Developing next-generation supercapacitor electrodes by coordination chemistry-based advanced functional carbon nanostructures: Progress, Current challenges and prospects DOI

Khan Abdul Sammed,

Amjad Farid,

Sumayya Mustafa

et al.

Fuel Processing Technology, Journal Year: 2023, Volume and Issue: 250, P. 107896 - 107896

Published: June 22, 2023

Language: Английский

Potential Dominates Structural Recombination of Single Atom Mn Sites for Promoting Oxygen Reduction Reaction DOI

Miaomiao Tong,

Fanfei Sun,

Gengyu Xing

et al.

Angewandte Chemie International Edition, Journal Year: 2023, Volume and Issue: 62(52)

Published: Nov. 13, 2023

Single atom sites (SAS) often undergo structural recombination in oxygen reduction reaction (ORR), while the effect of valence state and reconstruction on active centers needs to be investigated thoroughly. Herein, Mn-SAS catalyst with uniform precise Mn-N4 configuration is rationally designed. We utilize operando synchrotron radiation track dynamic evolution during ORR. Under applied potential, into Mn-N3 C further Mn-N2 C2 configurations clarified. Simultaneously, states Mn are increased from +3.0 +3.8 then decreased +3.2. When potential removed, returned its initial Mn+3.0 -N4 configuration. Such successive evolutions optimize electronic geometric structures as evidenced by theory calculations. The evolved Mn+3.8 -N3 Mn+3.2 -N2 respectively adjust O2 adsorption reduce energy barrier rate-determining step. Thus, it can achieve an onset 0.99 V, superior stability over 10,000 cycles, a high turnover frequency 1.59 s-1 at 0.85 VRHE. Our present work provides new insights construction well-defined SAS catalysts regulating centers.

Language: Английский

Citations

57
Composition-adjustable Mo6Co6C2/Co@carbon nanocage for enhanced oxygen reduction and evolution reactions DOI
Fangfang Fan,

Yanxing Hui,

Rajkumar Devasenathipathy

et al.

Journal of Colloid and Interface Science, Journal Year: 2023, Volume and Issue: 636, P. 450 - 458

Published: Jan. 10, 2023

Language: Английский

Citations

54
Engineering of the crystalline state towards a defective state of CeCoO 3 perovskite for the OER process in alkaline medium DOI Creative Commons
Asma M. Alenad, Naseeb Ahmad,

Salma Aman

et al.

Journal of Taibah University for Science, Journal Year: 2023, Volume and Issue: 17(1)

Published: July 12, 2023

Perovskite oxides act as an efficient electrocatalyst, but their limited active surface area has made it challenging to enhance electrocatalytic activity. Thus, researchers found that changing the crystalline amorphous having oxygen vacancy can create enriched zone. In this research, we adopt a top-down approach for amorphization of CeCoO3 nanostructure creates crystal defects, producing materials with higher specific area, potential electrocatalysis evolution reaction (OER) and greater stability. The calculated overpotential (η) Tafel slope defective CoCO3 (D-CCO3) is 265 35.95 mV dec−1 very low compared (C-CCO3, 384 76.11 dec−1). electrochemical analysis also suggests (D-CCO) exhibited 33.96 mF ECSA 849 cm2. current research enables valuable improving material properties efficiency nanoscale perovskite oxide electrocatalysts attributed defects nitrogen doping. However, further modifications D-CCO structure in near future may be employed address other environmental challenges.

Language: Английский

Citations

46
Strategies and applications of electrocatalytic nitrate reduction towards ammonia DOI
Huijie Zhang,

K. Fang,

Jian Yang

et al.

Coordination Chemistry Reviews, Journal Year: 2024, Volume and Issue: 506, P. 215723 - 215723

Published: Feb. 26, 2024

Language: Английский

Citations

42
An overview of silicon-air batteries: Principle, current state and future perspectives DOI
Sujuan Hu, Ziyu Wang, Junjie Wang

et al.

