Electrochemical Performance and Hydrogen Storage of Ni–Pd–P–B Glassy Alloy
The search for hydrogen storage materials is a challenging task. In this work, we tried to test metallic glass-based pseudocapacitive material for electrochemical hydrogen storage potential. An alloy ingot with an atomic composition of Ni<sub>60</sub>Pd<sub>20</sub>P<sub&g...
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MDPI AG
2022-12-01
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| Online Access: | https://www.mdpi.com/2079-4991/12/23/4310 |
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| author | Ahmed Alshahrie Bassim Arkook Wafaa Al-Ghamdi Samah Eldera Thuraya Alzaidi Hassan Bamashmus Elsayed Shalaan |
| author_facet | Ahmed Alshahrie Bassim Arkook Wafaa Al-Ghamdi Samah Eldera Thuraya Alzaidi Hassan Bamashmus Elsayed Shalaan |
| author_sort | Ahmed Alshahrie |
| collection | DOAJ |
| description | The search for hydrogen storage materials is a challenging task. In this work, we tried to test metallic glass-based pseudocapacitive material for electrochemical hydrogen storage potential. An alloy ingot with an atomic composition of Ni<sub>60</sub>Pd<sub>20</sub>P<sub>16</sub>B<sub>4</sub> was prepared via arc melting of extremely pure elements in an Ar environment. A ribbon sample with a width of 2 mm and a thickness of 20 mm was produced via melt spinning of the prepared ingot. Electrochemical dealloying of the ribbon sample was conducted in 1 M H<sub>2</sub>SO<sub>4</sub> to prepare a nanoporous glassy alloy. The Brunauer–Emmett–Teller (BET) and Langmuir methods were implemented to obtain the total surface area of the nanoporous glassy alloy ribbon. The obtained values were 6.486 m<sup>2</sup>/g and 15.082 m<sup>2</sup>/g, respectively. The Dubinin–Astakhov (DA) method was used to calculate pore radius and pore volume; those values were 1.07 nm and 0.09 cm<sup>3</sup>/g, respectively. Cyclic voltammetry of the dealloyed samples revealed the pseudocapacitive nature of this alloy. Impedance of the dealloying sample was measured at different frequencies through use of electrochemical impedance spectroscopy (EIS). A Cole–Cole plot established a semicircle with a radius of ~6 Ω at higher frequency, indicating low interfacial charge-transfer resistance, and an almost vertical Warburg slope at lower frequency, indicating fast diffusion of ions to the electrode surface. Charge–discharge experiments were performed at different constant currents (75, 100, 125, 150, and 200 mA/g) under a cutoff potential of 2.25 V vs. Ag/AgCl electrode in a 1 M KOH solution. The calculated maximum storage capacity was 950 mAh/g. High-rate dischargeability (HRD) and capacity retention (<inline-formula><math xmlns="http://www.w3.org/1998/Math/MathML" display="inline"><semantics><mrow><msub><mi>S</mi><mi>n</mi></msub></mrow></semantics></math></inline-formula>) for the dealloyed glassy alloy ribbon sample were evaluated. The calculated capacity retention rate at the 40th cycle was 97%, which reveals high stability. |
| first_indexed | 2024-03-09T17:37:48Z |
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| spelling | doaj.art-80b63455f67740599a85ed6279875b362023-11-24T11:48:53ZengMDPI AGNanomaterials2079-49912022-12-011223431010.3390/nano12234310Electrochemical Performance and Hydrogen Storage of Ni–Pd–P–B Glassy AlloyAhmed Alshahrie0Bassim Arkook1Wafaa Al-Ghamdi2Samah Eldera3Thuraya Alzaidi4Hassan Bamashmus5Elsayed Shalaan6Physics Department, Faculty of Science, King Abdulaziz University, Jeddah 21589, Saudi ArabiaPhysics Department, Faculty of Science, King Abdulaziz University, Jeddah 21589, Saudi ArabiaPhysics Department, Faculty of Science, King Abdulaziz