application. The structural study suggests that the preferred orientation of grains along (002) plane having hexagonal structure and the optical and the electrical studies suggest that the films show an average transmission of 70% and a resistivity of the order of 10 -4 Ωcm. On the other hand, the scanning electron microscopy (SEM) images suggest the formation of packed grains having a homogeneous surface. Moreover in order to study the optoelectronic properties of prepared samples, the electronic and optical calculations of the AZO are performed by the first-principles calculations using density functional theory (DFT).

Investigation of self-excited induction generator for supporting domestic loads and its extension to a microgrid

This study provides a technical and financial analysis for the incorporation of a microgrid structure with a wind energy conversion system for producing electricity. This study’s primary aim is to provide solutions for issues that arise when isolated induction generators are employed with microgrids. A closed-loop smart electronic load controller is used to regulate the loads in the system that are supplied by the generation. A switched variable capacitor bank is used to supply reactive power initially during a voltage dip at varying winds and loads to sustain the voltage profile. Additionally, a simple voltage control loop-based controller for the generator side converter maintains the voltage at a steady level. Using HOMER software, an economic study of the suggested wind-based microgrid structure is also presented. A laboratory experimental setup is used to support the MATLAB/Simulink study of the proposed method and its control. The findings back the feasibility of implementing the suggested plan in grid-isolated regions for supplying critical loads.

Research progress on ZnO/MoS2/rGO ternary photocatalysts

Energy shortage and environmental pollution have become one of the important global issues, and semiconductor photocatalytic technology is considered as one of the effective means to solve these problems. As a new and efficient green material, ZnO has attracted wide attention. ZnO is widely used in the field of photocatalysis due to its non-toxicity, low cost, environmental friendliness, adjustable band gap, high electron density, and chemical stability. However, the recombination of photogenerated charge carriers in ZnO hinders its practical application and lowers the utilization efficiency of visible light. On the other hand, molybdenum disulfide/reduced graphene oxide (MoS 2 /rGO), as a binary non-precious metal co-catalyst, has a larger specific surface area, suitable band gap width, and visible light response capability compared to single-phase graphene co-catalyst. Therefore, introducing MoS 2 /rGO co-catalyst into the ZnO system can provide more active sites, reduce the probability of photogenerated charge carrier recombination, and improve the utilization efficiency of visible light. In this review, we summarize the hydrothermal synthesis methods for preparing this highly demanded nanocomposite material, including one-step and stepwise methods. Subsequently, we elaborate on the mechanism of enhancing light absorption and achieving efficient electron-hole separation behavior in the ternary system heterojunction structure during the photocatalytic process. Due to its significant advantages, this ternary system heterojunction structure has been widely applied in the field of photocatalysis, including applications such as pollutant degradation, sterilization, and water splitting.

Wind power forecasting technologies: A review

This study addresses the critical role of wind power forecasting in ensuring stable and reliable power system operations. Wind Power Forecasting is critical for the efficient operation of plant, time scheduling, and it’s balancing of power generation with grid integration systems. Due to its dependency on dynamic climatic conditions and associated factors, accurate wind power forecasting is challenging. The research delves into various aspects, including input data, input selection techniques, data pre-processing, and forecasting methods, with the aim of motivating researchers to design highly efficient online/offline models on weather-based data. The overarching goal is to enhance the reliability and stability of power systems while optimizing energy resource utilization. The analysis reveals that hybrid models offer more accurate results, highlighting their significance in the current era. This study investigates different Wind Power Forecasting (WPF) models from existing literature, focusing on input variables, time horizons, climatic conditions, pre-processing techniques, and sample sizes that affect model accuracy. It covers statistical models like ARMA and ARIMA, along with AI techniques including Deep Learning (DL), Machine Learning (ML), and neural networks, to estimate wind power.