A Highly Efficient and Robust Hybrid Structure of CoNiN@NiFe LDH for Overall Water Splitting by Accelerating Hydrogen Evolution Kinetics on NiFe LDH

2021 ◽  
pp. 151182
Author(s):  
Jie Wang ◽  
Guicai Lv ◽  
Cheng Wang
Keyword(s):  
Hydrogen Evolution ◽  
Water Splitting ◽  
Hybrid Structure ◽  
Highly Efficient ◽  
Overall Water Splitting

scholarly journals Graphene/MoS2/FeCoNi(OH)x and Graphene/MoS2/FeCoNiPx multilayer-stacked vertical nanosheets on carbon fibers for highly efficient overall water splitting

2021 ◽  
Vol 12 (1) ◽  
Author(s):  
Xixi Ji ◽  
Yanhong Lin ◽  
Jie Zeng ◽  
Zhonghua Ren ◽  
Zijia Lin ◽  
...  
Keyword(s):  
Water Splitting ◽  
Carbon Fibers ◽  
Graphene Nanosheets ◽  
Water Electrolysis ◽  
Hybrid Structure ◽  
Hydrogen Energy ◽  
Highly Efficient ◽  
Overall Water Splitting ◽  
Stable Oxygen ◽  
Excellent Stability

AbstractDevelopment of excellent and cheap electrocatalysts for water electrolysis is of great significance for application of hydrogen energy. Here, we show a highly efficient and stable oxygen evolution reaction (OER) catalyst with multilayer-stacked hybrid structure, in which vertical graphene nanosheets (VGSs), MoS2 nanosheets, and layered FeCoNi hydroxides (FeCoNi(OH)x) are successively grown on carbon fibers (CF/VGSs/MoS2/FeCoNi(OH)x). The catalyst exhibits excellent OER performance with a low overpotential of 225 and 241 mV to attain 500 and 1000 mA cm−2 and small Tafel slope of 29.2 mV dec−1. Theoretical calculation indicates that compositing of FeCoNi(OH)x with MoS2 could generate favorable electronic structure and decrease the OER overpotential, promoting the electrocatalytic activity. An alkaline water electrolyzer is established using CF/VGSs/MoS2/FeCoNi(OH)x anode for overall water splitting, which generates a current density of 100 mA cm−2 at 1.59 V with excellent stability over 100 h. Our highly efficient catalysts have great prospect for water electrolysis.

Mechanistic Insights on Ternary Ni2− x Co x P for Hydrogen Evolution and Their Hybrids with Graphene as Highly Efficient and Robust Catalysts for Overall Water Splitting

2016 ◽  
Vol 26 (37) ◽  
pp. 6785-6796 ◽  
Author(s):  
Jiayuan Li ◽  
Ming Yan ◽  
Xuemei Zhou ◽  
Zheng-Qing Huang ◽  
Zhaoming Xia ◽  
...  
Keyword(s):  
Hydrogen Evolution ◽  
Water Splitting ◽  
Highly Efficient ◽  
Overall Water Splitting

Accelerating hydrogen evolution in Ru-doped FeCoP nanoarrays with lattice distortion toward highly efficient overall water splitting

2020 ◽  
Vol 10 (24) ◽  
pp. 8314-8324
Author(s):  
Huan Liu ◽  
Xiaoning Li ◽  
Liangbing Ge ◽  
Cailing Peng ◽  
Liuyang Zhu ◽  
...  
Keyword(s):  
High Activity ◽  
Hydrogen Evolution ◽  
Water Splitting ◽  
Lattice Distortion ◽  
Highly Efficient ◽  
Overall Water Splitting

In situ synthesized Ru-doped FeCoP nanoarray electrocatalysts with high activity and stability for overall water splitting.

A general approach to the synthesis of transition metal phosphide nanoarrays on MXene nanosheets for pH-universal hydrogen evolution and alkaline overall water splitting

2020 ◽  
Vol 8 (28) ◽  
pp. 14234-14242 ◽  
Author(s):  
Liang Yan ◽  
Bing Zhang ◽  
Shangyou Wu ◽  
Jianlin Yu
Keyword(s):  
Transition Metal ◽  
Hydrogen Evolution ◽  
Water Splitting ◽  
Noble Metal ◽  
Metal Phosphide ◽  
Highly Efficient ◽  
Overall Water Splitting ◽  
Bifunctional Electrocatalysts ◽  
Transition Metal Phosphide

Exploring highly efficient, stable, and non-noble-metal bifunctional electrocatalysts for overall water splitting is greatly desired but still remains an ongoing challenge.

