Photothermal coupling electrolysis on Ni–W–B toward practical overall water splitting

2019 ◽  
Vol 7 (20) ◽  
pp. 12440-12445 ◽  
Author(s):  
Weiju Hao ◽  
Renbing Wu ◽  
Hongyuan Yang ◽  
Yanhui Guo
Keyword(s):  
Water Splitting ◽  
Current Density ◽  
Cell Voltage ◽  
Photothermal Effect ◽  
Carbon Cloth ◽  
Cell Temperature ◽  
Overall Water Splitting ◽  
A Current

An overall water splitting device assembled using a photothermal effect coupled Ni–W–B/carbon cloth electrode could deliver a current density of 25 mA cm−2 at an ultralow cell voltage of 1.524 V without heating the whole system, which is comparable to its performance at an elevated cell temperature of 50 °C.

An advanced and highly efficient Ce assisted NiFe-LDH electrocatalyst for overall water splitting

2020 ◽  
Vol 4 (1) ◽  
pp. 312-323 ◽  
Author(s):  
Harsharaj S. Jadhav ◽  
Animesh Roy ◽  
Bezawit Z. Desalegan ◽  
Jeong Gil Seo
Keyword(s):  
Water Splitting ◽  
Current Density ◽  
Room Temperature ◽  
Cell Voltage ◽  
Highly Efficient ◽  
Overall Water Splitting ◽  
A Cell ◽  
A Current

A room-temperature synthesized NiFeCe2 electrocatalyst delivered a current density of 10 mA cm−2 at a cell voltage of 1.59 V when used as the electrolyzer.

Efficient bifunctional catalysts for overall water splitting: porous Fe–Mo oxide hybrid nanorods

Nanoscale ◽  
2020 ◽  
Vol 12 (13) ◽  
pp. 7116-7123 ◽  
Author(s):  
Wei Chen ◽  
Guangfu Qian ◽  
Qinglian Xu ◽  
Chen Yu ◽  
Mengya Yu ◽  
...  
Keyword(s):  
Metal Oxide ◽  
Water Splitting ◽  
Current Density ◽  
Bifunctional Catalysts ◽  
Binary Metal ◽  
Overall Water Splitting ◽  
Binary Metal Oxide ◽  
A Current

In this work, binary metal oxide porous nanorods are synthesized and exhibit evidently small overpotentials for OER and HER. They also display remarkable stability by holding a current density of ±200 mA cm−2 for 85 h for OER/HER.

High-performance overall water splitting based on amorphous iron doped cobalt tungstate via facile co-precipitation

2021 ◽  
Vol 9 (15) ◽  
pp. 9753-9760
Author(s):  
Jin Wu ◽  
Renjie Xie ◽  
Xiangchen Hu ◽  
Zhiwei Nie ◽  
Yanuo Shi ◽  
...  
Keyword(s):  
Water Splitting ◽  
Current Density ◽  
High Performance ◽  
Amorphous Iron ◽  
Bifunctional Electrocatalyst ◽  
Overall Water Splitting ◽  
Iron Doped ◽  
Cobalt Tungstate ◽  
Co Precipitation ◽  
A Current

The as-prepared amorphous Fe-doped CoWO4 bifunctional electrocatalyst shows a low overpotential of 259 and 118 mV to reach a current density of 10 mA cm−2 for the OER and HER in 1 M KOH, respectively.

Construction of a MnCo2O4@NiyMx (S and P) crosslinked network for efficient electrocatalytic water splitting

CrystEngComm ◽  
2019 ◽  
Vol 21 (47) ◽  
pp. 7293-7302 ◽  
Author(s):  
Xiaoqiang Du ◽  
Jianpeng Fu ◽  
Xiaoshuang Zhang
Keyword(s):  
Water Splitting ◽  
Current Density ◽  
Cell Voltage ◽  
A Current

Using MnCo2O4@Ni3S2 as a bifunctional water splitting catalyst, an overpotential of ∼370 mV is obtained at a very low cell voltage of 1.60 V with a current density of 10 mA cm−2 in 1.0 M KOH.