Coordination Chemistry Reviews, Journal Year: 2024, Volume and Issue: 517, P. 216045 - 216045

Published: July 1, 2024

Language: Английский

Citations

41
Understanding Advanced Transition Metal‐Based Two Electron Oxygen Reduction Electrocatalysts from the Perspective of Phase Engineering DOI Creative Commons
Hongyuan Yang, Na An, Zhenhui Kang

et al.

Advanced Materials, Journal Year: 2024, Volume and Issue: 36(25)

Published: March 8, 2024

Abstract Non‐noble transition metal (TM)‐based compounds have recently become a focal point of extensive research interest as electrocatalysts for the two electron oxygen reduction (2e − ORR) process. To efficiently drive this reaction, these TM‐based must bear unique physiochemical properties, which are strongly dependent on their phase structures. Consequently, adopting engineering strategies toward structure has emerged cutting‐edge scientific pursuit, crucial achieving high activity, selectivity, and stability in electrocatalytic This comprehensive review addresses intricate field applied to non‐noble 2e ORR. First, connotation fundamental concepts related kinetics thermodynamics succinctly elucidated. Subsequently, focus shifts detailed discussion various approaches, including elemental doping, defect creation, heterostructure construction, coordination tuning, crystalline design, polymorphic transformation boost or revive ORR performance (selectivity, stability) catalysts, accompanied by an insightful exploration phase‐performance correlation. Finally, proposes fresh perspectives current challenges opportunities burgeoning field, together with several critical directions future development electrocatalysts.

Language: Английский

Citations

31
Advancing the Development of Hollow Micro/nanostructured Materials for Electrocatalytic Water Splitting: Current State, Challenges, and Perspectives DOI
Muhammad Asim Mushtaq, Muhammad Ahmad, Attia Shaheen

et al.

ACS Materials Letters, Journal Year: 2024, Volume and Issue: 6(7), P. 3090 - 3111

Published: June 20, 2024

Electrocatalytic water splitting is commonly regarded as a sustainable and clean method to generate hydrogen oxygen, which deemed be efficient for the utilization of renewable energy. Electrocatalysts are essential components enhance electrochemical efficiency optimize product yield. Hollow micro/nanostructures possess large specific surface areas, multiple voids, tunable chemical compositions, making them suitable use direct catalysts or supports reactions. This review summarizes recent advancements in structural functional designs micro/nanostructured hollow materials electrocatalysts an enhanced water-splitting process. We emphasize ideas strategies create various oxygen/hydrogen evolution processes. Subsequently, comprehensive summary studies on borides, carbides, oxides, phosphides, selenides, sulfides, alloys, MXenes, heterostructured containing hosts provided. Furthermore, we highlight current challenges perspectives electrocatalytic splitting.

Language: Английский

Citations

16
Cobalt coordinated two-dimensional covalent organic framework a sustainable and robust electrocatalyst for selective CO2 electrochemical conversion to formic acid DOI
Sajjad Ali, Rashid Iqbal, Fazli Wahid

et al.

Fuel Processing Technology, Journal Year: 2022, Volume and Issue: 237, P. 107451 - 107451

Published: Aug. 13, 2022

Language: Английский

Citations

46
Modulating coordination structures and metal environments of MOFs-Engineered electrocatalysts for water electrolysis DOI
Huijuan Wu, Weiqiong Zheng, Ran Zhu

et al.

Chemical Engineering Journal, Journal Year: 2022, Volume and Issue: 452, P. 139475 - 139475

Published: Sept. 29, 2022

Language: Английский

Citations

46
Benchmarking the two-dimensional conductive Y3(C6X6)2 (Y = Co, Cu, Pd, Pt; X = NH, NHS, S) metal-organic framework nanosheets for CO2 reduction reaction with tunable performance DOI
Sajjad Ali, Pir Muhammad Ismail, Fazli Wahid

et al.

Fuel Processing Technology, Journal Year: 2022, Volume and Issue: 236, P. 107427 - 107427

Published: July 30, 2022

Language: Английский

Citations

40