Thermally driven hydrogen compression using metal hydrides
Wiley » International Journal of Energy Research
by Mykhaylo Lototskyy, Vladimir Linkov
1y ago
This article overviews R&D activities related to the thermally-driven hydrogen compression utilising metal hydrides. The focus is put on the interrelation between properties of metal hydride materials and their hydrogen compression performances, first, operating pressure – temperature range, process productivity and efficiency. Typical design features of the hydrogen compression systems and ways of their optimization are considered. A brief techno-economic analysis of the MHHCs benchmarked against alternative hydrogen compression technologies is presented as well. Summary Hydrogen compre ..read more
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Hierarchical porous carbon derived from recycled bamboo waste as supercapacitors electrodes based on FeCl3‐catalyzed hydrothermal pretreatment: Pore regulation and high‐performance analysis
Wiley » International Journal of Energy Research
by Guofeng Qiu, Yang Guo, Jie Xu, Wenke Jia, Sixi Guo, Hongguan Wang, Fanhui Guo, Jianjun Wu
1y ago
A green and novel FeCl3-catalyzed hydrothermal pretreatment method is adopted to convert the bamboo shavings waste into bamboo-based hierarchical porous carbons (BHPCs) with ultra-high specific surface area and excellent electrochemical properties. Summary Herein, a green and novel FeCl3-catalyzed hydrothermal pretreatment method is adopted to convert the bamboo shavings waste into bamboo-based hierarchical porous carbons (BHPCs) with ultra-high specific surface area and excellent electrochemical properties. Utilizing this mild FeCl3 catalyst can not only promote the dehydration, condensatio ..read more
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N‐doped oxygen vacancy‐rich NiCo2O4 nanoarrays for supercapacitor and non‐enzymatic glucose sensing
Wiley » International Journal of Energy Research
by Jin Seong, Amar. M. Patil, Sanjib Baran Roy, Jaekyeong Lee, Seong Chan Jun
1y ago
(A) Schematic representation of the synthesis of electrode materials and available charge transfer channels, (B and C) supercapacitive and glucose sensing performance. Summary Battery-type transition metal oxides (TMOs) gained great attention as an electrode in a supercapacitor (SC) owing to their high electrochemical activity, however, the performance of SCs influenced by low intrinsic conductivity and lower cycling stability. To address the issues, we propose an effective strategy of nitrogen doping and increasing the oxygen vacancies of hydrothermally synthesized nickel-cobalt oxide (N-Ov ..read more
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Enhanced the electrochemical performance and stability of supercapattery device with carbon nanotube/cobalt‐manganese sulfide‐based composite electrode material
Wiley » International Journal of Energy Research
by Amir Muhammad Afzal, Muhammad Ali, Muhammad Waqas Iqbal, Muhammad Imran, Asad Ur Rehman, Sohail Mumtaz, Ju sung Kim, Eun Ha Choi, Yousef Mohammed Alanazi
1y ago
A high-performance supercapattery device is designed using the CoMnS/CNT//AC electrode. An astonishing value of the specific capacity of 137.06 C/g with the extraordinary value of energy density of 38.4 W h/Kg and power density of 1120 W/Kg at a low current density of 0.8 A/g are conceived. Summary Supercapattery devices have gained extraordinary attention due to high power and energy densities with excellent cycle stability compared to conventional storage devices. Herein, the cobalt manganese sulfide (CoMnS) is synthesized using the hydrothermal method, and designed the supercapattery devi ..read more
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Pre‐eminent design and performance of hybrid diatomic sulphide materials for supercapacitor applications
Wiley » International Journal of Energy Research
by Ganesan Anandha Babu, Perumal Sakthivel, Ravuri Syamsai, Sankaiya Asaithambi, Murugesan Karuppiah, Ganesan Ravi, Mani Navaneethan
1y ago
Pre-eminent design and performance of hybrid diatomic sulphide materials for supercapacitor applications. Summary An advanced type of CuCdS composite is synthesized using a one-step synthesis method. Nanomaterials of CdS, CuS, and their bimetal sulphides were synthesized using hydrothermal method and employed as an electrode for supercapacitor applications. The optimized Cu/Cd cations ratio with S (at %: 29:29:42) of bimetallic CuCdS composites have an improved electrochemical capacitance of 180 F/g at 0.5 A/g with 80.2% retention and 88% coulombic efficiency after 2000 cycles at 1  ..read more
