Zhichao Chen, Adhika P. Retnanto, Mark A. Stadtherr, Michael Baldea, David T. Allen
{"title":"Life Cycle Greenhouse Gas Emission Impact for Alternative Uses of Byproduct Hydrogen from Steam Cracking in the United States","authors":"Zhichao Chen, Adhika P. Retnanto, Mark A. Stadtherr, Michael Baldea, David T. Allen","doi":"10.1021/acssusresmgt.5c00673","DOIUrl":"https://doi.org/10.1021/acssusresmgt.5c00673","url":null,"abstract":"<p>More than 3 million metric tons of byproduct hydrogen are produced annually from steam crackers in the United States. Most of it is used for heat generation on-site. The greenhouse gas emission impacts of alternative scenarios for utilizing this large-scale production of byproduct hydrogen were evaluated, including exporting it to other processes as merchant hydrogen, using it as a chemical feedstock with captured CO<sub>2</sub> for methanol production, and generating electricity in fuel cells. Utilizing byproduct hydrogen as merchant hydrogen or as a chemical feedstock for methanol production results in a net reduction in greenhouse gas (GHG) emissions. Sale of byproduct hydrogen as merchant hydrogen results in lower GHG emissions (7.9 kg CO<sub>2</sub>e/kg H<sub>2</sub>) compared to standard merchant hydrogen production from steam methane reforming (>10 kg CO<sub>2</sub>e/kg H<sub>2</sub>). Using byproduct hydrogen as a chemical feedstock for combined ethylene and methanol production has 13% lower emission estimates when natural gas replaces the displaced hydrogen in the cracking furnace to 34% when zero-carbon energy is used as the substitute. Electricity generation in fuel cells using byproduct hydrogen has similar GHG emissions to generation of electricity using high-efficiency gas turbines because when the hydrogen originally used for process heat is separated and used in the fuel cell, its original use for process heat is assumed to be replaced with natural gas. Overall, the greenhouse gas benefits associated with alternative uses of byproduct hydrogen could grow in the longer term if the current use of hydrogen in process heating is electrified.</p>","PeriodicalId":100015,"journal":{"name":"ACS Sustainable Resource Management","volume":"3 8","pages":"2573–2581"},"PeriodicalIF":0.0,"publicationDate":"2026-08-27","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"148822395","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":0,"RegionCategory":"","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}
Gabriela A. Corrêa, Mário M. Q. Simões, Susana L. H. Rebelo
{"title":"Wood Fiber/Iron Salicylate Composite for Organic Dye Removal in Water Purification: Adsorption and Visible Light-Assisted Degradation","authors":"Gabriela A. Corrêa, Mário M. Q. Simões, Susana L. H. Rebelo","doi":"10.1021/acssusresmgt.6c00251","DOIUrl":"https://doi.org/10.1021/acssusresmgt.6c00251","url":null,"abstract":"<p>Cost-effective, nature-based advanced materials offer highly promising platforms for sustainable removal of recalcitrant dyes in water treatment technologies. In the present work, wood fibers (WFs) act as renewable support, providing essential anchoring functionalities, structural robustness, and chromophore units on the lignocellulose surface. The covalent immobilization of iron salicylate—a bio-derivable catalyst characterized by strong Fe(III) coordination and high oxidative stability—was achieved under ecofriendly microwave heating conditions, yielding iron loadings of 0.5 at %. The WF-[Fe(Sal)] material showed remarkable trade-off between catalytic activity and stability throughout photocatalytic dye degradation, in the presence of visible light and H<sub>2</sub>O<sub>2</sub>. Cationic dyes, rhodamine B (RB) and methylene blue (MB), were removed through a synergistic mechanism of adsorption and catalytic degradation, while the removal of the anionic dye, indigo carmine, was primarily driven by oxidative degradation. Under optimal conditions, cationic dye removal efficiencies as high as 97% for RB and 89% for MB within 150 min were achieved in the presence of H<sub>2</sub>O<sub>2</sub> vs 82% for RB and MB in the absence of H<sub>2</sub>O<sub>2</sub>. As for the anionic dye indigo carmine, 93% removal was obtained in the presence of H<sub>2</sub>O<sub>2</sub> vs 8% in the absence of H<sub>2</sub>O<sub>2</sub>. Furthermore, the catalytic material maintained its structural and chemical integrity over five cycles, with no detectable iron leaching.</p>","PeriodicalId":100015,"journal":{"name":"ACS Sustainable Resource Management","volume":"3 8","pages":"2777–2789"},"PeriodicalIF":0.0,"publicationDate":"2026-08-27","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"148822401","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":0,"RegionCategory":"","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}
