Advances in Novel Supported Pt‐Based Catalysts for Methanol Electrolysis

Advanced Sustainable Systems, Journal Year: 2025, Volume and Issue: unknown

Published: Feb. 23, 2025

Abstract Methanol electrolysis, coupling thermodynamically favorable methanol oxidation reaction (MOR) and hydrogen evolution (HER), is a promising strategy for energy‐saving generation as compared with traditional water splitting. Pt‐based catalysts are the best choice while intrinsic activity utilization of Pt should be increased due to its high cost. Supporting engineering effective in boosting catalytic effectiveness, some novel supports diverse support effects developed accelerate kinetics improve efficiency. Herein, comprehensive review recent advances electrocatalysts methanol‐assisted production provided. The mechanism electrolysis anode MOR cathode HER first outlined, respectively. Then, performance enhancement effects, including anchoring, electronic, synergistic, strain briefly discussed. Subsequently, clarified by supports, metal oxides, phosphides, selenides, tellurides, presented, promotion effect relevant challenges future perspectives concluded last section, where most attention paid metal‐supporting their understanding study.

Language: Английский

---

Enhanced pH-universal hydrogen evolution reactions on the Rh/MoO3 electrocatalysts

Chemical Engineering Journal, Journal Year: 2025, Volume and Issue: unknown, P. 163260 - 163260

Published: April 1, 2025

Language: Английский

---

Recent Progress in the Design and Application of Strong Metal–Support Interactions in Electrocatalysis

Inorganic Chemistry, Journal Year: 2025, Volume and Issue: unknown

Published: March 4, 2025

The strong metal-support interaction (SMSI) in supported metal catalysts represents a crucial factor the design of highly efficient heterogeneous catalysts. This can modify surface adsorption state, electronic structure, and coordination environment metal, altering interface structure catalyst. These changes serve to enhance catalyst's activity, stability, reaction selectivity. In recent years, multitude researchers have uncovered range novel SMSI types induction methods including oxidized (O-SMSI), adsorbent-mediated (A-SMSI), wet chemically induced (Wc-SMSI). Consequently, systematic critical review is desirable illuminate latest advancements deliberate its application within article provides characteristics various most methods. It concluded that significantly contributes enhancing catalyst selectivity, increasing catalytic activity. Furthermore, this paper offers comprehensive extensive electrocatalysis hydrogen evolution (HER), oxygen (OER), reduction (ORR), carbon dioxide (CO2RR). Finally, opportunities challenges faces future are discussed.

Language: Английский

---

Synergistic Alkaline Hydrogen Evolution Catalysis over MoC Triggered by Doping Single Ru Atoms

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

Published: Oct. 23, 2024

Abstract The rational design of single atom‐based catalysts and precise elucidation the synergistic interaction between metal site substrate are pivotal to identifying real active sites explicating catalytic mechanisms at atomic scale, thus contributing development high‐performance for diverse industrial implementations. Herein, a Ru single‐atom doping strategy is developed activate MoC with superior hydrogen evolution reaction (HER) activity in an alkaline medium. atomically dispersed elaborately doped into nanoparticles loaded on 3D N‐doped carbon nanoflowers (Ru‐SAs@MoC/NCFs hereafter). experimental results theoretical calculations manifest that isolated dopants can effectively trigger Mo thermodynamically favorable water adsorption/dissociation energies facilitate OH − desorption H adsorption N sites, synergistically expediating overall HER kinetics. As such, well‐designed Ru‐SAs@MoC/NCFs demonstrate extraordinary low overpotential 16 mV 10 mA cm −2 1.0 m KOH electrolyte, outperforming Pt/C benchmark vast molybdenum/ruthenium‐based reported date. These findings disclose mechanistic induced by modulation suggest principle high‐efficiency electrocatalysts via atomic‐level manipulation leverage.

Language: Английский

---

Highly dispersed ultrafine Ru nanoparticles on a honeycomb-like N-doped carbon matrix with modified rectifying contact for enhanced electrochemical hydrogen evolution

Nanoscale, Journal Year: 2024, Volume and Issue: 16(37), P. 17519 - 17526

Published: Jan. 1, 2024

The manipulation of rectifying contact between metal and semiconductor represents a powerful strategy to modify the electronic configuration active sites for improved electrocatalytic performance. Herein, we present an NaCl template-assisted approach rationally construct Schottky electrocatalyst consisting honeycomb-like N-doped carbon matrix decorated with uniformly ultrasmall Ru nanoparticles average diameter 2.5 nm (hereafter abbreviated as NPs@HNC). It is found that Fermi level difference HNC can cause self-driven migration electrons from NPs substrate, which leads generation built-in electric field directional flow electrons, thereby enhancing intrinsic activity. In addition, immobilization ultrafine on skeleton effectively inhibit undesired migration, agglomeration detachment sites, thus ensuring remarkable structural stability. As result, NPs@HNC optimal delivers superior electrochemical activity small overpotential 28 mV at 10 mA cm

Language: Английский

---

Nitrogen-Doped CoP-Co₂P-Supported Ru with Interconnected Channels through a Microwave Quasi-Solid Approach for Hydrogen Evolution Reaction over a Wide pH Range

Inorganic Chemistry, Journal Year: 2024, Volume and Issue: 63(33), P. 15477 - 15484

Published: Aug. 6, 2024

Transition-metal phosphides (TMPs) have attracted extensive attention in energy-related fields, especially for electrocatalytic hydrogen evolution reaction (HER). However, it is imperative to develop a facile and time-consuming approach prepare metal with satisfactory catalytic performance. Herein, nitrogen-doped CoP-Co

Language: Английский

---