Active site engineering of Fe- and Ni-sites for highly efficient electrochemical overall water splitting

2018 ◽  
Vol 6 (43) ◽  
pp. 21445-21451 ◽  
Author(s):  
Lejuan Cai ◽  
Bocheng Qiu ◽  
Ziyuan Lin ◽  
Yang Wang ◽  
Sainan Ma ◽  
...  
Keyword(s):  
Hydrogen Evolution ◽  
Water Splitting ◽  
Oxygen Evolution ◽  
Active Site ◽  
Highly Efficient ◽  
Overall Water Splitting ◽  
Fe Sites

Robust oxygen evolution performance and excellent hydrogen evolution performance were realized by engineering the active Fe sites in Fe-doped Ni2P.

Mutually beneficial Co3O4@MoS2 heterostructures as a highly efficient bifunctional catalyst for electrochemical overall water splitting

2018 ◽  
Vol 6 (5) ◽  
pp. 2067-2072 ◽  
Author(s):  
Jia Liu ◽  
Jinsong Wang ◽  
Bao Zhang ◽  
Yunjun Ruan ◽  
Houzhao Wan ◽  
...  
Keyword(s):  
Hydrogen Evolution ◽  
Water Splitting ◽  
Oxygen Evolution ◽  
Hydrogen Evolution Reaction ◽  
Oxygen Evolution Reaction ◽  
Low Cost ◽  
Bifunctional Catalyst ◽  
Highly Efficient ◽  
Overall Water Splitting ◽  
Bifunctional Electrocatalysts

Designing low-cost and highly efficient bifunctional electrocatalysts for compatible integration with the hydrogen evolution reaction (HER) and the oxygen evolution reaction (OER) for overall water splitting is critical but challenging.

An IrRu alloy nanocactus on Cu2−xS@IrSy as a highly efficient bifunctional electrocatalyst toward overall water splitting in acidic electrolytes

2018 ◽  
Vol 6 (33) ◽  
pp. 16130-16138 ◽  
Author(s):  
Jinwhan Joo ◽  
Haneul Jin ◽  
Aram Oh ◽  
Byeongyoon Kim ◽  
Jaeyoung Lee ◽  
...  
Keyword(s):  
Hydrogen Evolution ◽  
Water Splitting ◽  
Oxygen Evolution ◽  
Hydrogen Evolution Reaction ◽  
Oxygen Evolution Reaction ◽  
Electrocatalytic Activity ◽  
Bifunctional Electrocatalyst ◽  
Highly Efficient ◽  
Overall Water Splitting ◽  
Acidic Electrolyte

An IrRu nanocactus on a Cu2−xS@IrSy core exhibits excellent electrocatalytic activity and stability toward both the hydrogen evolution reaction and the oxygen evolution reaction in an acidic electrolyte.

scholarly journals A structurally versatile nickel phosphite acting as a robust bifunctional electrocatalyst for overall water splitting

2018 ◽  
Vol 11 (5) ◽  
pp. 1287-1298 ◽  
Author(s):  
Prashanth W. Menezes ◽  
Chakadola Panda ◽  
Stefan Loos ◽  
Florian Bunschei-Bruns ◽  
Carsten Walter ◽  
...  
Keyword(s):  
Hydrogen Evolution ◽  
Water Splitting ◽  
Oxygen Evolution ◽  
Bifunctional Electrocatalyst ◽  
Overall Water Splitting

The mechanistically distinct and synergistic role of phosphite anions in hydrogen evolution and nickel cations in oxygen evolution have been uncovered for active and durable overall water splitting catalysis in nickel phosphite.

Growth of IrCu nanoislands with rich IrCu/Ir interfaces enables highly efficient overall water splitting in non-acidic electrolytes

2021 ◽  
Vol 416 ◽  
pp. 129128
Author(s):  
Dong Cao ◽  
Jiayi Wang ◽  
Huimin Zhang ◽  
Haoxiang Xu ◽  
Daojian Cheng
Keyword(s):  
Water Splitting ◽  
Highly Efficient ◽  
Overall Water Splitting
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