Lin Lin, Hyeongjun Koh, Shamala G. Krishnan, Ronan Pelé, Laurie Vion-Broussailles, Ange Nzihou, Kelsey B. Hatzell
{"title":"Rapid Graphitization of Biomass Using Intensive Joule Heating","authors":"Lin Lin, Hyeongjun Koh, Shamala G. Krishnan, Ronan Pelé, Laurie Vion-Broussailles, Ange Nzihou, Kelsey B. Hatzell","doi":"10.1021/acssusresmgt.6c00133","DOIUrl":"https://doi.org/10.1021/acssusresmgt.6c00133","url":null,"abstract":"<p>Graphite plays an essential role in energy storage and electrochemical applications; however, the reliance on mining and petroleum-derived precursors in conventional graphite manufacturing presents environmental and economic challenges. Biomass offers a renewable and widely available alternative feedstock for synthetic graphite production. In this study, we explore the graphitization of cellulose as a model biomass precursor, focusing on how graphitization heating conditions influence microstructural evolution and electrochemical behavior. Using rapid Joule heating and conventional thermal treatments, we characterize the resulting biocarbon materials with respect to their crystallinity, grain size, and morphology. Electrochemical testing reveals that heating rate and duration significantly impact capacity retention and rate performance, with faster heating producing smaller grain sizes and improved high-rate capabilities. These findings demonstrate a direct link between processing conditions and electrochemical performance, highlighting biomass-derived graphite as a viable pathway toward distributed graphite production.</p>","PeriodicalId":100015,"journal":{"name":"ACS Sustainable Resource Management","volume":"3 8","pages":"2693–2701"},"PeriodicalIF":0.0,"publicationDate":"2026-08-27","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"148822436","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":0,"RegionCategory":"","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}
Yasuhito Koyama, Sota Nozawa, Koji Yamamoto, Takuya Sagawa, Kazufumi Kohno, Atsushi Fukuoka, Hirokazu Kobayashi
{"title":"Chitin-Based Biorefinery-Derived Isosorbide Analogues as Rigid Building Blocks for Thermally Stable Polyacrylamides","authors":"Yasuhito Koyama, Sota Nozawa, Koji Yamamoto, Takuya Sagawa, Kazufumi Kohno, Atsushi Fukuoka, Hirokazu Kobayashi","doi":"10.1021/acssusresmgt.6c00310","DOIUrl":"https://doi.org/10.1021/acssusresmgt.6c00310","url":null,"abstract":"<p>Chitin is an abundant and renewable biomass resource with considerable potential as a feedstock for sustainable polymer materials. Here, we report a chitin-based biorefinery approach to isosorbide analogous acrylamide monomers and their radical polymerization into thermally stable polyacrylamides. An alcohol-free acrylamide monomer is successfully synthesized and polymerized under both redox-initiated and thermally initiated conditions, demonstrating robust polymerizability across diverse reaction protocols. The resulting polyacrylamide exhibits high thermal stability, with decomposition and glass transition temperatures comparable to those of common petroleum-derived engineering plastics. The polymer also shows a moderate yet meaningful fracture energy characteristic of glassy polymers. Mechanical analysis suggests that this energy dissipation is consistent with reversible interchain hydrogen-bonding interactions functioning as sacrificial bonds within the polymer physical network. In contrast, side-chain functionalization via phenyl carbamate formation markedly alters polymerization behavior and material properties, highlighting the critical roles of side-chain steric demand and intermolecular interactions in governing thermal stability and mechanical properties. Overall, this study demonstrates the potential of chitin-derived isosorbide analogues as sustainable, structurally rigid building blocks for high-performance polymer materials and provides molecular-level insights into the design of bio-based polymers with competitive thermal and mechanical properties.</p>","PeriodicalId":100015,"journal":{"name":"ACS Sustainable Resource Management","volume":"3 8","pages":"2850–2858"},"PeriodicalIF":0.0,"publicationDate":"2026-08-27","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"148815756","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":0,"RegionCategory":"","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}
