Single‐Atom Co‐Decorated MoS 2 Nanosheets Assembled on Metal Nitride Nanorod Arrays as an Efficient Bifunctional Electrocatalyst for pH‐Universal Water Splitting

2021 ◽  
pp. 2100233
Author(s):  
Thi Luu Luyen Doan ◽  
Dinh Chuong Nguyen ◽  
Sampath Prabhakaran ◽  
Do Hwan Kim ◽  
Duy Thanh Tran ◽  
...  
Keyword(s):  
Water Splitting ◽  
Single Atom ◽  
Nanorod Arrays ◽  
Metal Nitride ◽  
Bifunctional Electrocatalyst

Single-Atom and Bimetallic Nanoalloy Supported on Nanotubes as a Bifunctional Electrocatalyst for Ultrahigh-Current-Density Overall Water Splitting

ACS Catalysis ◽  
2022 ◽  
pp. 1167-1179
Author(s):  
Wenhui Luo ◽  
Yang Wang ◽  
Liuxiong Luo ◽  
Shen Gong ◽  
Mengni Wei ◽  
...  
Keyword(s):  
Water Splitting ◽  
Current Density ◽  
Single Atom ◽  
Bifunctional Electrocatalyst ◽  
Overall Water Splitting

scholarly journals Unlocking the Potential of Single Atoms Loaded Geobacter Hybrid Catalyst as Bifunctional Electrocatalyst for Water Splitting

2020 ◽  
Author(s):  
Srikanth Pedireddy ◽  
Mahesh Kumar Ravva ◽  
Chandrani Nayak ◽  
Dalaver Anjum ◽  
Shambhu Nath Jha ◽  
...  
Keyword(s):  
Water Splitting ◽  
Density Functional ◽  
Synthesis Method ◽  
Single Step ◽  
Geobacter Sulfurreducens ◽  
Single Atom ◽  
Extracellular Electron Transfer ◽  
High Dispersion ◽  
Bifunctional Electrocatalyst ◽  
Iro2 Catalyst

Single-atom metal (SA-M) catalysts with high dispersion of active metal sites allow maximum atomic utilization. However, conventional synthesis of SA-M catalysts involves high-temperature treatments, leading to a low yield with random distribution of atoms. Herein, a facile method to synthesize SA-M catalysts (M = Fe, Ir, Pt, Ru, Cu, or Pd) in a single step at ambient temperature, using the extracellular electron transfer capability of Geobacter sulfurreducens (GS), is presented. Interestingly, the SA-M is coordinated to three nitrogen (N) atoms adopting an MN3 on the surface of GS. Dry samples of SA-Ir@GS without further heat treatments show exceptionally high activity for OER when compared to benchmark IrO2 catalyst and comparable HER activity to commercial 10 wt.% Pt/C. The SA-Ir@GS electrocatalyst exhibits the best water‐splitting performance compared to other SA-M@GS, showing a low applied potential of 1.65 V to achieve 10 mA cm−2 in 1.0 M KOH solution with cycling over 5 h. The density functional calculations reveal that the large adsorption energy of H2O and moderate adsorption energies of reactants and reaction intermediates for SA-Ir@GS favorably improve its activity. This nature-based facile synthesis method of SA-M at room temperature provides a versatile platform for the preparation of other transition metal SA-M catalysts for various energy-related applications by merely altering the metal precursors. <br>

scholarly journals Unlocking the Potential of Single Atoms Loaded Geobacter Hybrid Catalyst as Bifunctional Electrocatalyst for Water Splitting

2020 ◽  
Author(s):  
Srikanth Pedireddy ◽  
Mahesh Kumar Ravva ◽  
Chandrani Nayak ◽  
Dalaver Anjum ◽  
Shambhu Nath Jha ◽  
...  
Keyword(s):  
Water Splitting ◽  
Density Functional ◽  
Synthesis Method ◽  
Single Step ◽  
Geobacter Sulfurreducens ◽  
Single Atom ◽  
Extracellular Electron Transfer ◽  
High Dispersion ◽  
Bifunctional Electrocatalyst ◽  
Iro2 Catalyst

