A superior dye adsorbent towards the hydrogen evolution reaction combining active sites and phase-engineering of (1T/2H) MoS2/α-MoO3 hybrid heterostructured nanoflowers

2018 ◽  
Vol 6 (31) ◽  
pp. 15320-15329 ◽  
Author(s):  
Arumugam Manikandan ◽  
P. Robert Ilango ◽  
Chia-Wei Chen ◽  
Yi-Chung Wang ◽  
Yu-Chuan Shih ◽  
...  
Keyword(s):  
Low Temperature ◽  
Hydrothermal Method ◽  
Hydrogen Evolution ◽  
Hydrogen Evolution Reaction ◽  
Active Sites ◽  
One Step ◽  
Phase Engineering

Here, we demonstrate the successful synthesis of (1T/2H) MoS2/α-MoO3 heterostructured nanoflowers at a low temperature of 200 °C by a one-step hydrothermal method.

scholarly journals One-step hydrothermal synthesis of NiS/MoS2-rGO composites and their application as catalysts for hydrogen evolution reaction

2016 ◽  
Vol 09 (05) ◽  
pp. 1650058 ◽  
Author(s):  
Huaping Wu ◽  
Ye Qiu ◽  
Junma Zhang ◽  
Guozhong Chai ◽  
Congda Lu ◽  
...  
Keyword(s):  
Graphene Oxide ◽  
Hydrothermal Synthesis ◽  
Hydrothermal Method ◽  
Reduced Graphene Oxide ◽  
Hydrogen Evolution ◽  
Hydrogen Evolution Reaction ◽  
Active Sites ◽  
Layer Structures ◽  
Reduced Graphene ◽  
One Step

The composites of sulphide and reduced graphene oxide (NiS/MoS2-rGO) were synthesized through a facile solvent-assisted hydrothermal method. The introduction of NiS was paramount not only in enhancing the conductivity of whole catalysts but also in modulating the layer structures of MoS2 with additional active sites. Moreover, the NiS and rGO functioned together in controlling the morphology of as-prepared composites, resulting in uniformly distributed NiS/MoS2 nanosheets perpendicular to rGO scaffold. This further contributed to the excellent hydrogen evolution performance of the composites with a small onset overpotential of 80[Formula: see text]mV and Tafel slope as low as 65[Formula: see text]mV/decade.

Bimetallic ZnCo nanorod array for highly reactive and durable hydrogen evolution reaction

2022 ◽  
Author(s):  
Jianmin Zhu ◽  
Lishuang Xu ◽  
Shuai Zhang ◽  
Ying Yang ◽  
Licheng Huang ◽  
...  
Keyword(s):  
Hydrothermal Method ◽  
Hydrogen Evolution ◽  
Hydrogen Evolution Reaction ◽  
Nickel Foam ◽  
Nanorod Array ◽  
One Step ◽  
Array Structure

One-step hydrothermal method to synthesize a stable ZnCo2(OH)F nanorod array structure supported by nickel foam.

One-step synthesis of cubic pyrite-type CoSe2 at low temperature for efficient hydrogen evolution reaction

RSC Advances ◽  
2014 ◽  
Vol 4 (97) ◽  
pp. 54344-54348 ◽  
Author(s):  
Hongxiu Zhang ◽  
Lecheng Lei ◽  
Xingwang Zhang
Keyword(s):  
Low Temperature ◽  
Hydrogen Evolution ◽  
Hydrogen Evolution Reaction ◽  
Tafel Slope ◽  
One Step

We report one-step synthesis of a cubic pyrite-type CoSe2 electrocatalyst toward the hydrogen evolution reaction, exhibiting a Tafel slope of ∼40 mV per decade.

Flower-like 1T-MoS2/NiCo2S4 on a carbon cloth substrate as an efficient electrocatalyst for the hydrogen evolution reaction

2021 ◽  
Vol 50 (38) ◽  
pp. 13320-13328
Author(s):  
Meng Zheng ◽  
Qianqiao Chen ◽  
Qin Zhong
Keyword(s):  
Hydrothermal Method ◽  
Hydrogen Evolution ◽  
Hydrogen Evolution Reaction ◽  
Active Sites ◽  
Carbon Cloth ◽  
Electron Conduction

The 1T-MoS2/NiCo2S4/CC composite prepared by a hydrothermal method greatly increases the electron conduction rate and the number of active sites.