{"title":"Cesium Recovery from High-Salinity Solutions under Low-Alkalinity Conditions for High-Purity Cesium Chloride Preparation","authors":"Jianfu Man, Zhengke Li, Lihao Liu, Qi Cao, Xiaojia Li, Hongyun Yang, Yunquan Yang, Yanping Huang, Wensong Li, Zhengming Yi","doi":"10.1021/acssusresmgt.6c00247","DOIUrl":"https://doi.org/10.1021/acssusresmgt.6c00247","url":null,"abstract":"<p>The recycling of process liquors during lithium extraction from lepidolite enriches Cs, Rb, K, and Na, creating a high-salinity multicomponent liquor that complicates selective cesium recovery. Here, a simple t-BAMBP/sulfonated kerosene system was developed for Cs recovery under low alkalinity. At 0.1 mol/L OH<sup>–</sup>, 1.0 mol/L t-BAMBP, for 5 min, and at an O/A ratio of 1:2, four-stage counter-current extraction achieved 99.24% Cs extraction with a Cs/Rb separation factor of 408.55. Five-stage HCl scrubbing removed 99.66% Rb and 100% K with limited Cs loss, and the spent scrubbing solution was recycled to improve Cs recovery. Subsequent stripping and recrystallization produced CsCl with 99.5% purity, while 60 h continuous operation showed stable extraction performance and less than 1% extractant loss. Slope analysis, FT-IR, and <sup>1</sup>H NMR indicate a cation-exchange mechanism driven by phenolic hydroxyl deprotonation. In the real liquor, increasing alkalinity increased the apparent participation of t-BAMBP and shifted the apparent solvation state toward a CsOR·3ROH-like state. This work provides a low-alkalinity route for selective Cs recovery from post-lithium-extraction liquor.</p>","PeriodicalId":100015,"journal":{"name":"ACS Sustainable Resource Management","volume":"3 8","pages":"2766–2776"},"PeriodicalIF":0.0,"publicationDate":"2026-08-27","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"148815640","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":0,"RegionCategory":"","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}
{"title":"Synthesizing Microporous Activated Carbon from Sugarcane Bagasse Using Varying Ratios of Activating Agents for Supercapacitor Application","authors":"Anisha N., Yuvakkumar R., Ravi G.","doi":"10.1021/acssusresmgt.5c00089","DOIUrl":"https://doi.org/10.1021/acssusresmgt.5c00089","url":null,"abstract":"<p>To develop efficient, reliable, and sustainable energy resource management systems, supercapacitors play a significant role. The choice of the energy storage material is equally crucial. Although metal oxides, metal sulfides, and metal phosphates exhibit high specific capacitance, activated carbon-based materials dominate the commercial market due to their environmental friendliness, abundant availability, and non-hazardous nature. Our ongoing task involves using bio-waste to prepare high-energy-density activated carbon. The material confirmation was confirmed through various characterizations such as XRD, Raman, FTIR, EDX, SEM, BET, and XPS. The electrochemical three-electrode analysis of the prepared activated carbon for various ZnCl<sub>2</sub> activation ratios (1:1, 1:3, 1:5) showed that the 1:3 (carbon: ZnCl<sub>2</sub>) ratio possesses higher specific capacitance compared to the other ratios, leading to further two-electrode analysis for this sample. We have prepared a symmetric full cell, achieving 117 F/g for 1 A/g, with corresponding 37 Wh/kg energy and 757 W/kg power densities. The cyclic stability of the sample explored 90% capacitive retention over 10,000 cycles. To emphasize the real-time performance of the prepared activated carbon in energy storage, an LED was powered by connecting two full cells in series.</p>","PeriodicalId":100015,"journal":{"name":"ACS Sustainable Resource Management","volume":"3 8","pages":"2532–2545"},"PeriodicalIF":0.0,"publicationDate":"2026-08-27","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"148815825","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":0,"RegionCategory":"","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}
Syed Z. Islam, Shailesh Dangwal, Priyesh Wagh, Vishwanath Deshmane, Pranathi Gangavarapu, Samuel F. Evans, Sidharth Mahajan, Christopher A. Zarzana, Ramesh Bhave
{"title":"Separation and Recovery of High-Purity Dysprosium from Electric Vehicle Scrap Permanent Magnets Using Cyanex 572, a Cationic Extractant in a Membrane Solvent Extraction Process","authors":"Syed Z. Islam, Shailesh Dangwal, Priyesh Wagh, Vishwanath Deshmane, Pranathi Gangavarapu, Samuel F. Evans, Sidharth Mahajan, Christopher A. Zarzana, Ramesh Bhave","doi":"10.1021/acssusresmgt.5c00559","DOIUrl":"https://doi.org/10.1021/acssusresmgt.5c00559","url":null,"abstract":"<p>Rare earth elements (REEs), especially heavy rare earth elements such as dysprosium (Dy), have gained immense attention globally due to their widespread use in many state-of-the-art technologies. Consequently, demand for REEs is increasing rapidly in comparison to their supply. Recycling of REEs from end-of-life (EoL) electronic waste (e-waste) can help to mitigate the increasing gap between the demand and supply of REEs. This study reports the