University, Jeddah 21589, Saudi ArabiaPhysics Department, Faculty of Science, King Abdulaziz University, Jeddah 21589, Saudi ArabiaPhysics Department, Faculty of Science, King Abdulaziz University, Jeddah 21589, Saudi ArabiaCollege of Engineering, University of Business and Technology (UBT), Jeddah 23847, Saudi ArabiaPhysics Department, Faculty of Science, King Abdulaziz University, Jeddah 21589, Saudi ArabiaThe search for hydrogen storage materials is a challenging task. In this work, we tried to test metallic glass-based pseudocapacitive material for electrochemical hydrogen storage potential. An alloy ingot with an atomic composition of Ni<sub>60</sub>Pd<sub>20</sub>P<sub>16</sub>B<sub>4</sub> was prepared via arc melting of extremely pure elements in an Ar environment. A ribbon sample with a width of 2 mm and a thickness of 20 mm was produced via melt spinning of the prepared ingot. Electrochemical dealloying of the ribbon sample was conducted in 1 M H<sub>2</sub>SO<sub>4</sub> to prepare a nanoporous glassy alloy. The Brunauer–Emmett–Teller (BET) and Langmuir methods were implemented to obtain the total surface area of the nanoporous glassy alloy ribbon. The obtained values were 6.486 m<sup>2</sup>/g and 15.082 m<sup>2</sup>/g, respectively. The Dubinin–Astakhov (DA) method was used to calculate pore radius and pore volume; those values were 1.07 nm and 0.09 cm<sup>3</sup>/g, respectively. Cyclic voltammetry of the dealloyed samples revealed the pseudocapacitive nature of this alloy. Impedance of the dealloying sample was measured at different frequencies through use of electrochemical impedance spectroscopy (EIS). A Cole–Cole plot established a semicircle with a radius of ~6 Ω at higher frequency, indicating low interfacial charge-transfer resistance, and an almost vertical Warburg slope at lower frequency, indicating fast diffusion of ions to the electrode surface. Charge–discharge experiments were performed at different constant currents (75, 100, 125, 150, and 200 mA/g) under a cutoff potential of 2.25 V vs. Ag/AgCl electrode in a 1 M KOH solution. The calculated maximum storage capacity was 950 mAh/g. High-rate dischargeability (HRD) and capacity retention (<inline-formula><math xmlns="http://www.w3.org/1998/Math/MathML" display="inline"><semantics><mrow><msub><mi>S</mi><mi>n</mi></msub></mrow></semantics></math></inline-formula>) for the dealloyed glassy alloy ribbon sample were evaluated. The calculated capacity retention rate at the 40th cycle was 97%, which reveals high stability.https://www.mdpi.com/2079-4991/12/23/4310hydrogen storageelectrochemical dealloyingmetallic glasssupercapacitors |
| spellingShingle | Ahmed Alshahrie Bassim Arkook Wafaa Al-Ghamdi Samah Eldera Thuraya Alzaidi Hassan Bamashmus Elsayed Shalaan Electrochemical Performance and Hydrogen Storage of Ni–Pd–P–B Glassy Alloy Nanomaterials hydrogen storage electrochemical dealloying metallic glass supercapacitors |
| title | Electrochemical Performance and Hydrogen Storage of Ni–Pd–P–B Glassy Alloy |
| title_full | Electrochemical Performance and Hydrogen Storage of Ni–Pd–P–B Glassy Alloy |
| title_fullStr | Electrochemical Performance and Hydrogen Storage of Ni–Pd–P–B Glassy Alloy |
| title_full_unstemmed | Electrochemical Performance and Hydrogen Storage of Ni–Pd–P–B Glassy Alloy |
| title_short | Electrochemical Performance and Hydrogen Storage of Ni–Pd–P–B Glassy Alloy |
| title_sort | electrochemical performance and hydrogen storage of ni pd p b glassy alloy |
| topic | hydrogen storage electrochemical dealloying metallic glass supercapacitors |
| url | https://www.mdpi.com/2079-4991/12/23/4310 |
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