Biomass Photoreforming for Hydrogen and Value‐Added Chemicals Co‐Production on Hierarchically Porous Photocatalysts

Advanced Energy Materials, Journal Year: 2023, Volume and Issue: 13(21)

Published: April 7, 2023

Abstract Biomass, a naturally abundant, sustainable and clean resource has great potential as an alternative to replace the limited fossil feedstock for value‐added chemicals fuels. Biomass with abundant reductive functional groups could theoretically act electron donor consume photogenerated holes and/or active free radicals. photoreforming over semiconductor photocatalysts using solar light energy input attracts much attention in this context. However, biomass still suffers low conversion efficiency product selectivity due its structural complexity, poor solubility unclear reaction mechanism. Owing advanced features of mass diffusion derivatives adjustable surface properties, hierarchically porous desired sites at each length scale porosity have shown their superiority boosting photoreforming. Herein, critical review is presented on selective simultaneous H 2 co‐production photocatalysts. The fundamentals current bottleneck valorization by photocatalytic process are analyzed. rational photocatalyst design structure improve transfer highlighted. Finally challenges opportunities perspective ssection.

Language: Английский

---

Emerging Photoreforming Process to Hydrogen Production: A Future Energy

Advanced Functional Materials, Journal Year: 2024, Volume and Issue: 34(40)

Published: April 16, 2024

Abstract In the quest of renewable energy technologies, solar photoreforming emerges as one affordable yet challenging process for converting biomass into hydrogen, hydrocarbon fuels, and chemicals. This review highlights state‐of‐the‐art photoreforming, elucidating its underlying mechanisms conversion dissipated polymers H 2 valuable Biomass feedstocks such carbohydrates, agricultural residues, glycopolymers, food wastes, waste plastics are evaluated based on their chemical composition, content, sustainability aspects, exploring selection appropriate bio‐renewable resources, considering abundance, availability, potential hydrogen production. The impact diverse parameters efficiency is explored, encompassing factors like reaction temperature, pH, catalyst loading, reactor design, solvent effect, light intensity across various sacrificial substrates. discussion also considers correlation with production rate, selectivity, efficiency. buckles design synthesis functional photocatalysts biomass‐derived feedstock, highlighting photocatalytic (PC) properties in reforming processes related feedstock chemicals biofuel. delves pathways future advancements including artificial intelligence (AI) machine learning (ML), alongside addressing challenges insightful perspectives within this evolving field green energy.

Language: Английский

---

Tailoring the catalytic sites by regulating photogenerated electron/hole pairs separation spatially for simultaneous selective oxidation of benzyl alcohol and hydrogen evolution

Journal of Colloid and Interface Science, Journal Year: 2024, Volume and Issue: 659, P. 776 - 787

Published: Jan. 9, 2024

Language: Английский

---

Photocatalysts for steering charge transfer and radical reactions in biorefineries

Nature Synthesis, Journal Year: 2024, Volume and Issue: 3(4), P. 438 - 451

Published: March 26, 2024

Language: Английский

---

Catalyst design and structure control for photocatalytic refineries of cellulosic biomass to fuels and chemicals

Journal of Energy Chemistry, Journal Year: 2024, Volume and Issue: 94, P. 102 - 127

Published: March 9, 2024

Language: Английский

---

Intermetallic Synergy in PdCuCo Catalysts Boosts C─C Bond Cleavage of Polyalcohol Electrooxidation

Advanced Functional Materials, Journal Year: 2025, Volume and Issue: unknown

Published: Feb. 9, 2025

Abstract Multi‐metallic catalysts with specific structures play a crucial role in enhancing the selectivity and activity of chemical reactions. However, challenges such as unfavorable alcohol adsorption on catalysts, CO poisoning, high free energy barriers during oxidation processes pose significant obstacles to catalysts' ability cleave C─C bonds for complete oxidation. Here, series PdCuCo metalene electrocatalysts is reported, wherein varying intermetallic interactions among Pd, Cu, Co effectively modulate pathway. Notably, catalyst Pd 0.15 Cu 0.35 2 , synthesized by galvanic replacement metallic surface, delivers remarkably electrocatalytic ethylene glycol glycerol alkaline electrolytes (9.7 10.9 A mg −1 respectively), both which are much better than reported broadly applicable various alcohols. High performance assigned structural advantages material synergistic effects multiple metals. This synergy not merely enhances surface electronics, fostering creation exclusive active sites, but also facilitates oxidative cleavage stable bond efficient

Language: Английский

---

Photocatalytic selective oxidation of glycerol to formic acid and formaldehyde over surface cobalt-doped titanium dioxide

Journal of Colloid and Interface Science, Journal Year: 2025, Volume and Issue: 684, P. 140 - 147

Published: Jan. 7, 2025

Language: Английский

---

Significantly enhanced photocatalytic hydrogen production performance of MoS2/CNTs/CdS with carbon nanotubes as the charge mediators

International Journal of Hydrogen Energy, Journal Year: 2023, Volume and Issue: 51, P. 748 - 757

Published: July 25, 2023

Language: Английский

---

Solar‐Driven Biomass Reforming for Hydrogen Generation: Principles, Advances, and Challenges

Advanced Science, Journal Year: 2024, Volume and Issue: 11(29)

Published: May 30, 2024

Abstract Hydrogen (H 2 ) has emerged as a clean and versatile energy carrier to power carbon‐neutral economy for the post‐fossil era. generation from low‐cost renewable biomass by virtually inexhaustible solar presents an innovative strategy process organic solid waste, combat crisis, achieve carbon neutrality. Herein, progress breakthroughs in solar‐powered H production are reviewed. The basic principles of solar‐driven first introduced better understanding reaction mechanism. Next, merits shortcomings various semiconductors cocatalysts summarized, strategies addressing related issues also elaborated. Then, bio‐based feedstocks reviewed with emphasis on effect photocatalysts catalytic systems performance. Of note, concurrent value‐added chemicals reforming is emphasized well. Meanwhile, emerging photo‐thermal coupling that shows grand prospect maximally utilizing entire spectrum discussed. Further, direct utilization hydrogen green reductant producing via reactions highlighted. Finally, challenges perspectives photoreforming toward envisioned.

Language: Английский

---

Photothermal Conversion of Biopolyols and Sugars into Syngas over Pd–PdO/TiO₂

ACS Catalysis, Journal Year: 2025, Volume and Issue: 15(3), P. 1663 - 1671

Published: Jan. 16, 2025

Photocatalysis is promising for reforming biopolyols and sugars into syngas (CO+H2), while the carbon easily overoxidized to CO2 due hydroxyl radical (•OH) under aqueous conditions. Targeting this problem, a temperature-controlled photo-reforming strategy proposed Pd–PdO/TiO2 used as catalyst. The photocatalytic process effectively breaks C–H C–C bonds of biomass produce radicals. increased reaction temperature not only increases rate but also thermodynamically fine-tunes process, facilitating decarbonylation acyl intermediates prohibiting its overoxidation CO2. With from 40 180 °C, CO selectivity glycerol over catalyst conditions improves significantly 1.6% 66%. unique structure plays an important role in production. On one hand, decorated Pd species promote light adsorption separation photogenerated charge carriers. other PdO nanoparticles facilitate intermediates. A yield 60% photothermal can be obtained Pd–PdO/TiO2, which 3 times that pristine TiO2 (20%). wide range converted through system with 20–66%, along 0.17–2.13 mmol·g–1·h–1 H2 evolution.

Language: Английский

---