Journal ArticleDOI
CoP2/Fe-CoP2 yolk-shell nanoboxes as efficient electrocatalysts for the oxygen evolution reaction.
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In this article, the authors synthesized CoP2/Fe-CoP2 yolk-shell nanoboxes (YSBs) as efficient electrocatalysts for the oxygen evolution reaction (OER).Abstract:
The development of an efficient electrocatalyst is an important requirement for water splitting systems to produce clean and sustainable hydrogen fuel Herein, we synthesized CoP2/Fe-CoP2 yolk–shell nanoboxes (YSBs) as efficient electrocatalysts for the oxygen evolution reaction (OER) Initially, zeolitic imidazolate framework-67/CoFe-Prussian blue analogue (ZIF-67/CoFe-PBA) YSBs were prepared by the reaction of ZIF-67 and [Fe(CN)6]3− ions in the presence of a small amount of water as an etching agent The size of the CoP2 yolk depends on the amount of water The heteronanostructure composed of the CoP2 yolk and the FexCo1−xP2 shell with a cubic shape was obtained by phosphidation of ZIF-67/CoFe-PBA YSBs Benefiting from the unique structure and chemical composition, the CoP2/Fe-CoP2 YSB electrocatalyst has a large specific surface area of 114 m2 g−1 and shows superior electrocatalytic performances for the OER such as a low overpotential of 266 mV, a small Tafel slope value of 681 mV dec−1, and excellent cyclic stabilityread more
Citations
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Journal ArticleDOI
The cutting-edge phosphorus-rich metal phosphides for energy storage and conversion
Xudong Zhao,Xianglong Kong,Zhiliang Liu,Zhi Li,Zewei Xie,Zhuoyan Wu,Fei He,Xinghua Chang,Piaoping Yang,Jie Zheng,Xingguo Li +10 more
TL;DR: In this article, a review summarizes the up-to-date advances of P-rich metal phosphides (MPs) in energy storage and conversion from typical structures, main synthetic methods and diversified advanced applications.
Journal ArticleDOI
ZIF-67-based catalysts for oxygen evolution reaction
TL;DR: In this paper, the morphological engineering of the original ZIF-67 and its derivatives (core-shell, hollow, and array structures) through doping (cation doping, anion doping, and co-doping), derivative composition engineering (metal oxide, phosphide, sulfide, selenide, and telluride), and corresponding single-atom catalysis.
Journal ArticleDOI
Encapsulating Fe2O3 Nanotubes into Carbon-Coated Co9S8 Nanocages Derived from a MOFs-Directed Strategy for Efficient Oxygen Evolution Reactions and Li-Ions Storage
Shoushuang Huang,Zhiqiang Jin,Yanwei Ding,Ping Ning,Qiaochuan Chen,Jie Fu,Qian Zhang,Jie Zhang,Peijun Xin,Yong Jiang,Zhangjun Hu,Zhangjun Hu +11 more
TL;DR: In this paper, a yolk-shell structure of Fe2 O3 nanotube@hollow Co9 S8 nanocage@C is rationally prepared, and a prearranged sequence is followed by coating of zeolitic imidazolate framework (ZIF-67) layer, chemical etching of ZIF -67 by thioacetamide, and eventual annealing treatment.
Journal ArticleDOI
Earth-Abundant Electrocatalysts for Water Splitting: Current and Future Directions
Ibn Shamsah,M Sami +1 more
TL;DR: In this paper, the authors summarized current advances in the synthesis of low-cost earth-abundant electrocatalysts for overall water splitting, with a particular focus on how to be linked with photoelectrocatalytic water splitting devices.
Journal ArticleDOI
Tailoring the structure and function of metal organic framework by chemical etching for diverse applications
Yi-Tao Feng,Jian-Quan Yao +1 more
TL;DR: In this article , a review focusing on the topic of "etching MOFs" is presented, which can be broadly classified into four categories including pore engineering, surface/facet modification, defect modification and self-templated conversion to layered metal hydroxides (LDHs).
References
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Journal ArticleDOI
Hierarchical nickel-cobalt phosphide yolk-shell spheres as highly active and stable bifunctional electrocatalysts for overall water splitting.
TL;DR: The superior activity and long-term stability demonstrate that the hierarchical mixed Ni-Co phosphides have promising potential for application in large-scale water splitting.
Journal ArticleDOI
Sea urchin-like cobalt–iron phosphide as an active catalyst for oxygen evolution reaction
TL;DR: Sea urchin-like (CoxFe1-x)2P shows Co/Fe-composition dependent catalysis for oxygen evolution reaction (OER) in 0.1 M KOH, offering a new synergistic approach to tune and optimize the electrocatalysis of OER.
Journal ArticleDOI
Bimetallic Carbides-Based Nanocomposite as Superior Electrocatalyst for Oxygen Evolution Reaction
TL;DR: This work presents the first evidence that the bimetallic carbides were used as the OER catalysts with such high OER activity, and shows superior OER performances are strongly associated with the active Co6Mo6C2 particles, polypyrrole (PPy)-derived N-doped porous carbon, and the conductive RGO films.
Journal ArticleDOI
Fe-doped CoP core–shell structure with open cages as efficient electrocatalyst for oxygen evolution
Jing-Yi Xie,Zi-Zhang Liu,Jia Li,Lei Feng,Min Yang,Yu Ma,Da-Peng Liu,Lei Wang,Yong-Ming Chai,Bin Dong +9 more
TL;DR: In this paper, a bimetallic core-shell structure with open cages of Fe-doped CoP (Fe-CoP cage) has been synthesized using CoFe-PBA cage-4 as precursor through a facile hydrothermal method and following phosphating process.
Journal ArticleDOI
Porous Cobalt Phosphide Polyhedrons with Iron Doping as an Efficient Bifunctional Electrocatalyst.
Feng Li,Yunfei Bu,Yunfei Bu,Zijian Lv,Javeed Mahmood,Gao-Feng Han,Ishfaq Ahmad,Guntae Kim,Qin Zhong,Jong-Beom Baek +9 more
TL;DR: With varying doping levels of Fe, the optimized Fe-doped porous cobalt phosphide polyhedron exhibits significantly enhanced HER and OER performances, including low onset overpotentials, large current densities, as well as small Tafel slopes and good electrochemical stability during HER andOER.