Nanoarchitectonics of bacterial cellulose with nickel-phosphorous alloy as a binder-free electrode for efficient hydrogen evolution reaction in neutral solution
| Autor: | Wenhai Wang, Siavash Khabazian, Marina Casas-Papiol, Soledad Roig-Sanchez, Anna Laromaine, Anna Roig, Dino Tonti |
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| Přispěvatelé: | Ministerio de Ciencia, Innovación y Universidades (España), European Commission, Consejo Superior de Investigaciones Científicas (España), China Scholarship Council, Casas Papiol, Marina, Roig Sánchez, Soledad, Tonti, Dino, Casas Papiol, Marina [0000-0002-8105-7919], Roig Sánchez, Soledad [0000-0002-7474-3769], Tonti, Dino [0000-0003-0240-1011] |
| Jazyk: | angličtina |
| Rok vydání: | 2022 |
| Předmět: | |
| Zdroj: | Digital.CSIC. Repositorio Institucional del CSIC instname |
| Popis: | Developing low-cost and efficient electrodes for hydrogen evolution reaction (HER) under neutral electrolytes remains an unattained milestone. We report a highly performing binder-free electrode through electroless deposition of Ni–P nanoparticles on bacterial cellulose (BC). Not needing carbonization to provide the electric conductivity, BC can maintain its excellent mechanical properties and thin fiber microstructure. The nanometric cellulose fibers facilitate the formation of small Ni–P nanoparticles, leading to more catalytic active sites. The obtained Ni–P/BC electrode presents remarkable HER activity with an overpotential of only 161 mV at 10 mA cm−2 and a low Tafel slope (141 mV dec−1) in 1 M potassium phosphate-buffered saline (pH = 7) electrolyte. Besides, Ni–P/BC also exhibits good stability for 24 h at 10 mA cm−2. This binder-free, low-cost, and easily fabricated electrode holds excellent promise for HER applications in benign neutral environments. This research was funded by the Spanish Government, through the "Severo Ochoa " Programme for Centers of Excellence in R&D (FUNFUTURE, CEX2019-000917-S), the projects RTI2018-096273-B-I00, RTI2018-097753-B-I00, with FEDER cofunding, and by the CSIC program for the Spanish Recovery, Transformation and Resilience Plan "Interdisciplinary Platform for Sustainable Energy Transitionthorn (PTI-TRANSENERthorn)" and the "Interdisciplinary Platform for Sustainable Plastics towards a Circular Economy (PTI-SUPLAST)" funded by the Recovery and Resilience Facility of the European Union, established by the Regulation (EU) 2020/2094. W.W. is grateful for the support from the China Scholarship Council (CSC No.:201808340076). The authors also participate in the FLOWBAT 2021 platform promoted by CSIC, the EPNOE Association and Aerogels COST ACTION (CA 18125). This work has been performed within the framework of the doctoral program in materials science at UAB (W. W. and S.R-S.) With funding from the Spanish government through the ‘Severo Ochoa Centre of Excellence’ accreditation (CEX2019-000917-S). |
| Databáze: | OpenAIRE |
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