Uncovering the role of Ag in layer-alternating Ni3S2/Ag/Ni3S2 as an electrocatalyst with enhanced OER performance

2020 ◽  
Vol 7 (19) ◽  
pp. 3627-3635 ◽  
Author(s):  
Rui Guo ◽  
Yan He ◽  
Renchao Wang ◽  
Junhua You ◽  
Hongji Lin ◽  
...  
Keyword(s):  
Water Splitting ◽  
Current Density ◽  
High Current Density ◽  
High Current

It is increasingly important to develop an efficient OER catalyst that can provide high current density at low overpotentials to improve water splitting efficiency.

Preparation and Characterization of CMC-PVA/PVA-SA-MePc (COOH)8/CS-PVA Bipolar Membrane Using Electrospinning Technique

2013 ◽  
Vol 774-776 ◽  
pp. 795-798
Author(s):  
Ting Jin Zhou ◽  
Min Lu ◽  
Ri Yao Chen
Keyword(s):  
Polyvinyl Alcohol ◽  
Water Splitting ◽  
Current Density ◽  
Voltage Drop ◽  
High Current Density ◽  
High Current ◽  
Bipolar Membrane ◽  
Electrospinning Technique ◽  
Exchange Layer

Carboxymethyl cellulose (CMC)-polyvinyl alcohol (PVA) and chitosan (CS)-polyvinyl alcohol were cross-linked by Fe3+and glutaraldehyde respectively to prepare cation exchange layer and anion exchange layer, and polyvinyl alcohol-sodium alginate (SA)-metal octocarboxyphthalocyanine (MePc (COOH)8, a kind of water splitting catalyst, here, Me stands for Fe3+or Co2+) nanofibers were prepared by electrospinning technique and introduced into the interlayer to obtain the CMC-PVA/PVA-SA-MePc (COOH)8/CS-PVA bipolar membrane (BPM). The experimental results showed that compared with the BPM without the PVA-SA-MePc (COOH)8interlayer, the water splitting efficiency at the interlayer of the CMC-PVA/PVA-SA-MePc (COOH)8/ CS-PVA BPM was obviously increased, and its membrane impedance decreased. When the concentration of FePc (COOH)8in the PVA-SA-FePc (COOH)8nanofibers was 3.0%, the trans-membrane voltage drop (IRdrop) of the CMC-PVA/PVA-SA-FePc (COOH)8/CS-PVA BPM was as low as 0.6V at a high current density of 90 mA/cm2.

Layer-structured FeCo bihydroxide as an ultra-stable bifunctional electrocatalyst for water splitting at high current densities

2021 ◽  
Author(s):  
Chaoyang Sun ◽  
Hui Wang ◽  
Shan Ji ◽  
Xuyun Wang ◽  
Vladimir Linkov ◽  
...  
Keyword(s):  
Water Splitting ◽  
Current Density ◽  
High Stability ◽  
High Current Density ◽  
High Current ◽  
Bifunctional Electrocatalyst ◽  
Current Densities ◽  
Double Hydroxide

A layered FeCo double hydroxide bifunctional water cracking electrocatalyst with ultra-high stability at high current density was developed.

Bifunctional CoNi/CoFe2O4 /Ni foam electrodes for efficient overall water splitting at a high current density

2018 ◽  
Vol 6 (39) ◽  
pp. 19221-19230 ◽  
Author(s):  
Shasha Li ◽  
Suchada Sirisomboonchai ◽  
Akihiro Yoshida ◽  
Xiaowei An ◽  
Xiaogang Hao ◽  
...  
Keyword(s):  
Porous Structure ◽  
Water Splitting ◽  
Current Density ◽  
High Current Density ◽  
Nickel Foam ◽  
High Current ◽  
Ni Foam ◽  
Overall Water Splitting

An electrocatalyst composed of CoNi(hydroxide) nanosheets and flower-like CoFe2O4 particles with multiple porous structure is successfully deposited on nickel foam and applied for overall water splitting.

A three-dimensional coral-like Zn,O-codoped Ni3S2 electrocatalyst for efficient overall water splitting at a large current density

2022 ◽  
Author(s):  
Liyun Cao ◽  
Yifei Zhang ◽  
Liangliang Feng ◽  
Danyang He ◽  
Qianqian Liu ◽  
...  
Keyword(s):  
Water Splitting ◽  
Current Density ◽  
Solvothermal Method ◽  
High Current Density ◽  
Nickel Foam ◽  
Three Dimensional ◽  
High Current ◽  
Large Current ◽  
Large Current Density ◽  
Facile Solvothermal Method

A three-dimensional coral-like Zn,O-codoped Ni3S2 nanostructure is grown on nickel foam via a facile solvothermal method, exhibiting excellent electrocatalytic performance at high current density.

scholarly journals Sea coral-like NiCo2O4@(Ni, Co)OOH heterojunctions for enhancing overall water-splitting

2018 ◽  
Vol 8 (16) ◽  
pp. 4151-4158 ◽  
Author(s):  
Leiming Tao ◽  
Man Li ◽  
Shaohang Wu ◽  
Qinglong Wang ◽  
Xin Xiao ◽  
...  
Keyword(s):  
Water Splitting ◽  
Current Density ◽  
High Current Density ◽  
Low Cost ◽  
Water Electrolysis ◽  
Industrial Water ◽  
High Current ◽  
Overall Water Splitting

Efficient and low-cost sea coral-like NiCo2O4@(Ni, Co)OOH heterojunction catalysts meet the high current density requirements for industrial water electrolysis applications.

Corrosion and Alloy Engineering in Rational Design of High Current Density Electrodes for Efficient Water Splitting

2020 ◽  
Vol 10 (24) ◽  
pp. 1904020 ◽  
Author(s):  
Vasanth Rajendiran Jothi ◽  
Karuppasamy Karuppasamy ◽  
Thandavarayan Maiyalagan ◽  
Hashikaa Rajan ◽  
Chi‐Young Jung ◽  
...  
Keyword(s):  
Water Splitting ◽  
Current Density ◽  
Rational Design ◽  
High Current Density ◽  
High Current

scholarly journals Recent Advances in Design of Electrocatalysts for High‐Current‐Density Water Splitting

2021 ◽  
pp. 2108133
Author(s):  
Yuting Luo ◽  
Zhiyuan Zhang ◽  
Manish Chhowalla ◽  
Bilu Liu
Keyword(s):  
Water Splitting ◽  
Current Density ◽  
High Current Density ◽  
High Current ◽  
Recent Advances
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