Imperial College London
Alternate

Professor Fang Xie

Faculty of Engineering, Department of Materials

Professor of Functional Materials
 
 
 
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Contact

 

+44 (0)20 7594 9693f.xie Website

 
 
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Location

 

1.03Royal School of MinesSouth Kensington Campus

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Summary

 

Publications

Citation

BibTex format

@article{Zhang:2021:10.1002/adfm.202008989,
author = {Zhang, H and Jiang, Q and Hadden, JHL and Xie, F and Riley, DJ},
doi = {10.1002/adfm.202008989},
journal = {Advanced Functional Materials},
pages = {1--15},
title = {Pd ion-exchange and ammonia etching of a Prussian blue analogue to produce a high-performance water-splitting catalyst},
url = {http://dx.doi.org/10.1002/adfm.202008989},
volume = {31},
year = {2021}
}
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RIS format (EndNote, RefMan)

TY  - JOUR
AB  - The authors report an ammoniaassisted in situ cationexchange method for the synthesis of dodecagon Ndoped PdCoNi carbonbased nanosheets (PdeNiCoPBAC) and explore the catalytic performance. PdeNiCoPBAC exerts extremely low overpotential and Tafel slope for hydrogen evolution reaction (HER) and oxygen evolution reaction (OER) both in acidic and alkaline media, only 47 mV, 55 mV dec−1 (pH = 0, HER) and 147 mV, 67 mV dec−1 (pH = 14, HER), and 309 mV, 67 mV dec−1 (pH = 14, OER), outperforming commercial IrO2based and Ptbased catalysts. In addition, after 5000 cycles, the linear sweep voltammetry curve shows a negligible shift, indicating excellent stability performance. To test its overall watersplitting performance, PdeNiCoPBAC is applied as both cathode and anode materials. A high current density of 33 mA cm−2 at a battery voltage of 1.6 V is obtained, with the catalytic activity maintained at 97.3% after over 50 h. To get a further insight into the superior OER and HER performance, theoretical calculations are carried out, the better performance originates from the affinity difference of Pd and Ni atoms for gas atoms, and the replacement of inert atoms can decrease the binding energy and enhance the electrocatalytic activity.
AU  - Zhang,H
AU  - Jiang,Q
AU  - Hadden,JHL
AU  - Xie,F
AU  - Riley,DJ
DO  - 10.1002/adfm.202008989
EP  - 15
PY  - 2021///
SN  - 1616-301X
SP  - 1
TI  - Pd ion-exchange and ammonia etching of a Prussian blue analogue to produce a high-performance water-splitting catalyst
T2  - Advanced Functional Materials
UR  - http://dx.doi.org/10.1002/adfm.202008989
UR  - http://gateway.webofknowledge.com/gateway/Gateway.cgi?GWVersion=2&SrcApp=PARTNER_APP&SrcAuth=LinksAMR&KeyUT=WOS:000598304100001&DestLinkType=FullRecord&DestApp=ALL_WOS&UsrCustomerID=1ba7043ffcc86c417c072aa74d649202
UR  - https://onlinelibrary.wiley.com/doi/10.1002/adfm.202008989
UR  - http://hdl.handle.net/10044/1/85905
VL  - 31
ER  -
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