TY - JOUR
T1 - Nickel phosphides electrodeposited on TiO2 nanotube arrays as electrocatalysts for hydrogen evolution
AU - Gao, Shiyuan
AU - Zavabeti, Ali
AU - Wang, Bin
AU - Ren, Rui
AU - Yang, Chunhui
AU - Liu, Zhongqing
AU - Wang, Yichao
PY - 2021
Y1 - 2021
N2 - Nickel phosphide (NiPx)-based nanocomposites emerged as a new class of highly promising non-noble-metal-based electrocatalysts for hydrogen evolution reactions (HER). However, conventional synthesis for this type of nanocomposite involves using harsh organic solvents and multiple complicated procedures as well as the release of concomitant toxic gases, thus significantly restricting their practical applications. To explore a much greener and more sustainable synthesis approach, a facile one-step electrodeposition technique for nanoelectrode toward HER is developed in this research, in which amorphous NiPx is anchored onto TiO2 nanotube arrays to form a nanocomposite material. The synthesized nanocomposites have a synergistic coupling of material properties in two components of the nanocomposites, with an enhanced charge transfer and electrochemically active surface areas. Because of such unique characteristics, the system exhibits a remarkable catalytic reduction activity and superior stability in alkaline electrolytes, requiring overpotentials of 104 and 129 mV to achieve current densities of 10 and 20 mA cm-2, respectively. This method provides an effective and green approach to fabricate NiPx-based nanocomposites with enhanced HER performances.
AB - Nickel phosphide (NiPx)-based nanocomposites emerged as a new class of highly promising non-noble-metal-based electrocatalysts for hydrogen evolution reactions (HER). However, conventional synthesis for this type of nanocomposite involves using harsh organic solvents and multiple complicated procedures as well as the release of concomitant toxic gases, thus significantly restricting their practical applications. To explore a much greener and more sustainable synthesis approach, a facile one-step electrodeposition technique for nanoelectrode toward HER is developed in this research, in which amorphous NiPx is anchored onto TiO2 nanotube arrays to form a nanocomposite material. The synthesized nanocomposites have a synergistic coupling of material properties in two components of the nanocomposites, with an enhanced charge transfer and electrochemically active surface areas. Because of such unique characteristics, the system exhibits a remarkable catalytic reduction activity and superior stability in alkaline electrolytes, requiring overpotentials of 104 and 129 mV to achieve current densities of 10 and 20 mA cm-2, respectively. This method provides an effective and green approach to fabricate NiPx-based nanocomposites with enhanced HER performances.
UR - https://hdl.handle.net/1959.7/uws:63131
U2 - 10.1021/acsanm.1c00134
DO - 10.1021/acsanm.1c00134
M3 - Article
SN - 2574-0970
VL - 4
SP - 4542
EP - 4551
JO - ACS Applied Nano Materials
JF - ACS Applied Nano Materials
IS - 5
ER -