Selenium‐Based Catalysts for Efficient Electrocatalysis DOI

Yuanhao Wei,

Mingtao Huang,

Yonggan Wu

et al.

Advanced Functional Materials, Journal Year: 2024, Volume and Issue: unknown

Published: April 1, 2024

Abstract Electrocatalytic technology is essential to develop environmentally friendly energy technologies and reduce dependence on non‐renewable resources. The construction of highly efficient, inexpensive, robust electrocatalysts the primary prerequisite large‐scale application electrochemical devices. In recent years, selenium‐based catalysts (SBCs) have been extensively investigated emerged as a promising candidate for electrocatalysis given their potential or replace dosage noble metals ability catalyze range critical processes. This Review minutely analyses research advances in SBCs, highlighting significant role Se enhancing catalytic performance. First, it starts from concepts related followed by classification SBCs well strategies regulate activity are elaborated. Then, techniques characterizing systematically summed up, mainly focusing morphological structural characterization methods. Next, applications various energy‐conversion reactions (e.g., hydrogen evolution reaction, oxygen reduction nitrogen CO 2 reaction) discussed, aiming at elucidating association between structure–activity correlations. Finally, challenges future development trends presented.

Language: Английский

Metastabilizing the Ruthenium Clusters by Interfacial Oxygen Vacancies for Boosted Water Splitting Electrocatalysis DOI
Ya Chen, Yaoda Liu, Wenfang Zhai

et al.

Advanced Energy Materials, Journal Year: 2024, Volume and Issue: 14(21)

Published: Feb. 2, 2024

Abstract Metal–support interaction (MSI) is witnessed as an essential manner to stabilize active metals and tune catalytic activity for heterogonous water splitting. Kinetically driving the electrolysis (WE) appeals a rational MSI system with coupled electron‐donating/accepting (e‐D/A) characters hydrogen/oxygen evolution reactions (HER/OER). However, metal stabilization effect by will in turn restrict deblocking of e‐D/A properties challenge full electrocatalytic optimization. This study profiles heterostructure featuring metastable Ru clusters on defective NiFe hydroxide (Ru/d‐NiFe LDH) support low‐precious (≈2 wt%) platform efficient WE. It indicated that interfacial oxygen vacancies can deviate stable 4d 5 orbit 2+δ state, regulate d‐band center levels toward facilitated HER/OER processes. Resultantly, Ru/d‐NiFe LDH attains ultralow overpotentials at 10 mA cm −2 Pt‐beyond alkaline HER (18 mV) OER (220 fast kinetics durability. The symmetrical electrolyzer delivers promising voltage 1.49 V 1 m KOH seawater splitting performance. work carries interesting opportunities rationalizing sophisticated metal‐support electrocatalysts through metal‐site metastabilization engineering.

Language: Английский

Citations

90
Designing 3d Transition Metal Cation-Doped MRuOx As Durable Acidic Oxygen Evolution Electrocatalysts for PEM Water Electrolyzers DOI
Panpan Sun, Zelong Qiao,

Xiaobin Dong

et al.

Journal of the American Chemical Society, Journal Year: 2024, Volume and Issue: 146(22), P. 15515 - 15524

Published: May 24, 2024

The continuous dissolution and oxidation of active sites in Ru-based electrocatalysts have greatly hindered their practical application proton exchange membrane water electrolyzers (PEMWE). In this work, we first used density functional theory (DFT) to calculate the energy Ru 3d transition metal-doped MRuOx (M = Sc, Ti, V, Cr, Mn, Fe, Co, Ni, Cu, Zn) evaluate stability for acidic oxygen evolution reaction (OER) screen out ZnRuOx as best candidate. To confirm theoretical predictions, experimentally synthesized these materials found that indeed displays robust OER with a negligible decay η10 after 15 000 CV cycles. Of importance, using anode, PEMWE can run stably 120 h at 200 mA cm–2. We also further uncover mechanism ZnRuOx, i.e., Zn atoms doped outside nanocrystal would form "Zn-rich" shell, which effectively shortened average Ru–O bond lengths strengthen interaction therefore boosted intrinsic OER. short, work not only provides new study paradigm DFT calculations guide experimental synthesis but offers proof-of-concept metal dopants RuO2 stabilizer universal principle develop high-durability catalysts PEMWE.

Language: Английский

Citations

60
Robust Ru‐VO2 Bifunctional Catalysts for All‐pH Overall Water Splitting DOI Open Access

Ziqiang Niu,

Z.W. Lu,

Zelong Qiao

et al.

Advanced Materials, Journal Year: 2023, Volume and Issue: 36(9)

Published: Dec. 4, 2023

Designing robust bifunctional catalysts for oxygen evolution reaction (OER) and hydrogen in all-pH conditions overall water splitting (OWS) is an effective way to achieve sustainable development. Herein, a composite Ru-VO

Language: Английский

Citations

52
Low Rh doping accelerated HER/OER bifunctional catalytic activities of nanoflower-like Ni-Co sulfide for greatly boosting overall water splitting DOI

Jia-Chun Gan,

Zuo-Feng Jiang,

Keming Fang

et al.

Journal of Colloid and Interface Science, Journal Year: 2024, Volume and Issue: 677, P. 221 - 231

Published: Aug. 9, 2024

Language: Английский

Citations

42
Constructing CoNi-LDH/Fe MOF/NF Heterostructure Catalyst for Energy-Efficient OER and UOR at High Current Density DOI

Qing-Nan Bian,

Ben-Shuai Guo, Dongxing Tan

et al.