Facile and one-step synthesis of a free-standing 3D MoS2–rGO/Mo binder-free electrode for efficient hydrogen evolution reaction

2017 ◽  
Vol 5 (34) ◽  
pp. 18081-18087 ◽  
Author(s):  
Barun Kumar Barman ◽  
Debanjan Das ◽  
Karuna Kar Nanda
Keyword(s):  
Hydrothermal Method ◽  
Hydrogen Evolution ◽  
Hydrogen Evolution Reaction ◽  
Free Standing ◽  
One Step ◽  
Binder Free

Free-standing 3D MoS2/Mo and MoS2–rGO/Mo electrodes were prepared via a facile, one-step hydrothermal method for enhanced hydrogen evolution reaction (HER) performance.

Hierarchically porous FeNi3@FeNi layered double hydroxide nanostructures: One-step fast electrodeposition and highly efficient electrocatalytic performances for overall water splitting

2021 ◽  
Author(s):  
Zihao Liu ◽  
Shifeng Li ◽  
Fangfang Wang ◽  
Mingxia Li ◽  
Yonghong Ni
Keyword(s):  
Hydrogen Evolution ◽  
Water Splitting ◽  
Oxygen Evolution ◽  
Layered Double Hydroxide ◽  
Hydrogen Evolution Reaction ◽  
Oxygen Evolution Reaction ◽  
Electrocatalytic Activity ◽  
Hierarchically Porous ◽  
One Step ◽  
Double Hydroxide

FeNi-layered double hydroxide (LDH) is thought to be an excellent electrocatalyst for oxygen evolution reaction (OER), but it always shows extremely poor electrocatalytic activity toward hydrogen evolution reaction (HER) in...

scholarly journals Defect-Rich Heterogeneous MoS2/rGO/NiS Nanocomposite for Efficient pH-Universal Hydrogen Evolution

Nanomaterials ◽  
2021 ◽  
Vol 11 (3) ◽  
pp. 662 ◽  
Author(s):  
Guangsheng Liu ◽  
Kunyapat Thummavichai ◽  
Xuefeng Lv ◽  
Wenting Chen ◽  
Tingjun Lin ◽  
...  
Keyword(s):  
Graphene Oxide ◽  
Hydrogen Evolution ◽  
Hydrogen Evolution Reaction ◽  
Active Sites ◽  
Reduced Graphene ◽  
Heterogeneous Interfaces ◽  
Wide Ph Range ◽  
Ph Range ◽  
A Current ◽  
Poor Stability

Molybdenum disulfide (MoS2) has been universally demonstrated to be an effective electrocatalytic catalyst for hydrogen evolution reaction (HER). However, the low conductivity, few active sites and poor stability of MoS2-based electrocatalysts hinder its hydrogen evolution performance in a wide pH range. The introduction of other metal phases and carbon materials can create rich interfaces and defects to enhance the activity and stability of the catalyst. Herein, a new defect-rich heterogeneous ternary nanocomposite consisted of MoS2, NiS and reduced graphene oxide (rGO) are synthesized using ultrathin αNi(OH)2 nanowires as the nickel source. The MoS2/rGO/NiS-5 of optimal formulation in 0.5 M H2SO4, 1.0 M KOH and 1.0 M PBS only requires 152, 169 and 209 mV of overpotential to achieve a current density of 10 mA cm−2 (denoted as η10), respectively. The excellent HER performance of the MoS2/rGO/NiS-5 electrocatalyst can be ascribed to the synergistic effect of abundant heterogeneous interfaces in MoS2/rGO/NiS, expanded interlayer spacings, and the addition of high conductivity graphene oxide. The method reported here can provide a new idea for catalyst with Ni-Mo heterojunction, pH-universal and inexpensive hydrogen evolution reaction electrocatalyst.

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