separation and recovery of high-purity Dy from various feedstocks such as scrap permanent magnets (SPMs), electric vehicle (EV) magnets, and mixed rare earth oxides (REOs) using an economically viable and scalable membrane solvent extraction (MSX) process. First, the optimized conditions (organic phase composition and feed solution acid concentration) for the separation of Dy from light REEs such as neodymium (Nd) and praseodymium (Pr) were evaluated using liquid–liquid extraction. Thereafter, a multistage MSX process was developed to separate high purity (>99.5 wt %) Dy from Nd and Pr using Cyanex 572, a cationic extractant. Using feedstocks with varying initial compositions, the MSX process obtained 100% pure Dy with 63–96% Dy recovery in three to six stages with a maximum extraction rate of 2.9 g m<sup>–2</sup> h<sup>–1</sup>. Purity of the recovered Dy was confirmed via additional characterization such as scanning electron microscopy, energy dispersive X-ray spectroscopy, and X-ray diffraction. This novel MSX process holds immense potential for industry deployment for the separation of heavy and light rare REEs from a wide range of e-waste.</p>","PeriodicalId":100015,"journal":{"name":"ACS Sustainable Resource Management","volume":"3 8","pages":"2546–2556"},"PeriodicalIF":0.0,"publicationDate":"2026-08-27","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"148815734","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":0,"RegionCategory":"","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}
{"title":"Mechanistic Insights into Biochar-Enhanced Two-Stage Anaerobic Digestion of Food Waste: Significance of Microbial Community Dynamics","authors":"Nesma Eltoukhy Allam, Basem S. Zakaria, Monisha Alam, Sherien Elagroudy, Mohamed N.A. Meshref, Bipro Ranjan Dhar","doi":"10.1021/acssusresmgt.6c00128","DOIUrl":"https://doi.org/10.1021/acssusresmgt.6c00128","url":null,"abstract":"<p>Adding biochar in anaerobic digestion (AD) has been widely investigated recently in single-stage AD rather than in two-stage AD. Despite a few reports suggesting improved performance of two-stage AD with biochar addition, the existing reports provide limited insights into the role of biochar in microbial dynamics and its mechanisms of enhancement. This study investigated the impact of different biochar dosages (5, 15, and 25 g/L) on the two-stage mesophilic AD of food waste, focusing on biogas production, dynamics of volatile fatty acids (VFAs), organic removal, and microbial community diversity and structure. During the first stage, cumulative hydrogen (H<sub>2</sub>) production increased by 23−30% in biochar-amended reactors, while in the methanogenesis stage, cumulative methane (CH<sub>4</sub>) yields increased by 31−41%. However, no statisticallly significant differences (<em>p</em> > 0.05) were obeserved among the different biochar dosages, suggesting that 5 g/L would be the optimum dosage for both stages. Biochar promoted the accumulation of VFAs during the first stage while enhancing VFA conversion to methane in the second stage, with 5 g/L of biochar exhibiting the lowest VFA accumulation. In addition to increased microbial diversity and richness, 5 g/L of biochar also selectively enriched various fast-growing hydrolytic/fermentative taxa in the first stage while significantly stimulating syntrophic fatty-acid degraders (<em>Syntrophomonas</em>) and metabolically versatile methanogens (<em>Methanosarcina</em>) in the second stage, indicating improved syntrophic cooperation and potential facilitation of direct interspecies electron transfer (DIET). These findings highlight biochar as a promising functional additive for improving two-stage AD of food waste.</p>","PeriodicalId":100015,"journal":{"name":"ACS Sustainable Resource Management","volume":"3 8","pages":"2682–2692"},"PeriodicalIF":0.0,"publicationDate":"2026-08-27","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"148815796","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":0,"RegionCategory":"","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}
