Evidence map›Paper›PMID 40755414›Full record

ArticleAdvanced science (Weinheim, Baden-Wurttemberg, Germany)2025

Graphitized Biochar Derived from Agricultural Wastes Enhances Methanogenesis via Conductivity-Driven Direct Interspecies Electron Transfer.

Caiyun Yang, Zhen Liu, Weiguo Liu, Yuxin Qiu, Shuai Zhang, Xinke Zhang, Mengyi Wang, Heng Wu, Hongyi Lyu, Jinzhi Huang and 9 more

Abstract read
PubMed Full text at PMC Publisher
In one paragraph

Article in Advanced science (Weinheim, Baden-Wurttemberg, Germany), 2025. The graph could read no effect estimate from its abstract, so it casts no vote on the map. Cited by 3 papers.

0numbers the graph read from it
0cells of the map it votes in
3citing papers in PubMed
–field-weighted citation impact
1 · What the graph read from it

What it found

Each row is one number read from the abstract, on the scale the paper reported it, with its interval. Left of the dashed line favours the treatment, right favours the comparator. Under each row is the sentence it came from. New to these charts? A ten-minute tutorial.

The abstract states no effect estimate the extractor could read, or names no intervention and outcome on the map, so this paper lights no cell and moves no belief. It is still indexed, cited and linked below.

2 · The registry

The trial behind it

Trials whose registry record cites this paper, or whose number appears in the abstract. A trial that started after this paper was published is citing it as background, not reporting it.

Neither the registry nor the abstract names a trial number. If this is a trial report, that itself is worth knowing.

3 · Its place in the literature

Who cites it

3 citing papers in PubMed.

  1. Article
  2. Review
  3. Article
4 · The record

Corrections and comments

PubMed lists nothing against this paper. Absence here is not a guarantee, only a check that was made.

5 · Who and what money

Authors and funding

19 authors.

Caiyun YangCollege of Life Science, Northwest A&F University, Yangling, Shaanxi, 712100, P. R. China.
Zhen LiuCollege of Mechanical and Electronic Engineering, Northwest A&F University, Yangling, Shaanxi, 712100, P. R. China.
Weiguo LiuInterdisciplinary Research Center for Biomass Energy and Materials (IRC-BEM), Northwest A&F University, Yangling, Shaanxi, 712100, P. R. China.
Yuxin QiuCollege of Mechanical and Electronic Engineering, Northwest A&F University, Yangling, Shaanxi, 712100, P. R. China.
Shuai ZhangCollege of Food Engineering & Nutritional Science SNNU, Shaanxi Normal University, Xian, Shaanxi, 710119, P. R. China.
Xinke ZhangCollege of Mechanical and Electronic Engineering, Northwest A&F University, Yangling, Shaanxi, 712100, P. R. China.
Mengyi WangCollege of Mechanical and Electronic Engineering, Northwest A&F University, Yangling, Shaanxi, 712100, P. R. China.
Heng WuCollege of Mechanical and Electronic Engineering, Northwest A&F University, Yangling, Shaanxi, 712100, P. R. China.
Hongyi LyuCollege of Mechanical and Electronic Engineering, Northwest A&F University, Yangling, Shaanxi, 712100, P. R. China.
Jinzhi HuangCollege of Mechanical and Electronic Engineering, Northwest A&F University, Yangling, Shaanxi, 712100, P. R. China.
Jia LiuCollege of Mechanical and Electronic Engineering, Northwest A&F University, Yangling, Shaanxi, 712100, P. R. China.
Yirong WangInterdisciplinary Research Center for Biomass Energy and Materials (IRC-BEM), Northwest A&F University, Yangling, Shaanxi, 712100, P. R. China.
Siying HeCollege of Mechanical and Electronic Engineering, Northwest A&F University, Yangling, Shaanxi, 712100, P. R. China.
Dongze GuCollege of Mechanical and Electronic Engineering, Northwest A&F University, Yangling, Shaanxi, 712100, P. R. China.
Xiaohui GuoCollege of Mechanical and Electronic Engineering, Northwest A&F University, Yangling, Shaanxi, 712100, P. R. China.
Xuanmin YangCollege of Mechanical and Electronic Engineering, Northwest A&F University, Yangling, Shaanxi, 712100, P. R. China.
Teng XieCollege of Mechanical and Electronic Engineering, Northwest A&F University, Yangling, Shaanxi, 712100, P. R. China.
Heyu ChenCollege of Mechanical and Electronic Engineering, Northwest A&F University, Yangling, Shaanxi, 712100, P. R. China.
Yiqing YaoCollege of Mechanical and Electronic Engineering, Northwest A&F University, Yangling, Shaanxi, 712100, P. R. China.ORCID https://orcid.org/0000-0002-4692-8977

Funding

Chinese Universities Scientific Fund 2452021112Foundation of State Key Laboratory of High-efficiency Utilization of Coal and Green Chemical Engineering 2022-K32Guangdong Provincial University Innovation Team Project 2023KCXTD038National Key R&D Program of China 2024YFD1700500Northwest A&F University Young Talent Project Z111021902Shaanxi Key R&D Program of China 2024CY2-GJHX-74Shaanxi Science and Technology Innovation Team Project 2025RS-CXTD-032Shenzhen Natural Science Foundation JCYJ20220530161408019
6 · The paper itself

Abstract

Biochar has emerged as a promising conductor for facilitating direct interspecies electron transfer (DIET) in anaerobic digestion (AD), yet the mechanisms linking its structural features to methanogenic performance remain unclear. Here, how feedstock type and pyrolysis conditions modulate biochar conductivity and consequently shape methanogenic pathways is investigated. Using straw, wood, and nutshell-derived biochars, nutshell biochar pyrolyzed at 550 °C(CC550) is demonstrated to achieve the highest methane yield, enhancing production by 59% compared to the control and outperforming straw and wood-based biochars by 12% and 5% respectively. Graphitization analysis confirms that high electrical conductivity is key to accelerating methanogenesis. Metagenomic profiling reveals that CC550 enriches cellulose-degrading bacteria and DIET-associated taxa, while upregulating genes related to pili and cytochrome c expression, promoting acetoclastic methanogenesis through enhanced electron flow. These findings highlight the role of graphitic biochar as a metabolic modulator in AD and offer insights for engineering carbon materials to optimize bioenergy recovery from organic waste.

Indexed as

CharcoalGraphiteMethaneAgricultureAnaerobiosisElectric ConductivityElectron TransportbiocharCharcoalGraphiteMethaneacetoclastic methanogenesisanaerobic digestionbiochar conductivitydirect interspecies electron transfer (DIET)graphitized carbon

Identifiers

PMID40755414
PMCPMC12591188

What OpenQuestion holds

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LicenceCC BY
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Registered trials

None linked

Read under generation 80e0d062 · epoch 390. Bibliography from PubMed, PubMed Central and OpenAlex; grants from NIH RePORTER; trial links from ClinicalTrials.gov; estimates, votes and beliefs from the OpenQuestion graph.