Single-atom metal (SA-M) catalysts with high dispersion of active metal sites allow maximum atomic utilization. However, conventional synthesis of SA-M catalysts involves high-temperature treatments, leading to a low yield with random distribution of atoms. Herein, a facile method to synthesize SA-M catalysts (M = Fe, Ir, Pt, Ru, Cu, or Pd) in a single step at ambient temperature, using the extracellular electron transfer capability of Geobacter sulfurreducens (GS), is presented. Interestingly, the SA-M is coordinated to three nitrogen (N) atoms adopting an MN3 on the surface of GS. Dry samples of SA-Ir@GS without further heat treatments show exceptionally high activity for OER when compared to benchmark IrO2 catalyst and comparable HER activity to commercial 10 wt.% Pt/C. The SA-Ir@GS electrocatalyst exhibits the best water‐splitting performance compared to other SA-M@GS, showing a low applied potential of 1.65 V to achieve 10 mA cm−2 in 1.0 M KOH solution with cycling over 5 h. The density functional calculations reveal that the large adsorption energy of H2O and moderate adsorption energies of reactants and reaction intermediates for SA-Ir@GS favorably improve its activity. This nature-based facile synthesis method of SA-M at room temperature provides a versatile platform for the preparation of other transition metal SA-M catalysts for various energy-related applications by merely altering the metal precursors. <br>

Computational screening of transition-metal single atom doped C9N4 monolayers as efficient electrocatalysts for water splitting

Nanoscale ◽  
2019 ◽  
Vol 11 (39) ◽  
pp. 18169-18175 ◽  
Author(s):  
Yanan Zhou ◽  
Guoping Gao ◽  
Jun Kang ◽  
Wei Chu ◽  
Lin-Wang Wang
Keyword(s):  
Free Energy ◽  
Transition Metal ◽  
Water Splitting ◽  
Gibbs Free Energy ◽  
Active Sites ◽  
Hydrogen Adsorption ◽  
Single Atom ◽  
Bifunctional Electrocatalyst ◽  
Computational Screening ◽  
Catalytic Active Sites

Ni@C9N4 performs as a promising bifunctional electrocatalyst with N and Ni atoms as the catalytic active sites for HER and OER, with calculated hydrogen adsorption Gibbs free energy (ΔGH*) of −0.04 eV and OER overpotential (ηOER) of 0.31 V.

NiCoP nanorod arrays as high-performance bifunctional electrocatalyst for overall water splitting at high current densities

2021 ◽  
Vol 484 ◽  
pp. 229269
Author(s):  
Hua-Shuai Hu ◽  
Yang Li ◽  
Ya-Ru Shao ◽  
Ke-Xin Li ◽  
Gao Deng ◽  
...  
Keyword(s):  
Water Splitting ◽  
High Performance ◽  
Nanorod Arrays ◽  
High Current ◽  
Bifunctional Electrocatalyst ◽  
Overall Water Splitting ◽  
Current Densities

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.

Photoelectrochemical water splitting using TiO2 nanorod arrays coated with Zn-doped CdS

2021 ◽  
Vol 56 (18) ◽  
pp. 11059-11070
Author(s):  
Xichen Yu ◽  
Qingqing Xing ◽  
Xiaoping Zhang ◽  
Hanlin Jiang ◽  
Fengren Cao
Keyword(s):  
Water Splitting ◽  
Photoelectrochemical Water Splitting ◽  
Nanorod Arrays ◽  
Tio2 Nanorod ◽  
Tio2 Nanorod Arrays

Mesoporous LiTiPO4F Nanoparticles: A New Stable and High performance Bifunctional Electrocatalyst for Electrochemical Water Splitting

2021 ◽  
pp. 101188
Author(s):  
Srinivasa N ◽  
Rangaswamy P ◽  
Yogeeshwari RT ◽  
Manjunatha C ◽  
Ashoka S
Keyword(s):  
Water Splitting ◽  
High Performance ◽  
Bifunctional Electrocatalyst ◽  
Electrochemical Water Splitting

Ni-Fe-Co based mixed metal/metal-oxides nanoparticles encapsulated in ultrathin carbon nanosheets: A bifunctional electrocatalyst for overall water splitting

2021 ◽  
pp. 101361
Author(s):  
Waleed Yaseen ◽  
Nabi Ullah ◽  
Meng Xie ◽  
Bashir Adegbemiga Yusuf ◽  
Yuanguo Xu ◽  
...  
Keyword(s):  
Metal Oxides ◽  
Water Splitting ◽  
Carbon Nanosheets ◽  
Mixed Metal ◽  
Bifunctional Electrocatalyst ◽  
Overall Water Splitting ◽  
Metal Metal

NiFeP nanosheets on N-doped carbon sponge as a hierarchically structured bifunctional electrocatalyst for efficient overall water splitting

2021 ◽  
Vol 549 ◽  
pp. 149297
Author(s):  
Jincheng Hei ◽  
Guancheng Xu ◽  
Bei Wei ◽  
Li Zhang ◽  
Hui Ding ◽  
...  
Keyword(s):  
Water Splitting ◽  
Bifunctional Electrocatalyst ◽  
Overall Water Splitting
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