{"title":"Soft Foam Polyurethane Recycling and Foaming in Reactive Extrusion Using Partial Aminolysis and a Latent Cross-Linking Chemistry","authors":"Morgane Pingret, Pascal Tiquet, Pierre Piluso","doi":"10.1021/acssusresmgt.6c00057","DOIUrl":"https://doi.org/10.1021/acssusresmgt.6c00057","url":null,"abstract":"<p>Polyurethane (PU) foams are widely used as thermosets and yet poorly recycled due to their generally cross-linked nature and the difficulty in recovering their isolated monomers from chemical recycling processes. A mechanochemical recycling process was demonstrated in three steps in an internal mixer: partial aminolysis, cross-linking, and foaming. Partial aminolysis was successfully demonstrated using a cycloaliphatic diamine and yielded a melt-processable PU with gel content (GC) of 54.4% using as low as 6 wt % of diamine from a pristine PU with 94.1% GC. The material was then efficiently cross-linked by blending it with a blocked isocyanate based on 4,4′-methylenebis (phenyl isocyanate) at 100 °C and then triggering its reactivity at 160 °C to yield a material with GC of 84.7%. The blocked isocyanate unblocking kinetics were assessed using rheometry and revealed partial reactivity even at 100 °C. The mechanical properties of the cross-linked recycled PU exhibited significantly improved properties as a consequence of network reformation. Finally, the concomitant use of a chemical blowing agent with blocked isocyanate allowed to yield a cross-linked recycled PU foam as a final step of mechanical processing. The strong reactivity of the blocked isocyanate appeared to limit the foaming marginally. Finally, the cross-linking and foaming process was performed successfully in one step in a single-screw extruder. This study demonstrates the potential of mechanical and chemical hybrid processes as short-loop recycling processes for thermosets.</p>","PeriodicalId":100015,"journal":{"name":"ACS Sustainable Resource Management","volume":"3 8","pages":"2594–2608"},"PeriodicalIF":0.0,"publicationDate":"2026-08-27","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"148822407","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":0,"RegionCategory":"","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}
{"title":"Investigating the Synergistic Effects between Ni and Me Species over Nano-Nickel-Based Catalyst Ni-Me/HZSM-5 (Me = Co, Cu, La) on the In Situ Catalytic Pyrolysis of Distillers' Dried Grains with Solubles (DDGS)","authors":"Chunyan Hu, Xinyu Ju, Mouxiao Song, Wenwu Liu, Xiuping Wang, Wenxuan Jiang, Changyong Wang, Chuan Zhou, Jiahao Xu, Jiayi Liu, Jingyu Li, Jiali Liu, Qin Su","doi":"10.1021/acssusresmgt.5c00617","DOIUrl":"https://doi.org/10.1021/acssusresmgt.5c00617","url":null,"abstract":"<p>To investigate the synergistic effects between Ni and Me over Ni−Me/HZSM-5 on the pyrolysis of distillers’ dried grains with solubles (DDGS), the related testing experiments and characterizations of XRD, NH<sub>3</sub>-TPD, H<sub>2</sub>-TPR, and (HR)TEM were performed. According to experimental results, it was supposed that, with the pyrolytic time increasing, the reduction reaction reached dynamic equilibrium leading to a Cu−Co−La decreasing sequence of the amount and strength of acidity, which led to the relative content of organosilicon compounds in bio-oil decreasing with Ni−Cu/HZSM-5 (60.81%), Ni−Co/HZSM-5 (43.42%), and Ni−La/HZSM-5 (42.11%) and that of long-chain carboxylic acid and ester increasing with Ni−Cu/HZMS-5 (4.83%), Ni−Co/HZSM-5 (8.35%), and Ni−La/HZSM-5 (12.93%). The weaker the strong acidity, the more phenolic compounds generated. As regards Ni−Co/HZSM-5, apart from its intensity of acidity, the relatively uniform and biggest pore size might also be responsible for its strongest capability of generating aromatic compounds. In turn, for Ni−Cu/HZSM-5, its low utilization rate of active sites might be related to its weakest capability of producing phenolic compounds. Ni−Cu/HZSM-5 possessed moderately strong abilities to promote the catalytic reforming of methane with carbon dioxide or water vapor with Ni and Cu grippers; Cu inveigled electrons and transferred to Ni creating Ni<sup>δδδ−</sup> (the atomically dispersed electron-rich nickel species). Thus, the intermediates easily captured electrons from Ni<sup>δδδ−</sup> to release more H<sub>2</sub>. The effect from Ni−Co/HZSM-5 was similar but inferior to Ni−Cu/HZSM-5 in synergism; for Ni−La/HZSM-5, despite the weakest acidity and lack of synergistic effect of electrons transferring between Ni<sup>δδδ−</sup> and La<sup>δ−</sup>, the maximum scattering of Ni(La) species, the strongest gripper of La<sub>2</sub>O<sub>3</sub> for adsorbing CO<sub>2</sub>, and the highest ratio of A/C (6.89) synergistically generated H<sub>2</sub>-rich pyrolytic gas with 78.29 vol % of H<sub>2</sub>. This work may encourage researchers and wineries to seek the synergism between specific elements for exploring novel catalysts to convert waste biomass materials into high-value-added products and embarking on sustainable development paths.</p>","PeriodicalId":100015,"journal":{"name":"ACS Sustainable Resource Management","volume":"3 8","pages":"2557–2572"},"PeriodicalIF":0.0,"publicationDate":"2026-08-27","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"148822457","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":0,"RegionCategory":"","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}