Controllable synthesis of Cu–Ni–M (M = S, P and Se) hybrid nanoarrays for efficient water splitting reaction

2021 ◽  
Author(s):  
Nannan Chen ◽  
Yanhong Wang ◽  
Xiaoqiang Du ◽  
Xiaoshuang Zhang
Keyword(s):  
Water Splitting ◽  
Current Density ◽  
Cell Voltage ◽  
Controllable Synthesis ◽  
A Cell ◽  
A Current

The results demonstrate that Cu–Ni–S/NF//Cu–Ni–P/NF pairs show superior water splitting performance with only requiring a cell voltage of 1.50 V to achieve a current density of 20 mA cm−2.

Design and synthesis of integrally structured Ni3N nanosheets/carbon microfibers/Ni3N nanosheets for efficient full water splitting catalysis

2017 ◽  
Vol 5 (19) ◽  
pp. 9377-9390 ◽  
Author(s):  
Tingting Liu ◽  
Mian Li ◽  
Chuanlai Jiao ◽  
Mehboob Hassan ◽  
Xiangjie Bo ◽  
...  
Keyword(s):  
Water Splitting ◽  
Current Density ◽  
Cell Voltage ◽  
Electrolysis Cell ◽  
Design And Synthesis ◽  
A Cell ◽  
Carbon Microfibers ◽  
A Current

A (−) Ni3N/CMFs/Ni3N‖Ni3N/CMFs/Ni3N (+) electrolysis cell requires a cell voltage of only 1.65 V to achieve a current density of 20 mA cm−2.

Controllable synthesis of NiO/Ni3S2 hybrid arrays as efficient electrocatalysts for water splitting

2018 ◽  
Vol 42 (22) ◽  
pp. 18201-18207 ◽  
Author(s):  
Xiaoqiang Du ◽  
Qibin Wang ◽  
Xiaoshuang Zhang
Keyword(s):  
Water Splitting ◽  
Current Density ◽  
Cell Voltage ◽  
Controllable Synthesis ◽  
A Cell ◽  
A Current

NiO/Ni3S2 affords a current density of 10 mA cm−2 in 1.0 M KOH at a cell voltage of 1.59 V, i.e., comparable to the commercial 20 wt% IrO2/C–40 wt% Pt/C couple (1.55 V at 10 mA cm−2).

Cu–Co–M arrays on Ni foam as monolithic structured catalysts for water splitting: effects of co-doped S-P

2019 ◽  
Vol 48 (4) ◽  
pp. 1322-1331 ◽  
Author(s):  
Xiaoqiang Du ◽  
Qizhao Shao ◽  
Xiaoshuang Zhang
Keyword(s):  
Water Splitting ◽  
Current Density ◽  
Cell Voltage ◽  
Ni Foam ◽  
Structured Catalysts ◽  
A Current ◽  
Co Doped

Using Cu–Co–P-S as a bifunctional water-splitting catalyst, overpotential of ∼320 mV is obtained at a very low cell voltage of 1.55 V with a current density of 20 mA cm−2 in 1.0 M KOH.

Oxide/sulfide-based hybrid arrays as robust electrocatalysts for water splitting

2018 ◽  
Vol 47 (30) ◽  
pp. 10273-10280 ◽  
Author(s):  
Xiaoqiang Du ◽  
Qibin Wang ◽  
Yu Li ◽  
Xiaoshuang Zhang
Keyword(s):  
Water Splitting ◽  
Current Density ◽  
Cell Voltage ◽  
A Cell ◽  
A Current

NiCo2O4/Ni3S2 affords a current density of 10 mA cm−2 in 1.0 M KOH at a cell voltage of 1.58 V, i.e., comparable to that of the commercial 20 wt% IrO2/C–40 wt% Pt/C couple (1.52 V at 10 mA cm−2).

Controlled synthesis of Ni(OH)2/Ni3S2hybrid nanosheet arrays as highly active and stable electrocatalysts for water splitting

2018 ◽  
Vol 6 (16) ◽  
pp. 6938-6946 ◽  
Author(s):  
Xiaoqiang Du ◽  
Zhi Yang ◽  
Yu Li ◽  
Yaqiong Gong ◽  
Min Zhao
Keyword(s):  
Water Splitting ◽  
Current Density ◽  
Cell Voltage ◽  
Controlled Synthesis ◽  
Highly Active ◽  
Nanosheet Arrays ◽  
A Current

Using Ni(OH)2/Ni3S2-12h as a bifunctional water splitting catalyst, with an overpotential of ∼340 mV, which is obtained at a very low cell voltage of 1.57 V with a current density of 10 mA cm−2in 1.0 M KOH.

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