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Enhanced photocatalytic activity and diode performance of ZnO‐GO nanocomposites via doping with aluminum
Wiley » International Journal of Energy Research
by Talaat A. Hameed, Walid Sharmoukh, Badawi Anis, Ahmed M. Youssef
1y ago
The combination of Al and GO offered a synergistic role in the photocatalytic and optoelectronic performance of ZnO. The Al reduced the band gap of ZnO to visible range, while GO is superior electron transporter, which minimizes the recombination probability and thus boosted removal efficiency of CR. The heterojunction diode based on Al-doped ZnO-GO achieved a magnified rectification (RR) and desirable ideality factor (n). Photocatalytic and diode performance of Al-doped ZnO-GO nanocomposite. Summary Herein, a twofold enhancement tactics were served to boost the photocatalytic activity as we ..read more
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Carbon black‐heteroatom‐doped graphene aerogel hybrid supported platinum nanoparticles as electrocatalysts for oxidation of methanol and formic acid
Wiley » International Journal of Energy Research
by M. Selim Çögenli, Ayşe Bayrakçeken Yurtcan
1y ago
Carbon black was used together with graphene aerogel (GA) and heteroatom-doped GA, as support materials. Pt/GA-C (carbon black and GA), Pt/NGA-C (carbon black- and nitrogen-doped GA), Pt/BGA-C (carbon black- and boron-doped GA) were synthesized by using, first, the modified Hummers method, second, hydrothermal treatment of support materials, and microwave irradiation method for Pt nanoparticles formation on support materials. The catalysts analysis was studied using cyclic voltammetry, impedance and short-term durability. Summary Supported catalysts are generally used for electrochemical rea ..read more
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Assessment of ionic liquid electrolytes for high‐performance lithium‐sulfur batteries using machine learning
Wiley » International Journal of Energy Research
by Aysegul Kilic, Ramazan Yildirim, Damla Eroglu
1y ago
Lift vs peak discharge capacity of ionic liquids as electrolytes Summary To realize the full potential of the lithium-sulfur (Li-S) batteries, the shuttling of the polysulfide (PS) intermediates between the electrodes should be prevented. Moreover, inactive material mass in the battery pack should be minimized to increase the system-level energy density. In this respect, ionic liquids (IL) are getting increasing attention as they can reduce the PS shuttle mechanism with their limited PS solubility and functionality in lean electrolyte conditions. In this work, a dataset is constructed from t ..read more
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Nano‐sheet and nano‐laminar vanadium nitride as anodes for high‐performance lithium‐ions storage
Wiley » International Journal of Energy Research
by Rui Jia Liu, Ling Xu Yang, Tian Yu Zhang, Wen Jun Wang, Hui Jun Liu, Chao Liu Zeng
1y ago
Nano-sheet and nano-laminar vanadium nitrides (VN) were prepared from heating the mixture of orthorhombic V2C and V2CTz MXene, respectively. Results show that Nano-laminar VN exhibits superior electrochemical performances to nano-sheet VN as an anode for lithium-ion batteries. Summary Transition metal nitrides involving vanadium nitrides (VN) hold great prospects for alkaline metal batteries. Regrettably, the absence of environmentally friendly synthesis techniques restricts its practical applications. In this work, a rational design of nano-sheet and nano-laminar VN was reported via a facil ..read more
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Influence of phase change materials on thermal comfort, greenhouse gas emissions, and potential indoor air quality issues across different climatic regions: A critical review
Wiley » International Journal of Energy Research
by Patrick Amoatey, Khalifa Al‐Jabri, Saleh Al‐Saadi
1y ago
PCM can improve indoor thermal comfort and personal cooling in extreme environments. However, more evidence from subjective assessment is required. Future studies should consider the importance of PCM in reducing carbon emissions and their indoor air pollutants emission potential. Summary There has been growing interest in applying phase change materials (PCMs) in buildings owing to their energy conservation/latent heat storage properties and potential to improve thermal comfort. Various reviews have extensively discussed the thermophysical properties of PCMs and their energy-saving potentia ..read more
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