ACS Applied Materials & Interfaces, Journal Year: 2024, Volume and Issue: 16(12), P. 14742 - 14749

Published: March 14, 2024

The sluggish kinetics of the oxygen evolution reaction (OER) always results in a high overpotential at anode water electrolysis and an excessive electric energy consumption, which has been major obstacle for hydrogen production through electrolysis. In this study, we present CoNi-LDH/Fe MOF/NF heterostructure catalyst with nanoneedle array morphology OER. 1.0 M KOH solution, only required overpotentials 275 305 mV to achieve current densities 500 1000 mA/cm2 OER, respectively. catalytic activities are much higher than those reference single-component CoNi-LDH/NF Fe catalysts. improved performance can be ascribed synergistic effect CoNi-LDH MOF. particular, when anodic OER is replaced urea oxidation (UOR), relatively lower thermodynamic equilibrium potential expected reduce cell voltage, same reduced by 80 40 mV, voltage drive overall splitting (OUS) 1.55 V 100 Pt/C/NF||CoNi-LDH/Fe two-electrode electrolytic cell. This value 60 compared that (OWS). Our indicate reasonable construction significantly give rise electrocatalytic performance, using UOR replace OWS greatly consumption.

Language: Английский

Citations

35
Heterostructured electrocatalysts for the oxygen evolution reaction DOI

Shao-Lan Zheng,

Huimin Xu, Hongrui Zhu

et al.

Journal of Materials Chemistry A, Journal Year: 2024, Volume and Issue: 12(30), P. 18832 - 18865

Published: Jan. 1, 2024

This review focuses mainly on the overall facilitating effect of heterostructures OER process. The fabrication heterostructured electrocatalysts and relationship between their structures electrocatalytic properties are discussed.

Language: Английский

Citations

24
Iron, Tungsten Dual‐Doped Nickel Sulfide as Efficient Bifunctional Catalyst for Overall Water Splitting DOI

Sangni Wang,

Ding Yuan, Sihan Sun

et al.

Small, Journal Year: 2024, Volume and Issue: unknown

Published: May 25, 2024

Developing low-cost and highly efficient bifunctional catalysts for both the oxygen evolution reaction (OER) hydrogen (HER) is a challenging problem in electrochemical overall water splitting. Here, iron, tungsten dual-doped nickel sulfide catalyst (Fe/W-Ni

Language: Английский

Citations

23
The dual gain strategy of introducing nickel doping and anchoring amorphous iron oxyhydroxide nanosheets on ZIF-67 achieves an efficient oxygen evolution reaction DOI
Shuo Liu, Yufan Zhang,

Lin Hao

et al.

Separation and Purification Technology, Journal Year: 2024, Volume and Issue: 354, P. 129501 - 129501

Published: Sept. 3, 2024

Language: Английский

Citations

23
Room‐Temperature, Meter‐Scale Synthesis of Heazlewoodite‐Based Nanoarray Electrodes for Alkaline Water Electrolysis DOI
Xinyu Bai, Mingcheng Zhang, Yucheng Shen

et al.

Advanced Functional Materials, Journal Year: 2024, Volume and Issue: 34(34)

Published: March 12, 2024

Abstract Alkaline water electrolysis is among the most promising technologies to massively produce green hydrogen. Developing highly‐active and durable electrodes catalyze oxygen evolution reaction (OER) hydrogen (HER) of primary importance. Here a facile, room‐temperature synthetic route presented access heazlewoodite phase (Ni, Fe) 3 S 2 nanosheet arrays supported on NiFe foam (NFF), whose production can be easily scaled up meter size per batch operation. The /NFF electrode serve as high‐performance electrocatalyst for both HER OER in alkaline media, remains highly stable over 1000 h at 100 mA cm −2 current densities. When working electrocatalyst, confirmed catalytic that provides high density efficient active sites (e.g., Ni─Ni Ni─Fe bridge sites). During electrochemical testing, nanosheets totally transform into γ ‐(Fe, Ni)OOH OER. As consequence, used integrate an electrolyzer cathode anode, give excellent performance (600 @1.93 V), which better than based commercial Raney Ni electrodes.

Language: Английский

Citations

22
Unveiling the Role of Surface Self‐Reconstruction of Metal Chalcogenides on Electrocatalytic Oxygen Evolution Reaction DOI

Weiwei Bao,

Jiangying Liu, Taotao Ai

et al.

Advanced Functional Materials, Journal Year: 2024, Volume and Issue: unknown

Published: Sept. 10, 2024

Abstract Transition metal chalcogenides are an important class of electrocatalysts with broad application prospects in alkaline oxygen evolution reactions. Many researchers focusing on the situ conversion cations catalysts, but have rarely considered contribution oxidation, leaching, and re‐absorption to catalytic activity. Herein, multiple characterization approaches used monitor mechanism origin CoTe@CoS‐electrocatalyzed reaction (OER) The research results reveal that electro‐oxidative dissolution Te S electrode surface forms TeO 3 2− SO , which adsorbed surface. Moreover, species will further transform into 4 . As expected, extra addition mixed tellurite sulfate ions Co (OH) 2 electrolyte produces a synergistic effect can significantly boost OER Selenites analogous effect, indicating adsorption chalcogenates has universal improving performance. findings this work provide unique insights materials enhancing activity during processes.

Language: Английский

Citations

22