期刊
JOURNAL OF COLLOID AND INTERFACE SCIENCE
卷 537, 期 -, 页码 43-49出版社
ACADEMIC PRESS INC ELSEVIER SCIENCE
DOI: 10.1016/j.jcis.2018.10.079
关键词
Waste Cu cable wire; Oxygen evolution reaction; Cu(OH)(2); NiFe hydroxide; Nanowires
资金
- Human Resources Development program Of the Korea Institute of Energy Technology Evaluation and Planning (KETEP) - Korea government Ministry of Trade, Industry, and Energy [20164030201310]
- Korea Institute of Energy Technology Evaluation and Planning (KETEP)
- Ministry of Trade, Industry & Energy (MOTIE) of the Republic of Korea [20173010012980]
Currently, electronic waste (e-waste) is the world's most challenging and rapidly growing problem in the waste stream. To develop an alternative way to use e-waste (waste copper (Cu) wires) to accelerate the oxygen evolution reaction (OER) of water electrolysis, the waste Cu wires are used as a low-cost current collector. We demonstrate a simple electrodeposition process to deposit nickel-iron hydroxide (NiFe LDH) nanosheets on self-supported copper hydroxide (Cu(OH)(2)/Cu) nanowires grown via chemical-oxidation on waste Cu wire. Benefiting from the efficient electron transport, high mass activity, and surface area this electrocatalyst exhibits an efficient OER performance with a low overpotential of 275 mV and 390 mV at 20 and 100 mA cm(-2) respectively, with excellent stability. This work provides a promising pathway to recycle e-waste into value-added resources in various energy conversion applications. (C) 2018 Published by Elsevier Inc.
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